CN109586772B - Multi-antenna wireless relay MIMO system and transmission method thereof - Google Patents
Multi-antenna wireless relay MIMO system and transmission method thereof Download PDFInfo
- Publication number
- CN109586772B CN109586772B CN201910014842.5A CN201910014842A CN109586772B CN 109586772 B CN109586772 B CN 109586772B CN 201910014842 A CN201910014842 A CN 201910014842A CN 109586772 B CN109586772 B CN 109586772B
- Authority
- CN
- China
- Prior art keywords
- node
- formula
- relay node
- relay
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title description 6
- 230000006854 communication Effects 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 4
- 238000007476 Maximum Likelihood Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
本发明公开了一种多天线无线中继MIMO系统，包括：源节点S、中继节点R、目的节点D；在节点S、R和R、D间均采用正交空间调制系统传输。对放大转发协议和译码转发协议下的基于正交空间调制的中继MIMO通信系统进行了仿真实验。本发明的优点在于：具有更优的误码性能。
The invention discloses a multi-antenna wireless relay MIMO system, comprising: a source node S, a relay node R, and a destination node D; the orthogonal spatial modulation system is used for transmission among the nodes S, R and R and D. Simulation experiments are carried out on the relay MIMO communication system based on orthogonal spatial modulation under the amplify-and-forward protocol and the decode-and-forward protocol. The advantage of the present invention is that it has better bit error performance.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a multi-antenna wireless relay MIMO system based on orthogonal space modulation and a transmission method thereof.
Background
Spatial Modulation (SM) to improve transmission performance in wireless communication systems[1-3]The antenna can not only transmit information by using modulation symbols, but also transmit information by using the spatial position of the antenna, which is a transmission scheme that people pay more and more attention to. Quadrature Spatial Modulation (QSM)[4]Is a novel space modulation technology which can eliminate the correlation of channels so as to improve the performance of the MIMO communication system[5-7]. The orthogonal space modulation divides a group of information bit stream into three parts in each transmission time slot, one part is mapped into corresponding M-QAM modulation symbols according to the adopted modulation mode, and the other two parts are respectively used for mapping the antenna positions of the real part and the imaginary part of the transmitted modulation symbols.
In wireless communication network, relay transmission mode can extend wireless coverage[8]Can improve the reliability of the wireless network[9]To improve transmission performance of a relay MIMO communication system [10]]A multi-relay AF-MISO communication system based on orthogonal spatial modulation is researched in a multi-relay wireless communication system; document [11]In order to improve the error code performance of a wireless relay system with a direct route between receiving and transmitting, a DF-MISO communication system based on orthogonal space modulation is researched; and document [12 ]]The error code performance of the two-way relay cooperative communication system based on orthogonal space modulation under the decoding forwarding protocol is researched. In the relay transmission system based on orthogonal spatial modulation in the wireless communication network, the relay node is a single antenna.
