Differential Spatial Modulated OFDM in Underwater Acoustic Communications (Invited Paper)

被引：0

作者：

Li, Zhi ^{[1
]}

Cheng, Xiang ^{[1
]}

Wen, Miaowen ^{[2
]}

Yang, Liuqing ^{[3
]}

Jiao, Bingli ^{[1
]}

机构：

[1] Peking Univ, Sch Elect Engn & Comp Sci, Beijing, Peoples R China

[2] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou, Guangdong, Peoples R China

[3] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA

来源：

2014 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC) | 2014年

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Underwater acoustic (UWA) communications; differential spatial modulation (DSM); orthogonal frequency division multiplexing (OFDM); CHANNEL ESTIMATION; PERFORMANCE;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Underwater acoustic (UWA) communication channel features relatively fast time variation. Spatial modulation (SM) combined with orthogonal frequency division multiplexing (OFDM) transmission can be applied to UWA communications. Channel estimation may induce a performance penalty for SM since only one transmit antenna is activated to carry pilots. Recently, a differential solution has been proposed for SM, which dispenses with channel estimation and restricts the signal-to-noise (SNR) loss to a relatively low level under quasi-static channel conditions. Hence, the application of differential SM (DSM) to OFDM UWA communications is of particular interest. Simulation results show that when applied to UWA communications, DSM has an obvious performance enhancement in bit error rate (BER) over SM.

引用

页码：913 / 918

页数：6

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