Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation

doi:10.3788/AOS201939.1206002

IR > 计算机与通信学院

	Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation
	Cao Minghua1 ; Song Lihua1 ; Wang Huiqin1 ; Wang Daobin2
	2019-12-10
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	02532239
卷号	39 期号:12
摘要	Traditional optical spatial modulation has low transmission rate and laser utilization and requires the number of lasers to be an integer power of two. To address these problems, we propose a generalized optical spatial modulation (GOSM) scheme suitable for wireless optical communication, which is combined with pulse position modulation and can simultaneously activate multiple lasers. Aiming at the high complexity of the maximum likehood decoding (ML) algorithm, we propose a signal detection algorithm based on ordered-block minimum mean square error (OB-MMSE). A balance factor is utilized to comprehensively consider the error performance and computational complexity. The proposed OB-MMSE algorithm is improved,and the weight is modified according to the characteristics of the GOSM signal. Moreover, an expression for the threshold selection in the lognormal turbulence channel is derived. Finally, the Monte Carlo simulation is utilized to verify the performance of the proposed solution, and the bit error rate and computational complexity of the proposed OB-MMSE algorithm are compared with those of classical ML and MMSE algorithms. Simulation results demonstrate that the proposed OB-MMSE algorithm can effectively reduce the computational complexity at the expense of a slight bit error rate reduction compared to ML algorithm. Furthermore, the proposed OB-MMSE algorithm can reduce the bit error rate compared to the MMSE algorithm. The proposed solution is applicable to systems with less receivers than transmitters at the cost of a slight increase in the computational complexity. © 2019, Chinese Lasers Press. All right reserved.
关键词	Bit error rate Computational complexity Error detection Genetic algorithms Mean square error Monte Carlo methods Optical communication Optical signal processing Signal detection Turbulence Log-normal Minimum mean square error algorithms Minimum mean square errors Signal detection algorithm Spatial modulations Threshold selection Transmission rates Wireless optical communication
DOI	10.3788/AOS201939.1206002
收录类别	EI ; ESCI
语种	中文
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000620338200029
出版者	Chinese Optical Society
EI入藏号	20200408064451
EI主题词	Modulation
EI分类号	716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.1 Computer Programming - 922.2 Mathematical Statistics
来源库	Compendex
分类代码	716.1 Information Theory and Signal Processing - 717.1 Optical Communication Systems - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 723.1 Computer Programming - 922.2 Mathematical Statistics
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/113860
专题	计算机与通信学院理学院校医院
通讯作者	Wang Huiqin
作者单位	1.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Cao Minghua,Song Lihua,Wang Huiqin,et al. Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation[J]. Guangxue Xuebao/Acta Optica Sinica,2019,39(12).
APA	Cao Minghua,Song Lihua,Wang Huiqin,&Wang Daobin.(2019).Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation.Guangxue Xuebao/Acta Optica Sinica,39(12).
MLA	Cao Minghua,et al."Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation".Guangxue Xuebao/Acta Optica Sinica 39.12(2019).