Reference to the literature
[1]Ganesan S,Mesleh R,Haas H,et al.On the Performance of Spatial Modulation OFDM[C]Signals,Systems and Computers,2006.ACSSC'06.Fortieth Asilomar Conference on.IEEE,2006:1825-1829；
[2]R.Mesleh,H.Haas,C.W.Ahn,and S.Yun,―Spatial modulation—A new low-complexity spectral efficiency enhancing technique,”in Proc.CHINACOM,Oct.25–27,2006,pp.1–5；
[3]R.Mesleh,H.Haas,C.W.Ahn,and S.Yun,―Spatial modulation–OFDM,”in Proc.11th InOWo,Aug.30–31,2006,pp.288–292；
[4]Mesleh R,Althunibat S,Younis A.Differential Quadrature Spatial Modulation[J].Etri Journal,2015,39(99):1-1；
[5]Mesleh R,Ikki S S.A High Spectral Efficiency Spatial Modulation Technique[C]Vehicular Technology Conference.IEEE,2014:1-5；
[6]Mesleh R,Ikki S S.On the impact of imperfect channel knowledge on the performance of quadrature spatial modulation[C]Wireless Communications and Networking Conference.IEEE,2015:534-538；
[7]Younis A,Mesleh R,Haas H.Quadrature Spatial Modulation Performance Over Nakagamim Fading Channels[J].IEEE Transactions on Vehicular Technology,2016,65(12):10227-10231；
[8]Dahlman E,Parkvall S,
J,et al.3G Evolution:HSPA and LTE for mobilebroadband[J].pp22,2008；
[9]Wang B,Zhang J,Host-Madsen A.On the capacity of MIMO relay channels[J].IEEE Transactions on Information Theory,2005,51(1):29-43；
[10]Afana A,Mesleh R,Ikki S,et al.Performance of Quadrature Spatial Modulation in Amplify-and-Forward Cooperative Relaying[J].IEEE Communications Letters,2016,20(2):240-243；
[11]Afana A,Erdogan E,Ikki S.Quadrature Spatial Modulation for Cooperative MIMO 5G Wireless Networks[C]GLOBECOM Workshops.IEEE,2017:1-5；
[12]Althunibat S,Mesleh R.Performance Analysis of Quadrature Spatial Modulation in Two-Way Relaying Cooperative Networks[J].Iet Communications,2017,12(4)。
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multi-antenna wireless relay MIMO system and a transmission method thereof, which can effectively solve the problems in the prior art.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a multi-antenna wireless relay MIMO system comprising: a source node S, a relay node R and a destination node D; an orthogonal spatial modulation system is used for transmission between nodes S, R and R, D.
The source node S, the relay node R and the destination node D are respectively provided with NS、NRAnd NDN is formed between root antenna and node S, RR×NSDimension channel matrix H, N formed between nodes R, DD×NRThe channel matrix G is maintained.
H. G is respectively represented as:
(1) in the formula
hji、glkAll obey a complex gaussian distribution with a mean of 0 and a variance of 1.
The quadrature space modulation system is provided with NtRoot transmitting antenna and NrA root receiving antenna; in each transmission period, the source is generated to a length of
Is divided into a stream of binary information bits c of length b1＝log2(M)、b2＝log2(Nt) And b3＝log2(Nt) C ofb1、cb2And cb3Three parts
Length b1Of the information bit stream cb1Constellation symbol set S ═ S in M-QAM modulation1,s2,...,sMMapping into modulation symbol s ═ s in }re+jsim(S ∈ S); length b2、b3Of the information bit stream cb2、cb3Respectively for use in NtSelecting the a-th transmitting antennaiRoot, ajRoot aerial emission sreAnd sim(ai,aj∈{1,2,...,Nt}). According to ai，ajIs mapped to form NtThe dimension transmit vector x has two cases:
①ai≠ajwhen the temperature of the water is higher than the set temperature,
②ai＝ajwhen the temperature of the water is higher than the set temperature,
sending vector x via Nr×NtThe dimensional channel matrix H reaches the receiving end, and the receiving end receives NrThe x 1-dimensional signal y is:
y＝Hx+n (4)
(4) in the formula
(4) The column vector by H in the formula can be written as:
assuming that the receiving end knows the channel matrix H, the maximum likelihood detection (ML) algorithm is adopted to detect the channel matrix H according to the H and the received vector y
And recovering a bit stream of length b
(6) In the formula | · | non-conducting phosphor2Is Frobenius norm.
Based on the transmission method of the multi-antenna relay MIMO system, in a transmission time slot of the system, orthogonal space modulation transmission is adopted between the node S, R and the node R, D, and the whole communication process is divided into two stages: the first stage is that the source node S sends a signal to the relay node R; in the second stage, the relay node R forwards the received signal to the destination node D according to two processing modes.
