基于正交空时分组码的差分空间调制方案

doi:10.11959/j.issn.1000-436x.2017189

通信学报 ›› 2017, Vol. 38 ›› Issue (9): 148-158.doi: 10.11959/j.issn.1000-436x.2017189

基于正交空时分组码的差分空间调制方案

王志成,陈志刚,王磊

西安交通大学电子与信息工程学院，陕西西安710049

修回日期:2017-06-28 出版日期:2017-09-01 发布日期:2017-10-18
作者简介:王志成（1983-），男，山西大同人，西安交通大学硕士生，主要研究方向为无线通信中的空间调制和多天线传输技术等。|陈志刚（1977-），男，湖北武汉人，西安交通大学讲师、硕士生导师，主要研究方向为宽带无线通信信号处理、室内无线定位技术、无线通信物理层技术等。|王磊（1977-），女，陕西西安人，西安交通大学讲师、硕士生导师，主要研究方向为无线通信领域的 MIMO 多天线传输技术、空时编码技术、中继及协作通信技术等。
基金资助:
华为创新研究计划基金资助项目(YB2015070059)

Differential spatial modulation scheme based on orthogonal space-time block coded

Zhi-cheng WANG,Zhi-gang CHEN,Lei WANG

School of Electronics and Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China

Revised:2017-06-28 Online:2017-09-01 Published:2017-10-18
Supported by:
Huawei Innovation Research Program(YB2015070059)

摘要/Abstract

摘要：

针对常规差分空间调制（DSM,differential spatial modulation）方法没有发射分集功能以及接收译码复杂度高的问题，提出一种基于正交空时分组码的差分空间调制（OSTBC-DSM,differential spatial modulation scheme based on orthogonal space-time block code）方案。设计了2个矩阵：空间调制矩阵和符号矩阵，前者通过设置其中非零元素的位置来激活不同的发射天线，后者采用正交空时分组码（OSTBC）作为基本码块来构造符号矩阵。所提方案具有可获得满发射分集、频谱效率高等优点，同时支持线性最大似然（ML,maximum likelihood）译码。仿真结果表明，所提方案在不同的频谱效率下均获得了比其他几种方案更好的误比特率（BER,bit error rate）性能。

关键词: 差分空间调制, 正交空时分组码, 发射分集, 线性译码

Abstract:

Focusing on the problem that differential spatial modulation (DSM) couldn’t obtain transmit diversity and has high decoding complexity,a new differential spatial modulation scheme based on the orthogonal space-time block code was proposed and the proposed scheme is called OSTBC-DSM.There were two matrices in this scheme:the spatial modulation matrix and the symbol matrix.The former was aimed to activate different transmit antennas by setting the position of nonzero elements,and the latter structured symbolic matrix by using orthogonal space-time block codes (OSTBC) as the basic code block.The proposed scheme could obtain full transmit diversity and higher spectral efficiency compared with the conventional DSM schemes.Moreover,the OSTBC-DSM supported linear maximum likelihood (ML) decoding.The simulation results show that under different spectral efficiencies,the proposed OSTBC-DSM scheme has better bit error rate (BER) performance than other schemes.

Key words: differential spatial modulation, orthogonal space-time block code, transmit diversity, linear decoding

中图分类号:

TN929.53

王志成,陈志刚,王磊. 基于正交空时分组码的差分空间调制方案[J]. 通信学报, 2017, 38(9): 148-158.

Zhi-cheng WANG,Zhi-gang CHEN,Lei WANG. Differential spatial modulation scheme based on orthogonal space-time block coded[J]. Journal on Communications, 2017, 38(9): 148-158.

图/表 7

图1

表1

不同差分空间调制方案频谱效率的比较"

方案	每时隙激活天线数	发射分集	频谱效率	BPSK		QPSK		8PSK
方案	每时隙激活天线数	发射分集	频谱效率	N _t=2	N _t=4	N_t=2	N _t=4	N _t=2	N _t=4
DSM	1	1	$\frac{lb {⌊ (N_{t}!) ⌋}_{2^{P}}}{N_{t}} + lb M$	1.5	2.0	2.5	3.0	3.5	4.0
CS-DSM	1	2	$\frac{lb (Q' Q)}{N_{t}}$	1(L=2)	—	1.5(L=4)	—	2(L=8)	—
FE-DSM	1	N_t	$\frac{lb (M N_{t})}{N_{t}}$	—	0.75	—	1.00	—	1.25
FE-DSM-DR	1	2	$\frac{h lb (M g) + lb (h)}{N_{t}}$	1.00	1.25	1.50	1.75	2.00	2.25
OSTBC-DSM	1	2	$\frac{lb (L Q)}{N_{t}}$	1.50	2.25	2.00	2.75	2.50	3.25
OSTBC-DSM-RC	1	N_t	$\frac{lb (L Q)}{N_{t}}$	—	0.75	—	1.00	—	1.25