The first processing mode is QSM-AF-MIMO
In the first phase of each transmission time slot, the information bit stream of the source node S reaches the relay node R according to the transmission vector x generated by the orthogonal space modulation transmission scheme from the transmission channel to form NRX 1 dimensional yS,R：
yS,R＝haisre+jhajsim+nS,R (7)
(7) In the formula nS,RN of (A)RThe elements are the same as the element distribution of n in the formula (4), namely nk～CN(0,σR 2)
In the second stage, according to the reference [10]]The relay node R adopts an Amplification Forwarding (AF) transmission mode to transmit yS,RForm a vector AyS,R(A is the amplification factor of the relay node) and node D receives Ay transmitted through the wireless channelS,RFormed NDX 1 dimensional signal vector yR,DComprises the following steps:
yR,D＝G(AyS,R)+nR,D＝G(Ahisre+Ajhjsim)+GAnS,R+nR,D (8)
(8) amplification factor in formula
nR,DN in (1)DThe elements are also the same as the element distribution of n in the formula (4), nk to CN (0, sigma)D 2)
Similarly, assuming node D knows the channel matrices H and G, node D will depend on H and G and the received signal yR,DCan be detected according to the formula (6)
And recovering the bit stream
The second processing mode is QSM-DF-MIMO
The number of the antennas configured for the source node S and the relay node R is N respectivelyS、NRModulation symbol constellation is MS-QAM and MR-QAM and having:
in the first stage of each transmission time slot, the communication mode from the source node S to the relay node R is the same as that of the QSM-AF-MIMO system, and the relay node R receives yS,RThen, for yS,RDetecting bit stream c with recovery length b according to formula (6)R。
In the second phase of each transmission slot, the relay node R recovers the bit stream c of length bRThen forming a transmitting vector x according to an orthogonal space modulation modeR。xRVia N between the relay node R and the destination node DD×NRThe dimensional channel matrix G is transmitted to a destination node D, and the node D receives NDX 1 dimensional signal yR,DComprises the following steps:
(10) n in the formulaR,DThe same as in the formula (8).
yR,DAccording to the formula (6)
And restores the bit stream cD of b length:
compared with the prior art, the invention has the advantages that: when the antenna configuration of the wireless relay communication system is the same, the error code performance of the QSM-AF-MIMO and the QSM-DF-MIMO system is obviously improved compared with the relay MIMO system based on the traditional spatial modulation designed in the document [10 ]. Finally, the two transmission schemes are compared to find that the decoding forwarding protocol has better error code performance compared with the amplifying forwarding protocol along with the increase of the number of the relay node antennas.
Drawings
Fig. 1 is a block diagram of a multi-antenna wireless relay MIMO communication system according to embodiment 1 of the present invention;
FIG. 2 is a block diagram of an orthogonal spatial modulation system according to embodiment 1 of the present invention;
FIG. 3 is a QSM-AF-MIMO system error code curve diagram in embodiment 1 of the present invention;
FIG. 4 is a simulation graph of a QSM-DF-MIMO system in accordance with embodiment 1 of the present invention; -
FIG. 5 is a diagram of error code curves of QSM-AF-MIMO and QSM-DF-MIMO transmission schemes at different antennas of a relay node in the example 1 of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings by way of examples.
As shown in fig. 1, the multi-antenna wireless relay MIMO communication system includes: a source node S, a relay node R and a destination node D;
the source node S, the relay node R and the destination node D are respectively provided with NS、NRAnd NDN is formed between root antenna and node S, RR×NSDimension channel matrix H, N formed between nodes R, DD×NRThe channel matrix G is maintained.
H. G is respectively represented as:
(1) in the formula
hji、glkAll obey a complex gaussian distribution with a mean of 0 and a variance of 1.
In a transmission time slot of the system, the node S, R and the node R, D both use orthogonal space modulation transmission, and the whole communication process is divided into two stages: the first stage is that the source node S sends a signal to the relay node R; in the second stage, the relay node R processes the received signal in two ways (see the transmission scheme based on orthogonal spatial modulation in the multi-antenna relay MIMO system), and forwards the processed signal to the destination node D.
Quadrature Spatial Modulation (QSM)
As shown in FIG. 2, the quadrature spatial modulation system is provided with NtRoot transmitting antenna and NrThe root receives the antenna. In each transmission period, the source is generated to a length of
Is divided into a stream of binary information bits c of length b1＝log2(M)、b2＝log2(Nt) And b3＝log2(Nt) C ofb1、cb2And cb3Three parts
Length ofIs b is1Of the information bit stream cb1Constellation symbol set S ═ S in M-QAM modulation1,s2,...,sMMapping into modulation symbol s ═ s in }re+jsim(S ∈ S); length b2、b3Of the information bit stream cb2、cb3Respectively for use in NtSelecting the a-th transmitting antennaiRoot, ajRoot aerial emission sreAnd sim(ai,aj∈{1,2,...,Nt}). According to ai，ajIs mapped to form NtThe dimension transmit vector x has two cases:
③ai≠ajwhen the temperature of the water is higher than the set temperature,
④ai＝ajwhen the temperature of the water is higher than the set temperature,
sending vector x via Nr×NtThe dimensional channel matrix H reaches the receiving end, and the receiving end receives NrThe x 1-dimensional signal y is:
y＝Hx+n (4)
(4) in the formula
(4) The column vector by H in the formula can be written as:
assuming that the receiving end knows the channel matrix H, the maximum likelihood detection (ML) algorithm is adopted to detect the channel matrix H according to the H and the received vector y
And recovering a bit stream of length b
(6) In the formula | · | non-conducting phosphor2Is Frobenius norm.
Transmission scheme based on orthogonal spatial modulation in multi-antenna relay MIMO system
QSM-AF-MIMO
In a multiple-antenna relay network based on orthogonal spatial modulation amplify-and-forward transmission scheme (QSM-AF-MIMO) designed according to the block diagram of the multiple-antenna wireless relay MIMO system shown in FIG. 1, in the first stage of each transmission time slot, a transmission vector x generated by an information bit stream of a source node S according to the orthogonal spatial modulation transmission scheme arrives at a relay node R from a transmission channel to form NRX 1 dimensional yS,R：
(7) In the formula nS,RN of (A)RThe elements are the same as the distribution of n in the formula (4), namely nk to CN (0, sigma)R 2)
In the second stage, according to the reference [10]]The relay node R adopts an Amplification Forwarding (AF) transmission mode to transmit yS,RForm a vector AyS,R(A is the amplification factor of the relay node) and node D receives Ay transmitted through the wireless channelS,RFormed ND ×1Dimension signal vector yR,DComprises the following steps:
yR,D＝G(AyS,R)+nR,D＝G(Ahisre+Ajhjsim)+GAnS,R+nR,D (8)
(8) amplification factor in formula
nR,DN in (1)DEach element is also in phase with the element distribution of n in the formula (4)Same, nk to CN (0, sigma)D 2)
Similarly, assuming node D knows the channel matrices H and G, node D will depend on H and G and the received signal yR,DCan be detected according to the formula (6)
And recovering the bit stream
QSM-DF-MIMO
In a decoding forwarding transmission scheme (QSM-DF-MIMO) based on orthogonal spatial modulation in a multi-antenna relay network designed according to a block diagram of a multi-antenna wireless relay MIMO system shown in FIG. 1, the number of antennas configured for a source node S and a relay node R is N respectivelyS、NRModulation symbol constellation is MS-QAM and MR-QAM and having:
in the first stage of each transmission time slot, the communication mode from the source node S to the relay node R is the same as that of the QSM-AF-MIMO system, and the relay node R receives yS,RThen, for yS,RDetecting bit stream c with recovery length b according to formula (6)R。
In the second phase of each transmission slot, the relay node R recovers the bit stream c of length bRThen forming a transmitting vector x according to an orthogonal space modulation modeR。xRVia N between the relay node R and the destination node DD×NRThe dimensional channel matrix G is transmitted to a destination node D, and the node D receives NDX 1 dimensional signal yR,DComprises the following steps:
(10) n in the formulaR,DThe same as in the formula (8).