表1

图2

表2

图3

图4

图5

参考文献 16

[1]	MESLEH R Y , HAAS H , SINANOVIC S ,et al. Spatial modulation[J]. IEEE Transactions on Vehicular Technology, 2008,57(4): 2228-2241.
[2]	BASAR E , AYGOLU U , PANYIRIC E ,et al. Space-time block coded spatial modulation[J]. IEEE Transactions on Communications, 2011,59(3): 823-832.
[3]	WANG L , CHEN Z . Spatially modulated diagonal space time codes[J]. IEEE Communications Letters, 2015,19(7): 1245-1248.
[4]	LI X , WANG L . High rate space-time block coded spatial modulation with cyclic structure[J]. IEEE Communications Letters, 2014,18(4): 532-535.
[5]	LE M T , NGO V D , MAI H A ,et al. High-rate space-time block coded spatial modulation[C]// International Conference on Advanced Technologies for Communications. 2012: 278-282.
[6]	YOUNIS A , RENZO M D , MESLEH R ,et al. Sphere decoding for spatial modulation[C]// IEEE International Conference on Communications. 2011: 1-6.
[7]	TANG Q , XIAO Y , YANG P ,et al. A new low-complexity near-ML detection algorithm for spatial modulation[J]. IEEE Wireless Communications Letters, 2013,2(1): 90-93.
[8]	MEN H , JIN M . A low-complexity ML detection algorithm for spatial modulation systems with,PSK constellation[J]. IEEE Communications Letters, 2014,18(8): 1375-1378.
[9]	BIAN Y , WEN M , CHENG X ,et al. A differential scheme for spatial modulation[C]// Global Communications Conference. 2013: 3925-3930.
[10]	WEN M , CHENG X , BIAN Y ,et al. A low-complexity near-ML differential spatial modulation detector[J]. IEEE Signal Processing Letters, 2015,22(11): 1834-1838.
[11]	BIAN Y , CHENG X , WEN M ,et al. Differential spatial modulation[J]. IEEE Transactions on Vehicular Technology, 2015,64(7): 3262-3268.
[12]	MARTIN P A . Differential spatial modulation for APSK in timevarying fading channels[J]. IEEE Communications Letters, 2015,19(7): 1261-1264.
[13]	ISHIKSWS N , SUGIURA S . Unified differential spatial modulation[J]. IEEE Wireless Communication Letters, 2014,3(4): 337-340.
[14]	RAJASHEKAR R , ISHIKAWA N , SUGIURA S ,et al. Full-diversity dispersion matrices from algebraic field extensions for differential spatial modulation[J]. IEEE Transactions on Vehicular Technology, 2015: 385-394.
[15]	ZHANG W , YIN Q , DENG H . Differential full diversity spatial modulation and its performance analysis with two transmit antennas[J]. IEEE Communications Letters, 2015,19(4): 677-680.
[16]	XIAO L , YANG P , LEI X ,et al. A low-complexity detection scheme for differential spatial modulation[J]. IEEE Communications Letters, 2015,19(9): 1516-1519.

调制方式	发射天线数	DSM		OSTBC-DSM
调制方式	发射天线数	频谱效率	复杂度（ML）	频谱效率	复杂度（线性译码）
BPSK	N_t=2	1.5	192	1.5	—
	N_t=4	2	12 288	2.25	16 384
QPSK	N_t=2	2.5	768	2	—
	N_t=4	3	196 608	2.75	28 672
8PSK	N_t=2	3.5	3 072	2.5	—
	N_t=4	4	3 145 728	3.25	53 248
16PSK	N_t=2	4.5	12 288	3	—
	N_t=4	5	50 331 648	3.75	102 400
32PSK	N_t=2	5.5	49 152	3.5	—
	N_t=4	6	8.053×10⁹	4.25	200 704

基于正交空时分组码的差分空间调制方案

Differential spatial modulation scheme based on orthogonal space-time block coded

在线阅读

PDF下载

可视化

摘要/Abstract

引用本文

使用本文

图/表 7

参考文献 16

相关文章 6

Metrics

推荐阅读 0

[1]	赵辉, 李进, 马薇雯, 邓文超, 张天骐, 刘媛妮. 大气联合效应下的光差分空间调制性能分析[J]. 通信学报, 2023, 44(6): 57-69.
[2]	安泽亮, 张天骐, 马宝泽, 邓盼, 徐雨晴. 基于一维CNN的多入多出OSTBC信号协作调制识别[J]. 通信学报, 2021, 42(7): 84-94.
[3]	李峰,王磊,陈志刚. 双向中继系统中基于对角空时码的空间调制传输算法[J]. 通信学报, 2015, 36(9): 244-251.
[4]	赵知劲,陈林,王海泉,沈雷. 基于独立分量分析的实正交空时分组码盲识别[J]. 通信学报, 2012, 33(11): 1-7.
[5]	成文婧,刘伟,丁丁,魏急波. 基于预处理的单符号可译全分集准正交空时分组码设计[J]. 通信学报, 2010, 31(8): 84-90.
[6]	白宾锋,蔡跃明,徐信. 发射分集OFDM系统中的一种维纳LMS信道估计和跟踪算法[J]. 通信学报, 2006, 27(7): 66-72.