yR,DAccording to the formula (6)
And recovering a bit stream c of length bD：
Simulation experiment
The multi-antenna relay MIMO system based on orthogonal spatial modulation designed according to fig. 1 and fig. 2, here, experimental simulation was performed on the communication system under the amplify-and-forward protocol and the decode-and-forward protocol, respectively. The system is configured to: n is a radical ofS＝4,ND＝4, N R1,2, 4. Wherein, in the comparison experiment of QSM and SM, the transmission bit number is fixed, i.e.
Therefore, the SM-MIMO system needs to select proper M under the condition that the number of antennas is the same as that of the QSM-MIMO systemSMThe QAM modulation scheme satisfies the above condition.
QSM-AF-MIMO communication system
FIG. 3 is a graph showing a simulation of a QSM-AF-MIMO system. With relay node NRIncrease of (2), i.e. NREqual to 1,2 and 4, respectively, and BER equal to 10-3In time, the error code performance of the AF-MIMO system based on the orthogonal spatial modulation is about 1.5dB, 1.8dB and 2dB of gains compared with the AF-MIMO system based on the traditional spatial modulation.
QSM-DF-MIMO communication system
FIG. 4 is a graph showing a simulation of a QSM-DF-MIMO system. From the simulation curve, when BER is 10-3，NRWhen the error code performance of the QSM-DF-MIMO system is equal to 1,2 and 4 respectively, compared with a DF-MIMO system based on traditional spatial modulation, the QSM-DF-MIMO system has gains of about 0.7dB, 1.6dB and 3dB respectively.
As shown in FIG. 5, the QSM-AF-MIMO system and the QSM-DF-MIMO system have different antennas at the relay node RAnd (5) lowering an error code graph. From the simulation curve, when BER is 10-3，NRWhen the error code performance of the DF-MIMO system is 1, the error code performance of the AF-MIMO system is not greatly different; n is a radical ofRThe DF-MIMO system has about 2.1dB and 5.7dB gains in error performance compared to the AF-MIMO system, 2 and 4 respectively.
It will be appreciated by those of ordinary skill in the art that the examples described herein are intended to assist the reader in understanding the manner in which the invention is practiced, and it is to be understood that the scope of the invention is not limited to such specifically recited statements and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (1)
1. A multi-antenna wireless relay MIMO system, comprising: a source node S, a relay node R and a destination node D; both nodes S, R and R, D are transmitted using orthogonal spatial modulation systems;
the source node S, the relay node R and the destination node D are respectively provided with NS、NRAnd NDN is formed between root antenna and node S, RR×NSDimension channel matrix H, N formed between nodes R, DD×NRA dimensional channel matrix G;
H. g is respectively represented as:
(1) in the formula
hji、glkAll obey complex Gaussian distribution with mean value of 0 and variance of 1;
the quadrature spatial modulation system is provided with NtRoot transmitting antenna and NrA root receiving antenna; in each transmission period, the source is generated to a length of
Is divided into a stream of binary information bits c of length b1＝log2(M)、b2＝log2(Nt) And b3＝log2(Nt) Is/are as follows
And
in the three parts, the first part and the second part,
length b1Of the information bit stream
Constellation symbol set S ═ S in M-QAM modulation1,s2,...,sMMapping into modulation symbol s ═ s in }re+jsim(S ∈ S); length b2、b3Of the information bit stream
Respectively for use in NtSelecting the a-th transmitting antennaiRoot, ajRoot aerial emission sreAnd sim，ai,aj∈{1,2,...,Nt}; according to ai，ajIs mapped to form NtThe dimension transmit vector x has two cases:
①ai≠ajwhen the temperature of the water is higher than the set temperature,
②ai＝ajwhen the temperature of the water is higher than the set temperature,
sending vector x via Nr×NtThe dimensional channel matrix H reaches the receiving end, and the receiving end receives NrThe x 1-dimensional signal y is:
y＝Hx+n (4)
(4) in the formula
(k∈{1,2,...,Nr})，nk～CN(0,σ2)；
(4) The column vector by H in the formula can be written as:
assuming that the receiving end knows the channel matrix H, the maximum likelihood detection (ML) algorithm is adopted to detect the channel matrix H according to the H and the received vector y
And recovering a bit stream of length b
(6) In the formula | · | non-conducting phosphor2Is a Frobenius norm;
in a transmission time slot of the system, the node S, R and the node R, D both use orthogonal space modulation transmission, and the whole communication process is divided into two stages: the first stage is that the source node S sends a signal to the relay node R; in the second stage, the relay node R forwards the received signal to a destination node D according to a QSM-AF-MIMO processing mode; or in the second stage, the relay node R forwards the received signal to the destination node D according to the QSM-DF-MIMO processing mode;
QSM-AF-MIMO: in the first phase of each transmission time slot, the information bit stream of the source node S reaches the relay node R according to the transmission vector x generated by the orthogonal space modulation transmission scheme from the transmission channel to form NRX 1 dimensional yS,R：
yS,R＝haisre+jhajsim+nS,R (7)
(7) In the formula nS,RN of (A)RThe elements are the same as the element distribution of n in the formula (4), namely nk～CN(0,σR 2) In the second stage, the relay node R adopts an amplification forwarding transmission mode to transmit yS,RForm a vector AyS,RTransmitting, A is the amplification factor of the relay node, and D receives Ay transmitted by the wireless channelS,RFormed NDX 1 dimensional signal vector yR,DComprises the following steps:
yR,D＝G(AyS,R)+nR,D＝G(Ahisre+Ajhjsim)+GAnS,R+nR,D (8)
(8) amplification factor in formula
nR,DN in (1)DEach element is also distributed in the same manner as n in the formula (4), nk～CN(0,σD 2)
Similarly, assuming node D knows the channel matrices H and G, node D will depend on H and G and the received signal yR,DCan be detected according to the formula (6)
And recovering the bit stream
QSM-DF-MIMO: the number of the antennas configured for the source node S and the relay node R is N respectivelyS、NRModulation symbol constellation is MS-QAM and MR-QAM and having:
in the first stage of each transmission time slot, the communication mode from the source node S to the relay node R is the same as that of the QSM-AF-MIMO system, and the relay node R receives yS,RThen, for yS,RDetecting bit stream c with recovery length b according to formula (6)R；
In the second phase of each transmission slot, the relay node R recovers the bit stream c of length bRThen forming a transmitting vector x according to an orthogonal space modulation modeR；xRVia N between the relay node R and the destination node DD×NRThe dimensional channel matrix G is transmitted to a destination node D, and the node D receives NDX 1 dimensional signal yR,DComprises the following steps:
(10) n in the formulaR,DThe same as in formula (8);
yR,Daccording to the formula (6)
And recovering a bit stream c of length bD：
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014842.5A CN109586772B (en) | 2019-01-08 | 2019-01-08 | Multi-antenna wireless relay MIMO system and transmission method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014842.5A CN109586772B (en) | 2019-01-08 | 2019-01-08 | Multi-antenna wireless relay MIMO system and transmission method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109586772A CN109586772A (en) | 2019-04-05 |
| CN109586772B true CN109586772B (en) | 2021-02-09 |
Family
ID=65916273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910014842.5A Expired - Fee Related CN109586772B (en) | 2019-01-08 | 2019-01-08 | Multi-antenna wireless relay MIMO system and transmission method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109586772B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071893B (en) * | 2019-05-15 | 2021-04-13 | 山东大学 | Working Method of Orthogonal Spatial Modulation System Based on Signal Space Diversity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103297375A (en) * | 2013-06-05 | 2013-09-11 | 电子科技大学 | Method for spatially modulated communication with optimal phase factor combination |
| CN103731243A (en) * | 2013-12-31 | 2014-04-16 | 电子科技大学 | Power control factor selecting method in space modulating system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070031173A (en) * | 2005-09-14 | 2007-03-19 | 삼성전자주식회사 | Apparatus and method for supporting multiple links in a multihop relay cellular network |
| US9148375B2 (en) * | 2010-03-15 | 2015-09-29 | Fujitsu Limited | Method and system for implementing link adaptation based on mobility |
| CN103973627A (en) * | 2014-04-29 | 2014-08-06 | 安徽大学 | Full-rate distributed type multi-antenna bi-directional wireless cooperative relay transmission method |
| TWI648997B (en) * | 2017-03-15 | 2019-01-21 | 國立清華大學 | Joint power allocation, precoding, and decoding method and base station thereof |
| CN107994934B (en) * | 2017-11-14 | 2020-10-27 | 西北工业大学 | A Secure Transmission Method Based on Symbol Separation and Beamforming in Untrusted Relay Networks |
-
2019
- 2019-01-08 CN CN201910014842.5A patent/CN109586772B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103297375A (en) * | 2013-06-05 | 2013-09-11 | 电子科技大学 | Method for spatially modulated communication with optimal phase factor combination |
| CN103731243A (en) * | 2013-12-31 | 2014-04-16 | 电子科技大学 | Power control factor selecting method in space modulating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109586772A (en) | 2019-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1714518B1 (en) | Advanced multi-sensor processing | |
| JP5167393B2 (en) | Receiver and method for decoding received signals in a wireless communication system | |
| Fang et al. | Layered space shift keying modulation over MIMO channels | |
| Mohaisen | Increasing the minimum Euclidean distance of the complex quadrature spatial modulation | |
| CN109274410A (en) | Generalized spatial modulation system based on antenna selection and modulation method thereof | |
| CN102014085B (en) | Physical-layer network coding detection method in bidirectional MIMO relay channel | |
| CN109586772B (en) | Multi-antenna wireless relay MIMO system and transmission method thereof | |
| WO2015119031A1 (en) | Base station device, wireless communication system, and communication method | |
| CN114124303A (en) | Cooperative MIMO system detection method of LDPC cascaded space-time codes | |
| Abd El-Malek et al. | A bandwidth-efficient cognitive radio with two-path amplify-and-forward relaying | |
| CN107994934B (en) | A Secure Transmission Method Based on Symbol Separation and Beamforming in Untrusted Relay Networks | |
| Elganimi et al. | Distributed generalized spatial modulation for relay networks | |
| Cui et al. | Physical layer differential network coding for two-way relay channels | |
| CN109951266B (en) | Full-duplex bidirectional relay method based on QAM modulation | |
| Cheng et al. | Simple relay systems with BICM-ID allowing intra-link errors | |
| Gupta et al. | A stacked autoencoder-based decode-and-forward relay networks with I/Q imbalance | |
| Lee et al. | Detection with erasure in relay for decode-and-forward cooperative communications | |
| CN104363646B (en) | Relay system optimal power allocation method based on quasi-orthogonal space time-code | |
| Tijani et al. | Detection of GSM and GSSK signals with soft-output demodulators | |
| CN105163362B (en) | Using the relay selection method of the link circuit self-adapting cooperation communication system of GDC | |
| Han et al. | Optimized relaying method for wireless multi-antennas cooperative networks | |
| CN103199959B (en) | A kind of network coding method in collaboration communication | |
| CN114944978B (en) | Weighted Alamouti coding media modulation system, method, terminal equipment and storage medium | |
| Kanthimathi et al. | Energy Efficient Constellation Rotation for Multiple-Symbol Differentially Encoded Communications | |
| Arunmozhi et al. | ACHIEVABLE RATE ANALYSIS FOR FULL-DUPLEX RELAY NETWORKS WITH SPATIAL MODULATION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 Termination date: 20220108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |