Narrowband Interference Cancellation for Index-Modulated TDS-OFDM in Underwater Acoustic Communications

被引：0
|
作者：
Zhang, Xiaohui [1 ]
Wang, Jintao [1 ]
机构：
[1] Tsinghua Univ, BNRist, Beijing, Peoples R China
来源：
WUWNET'19: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON UNDERWATER NETWORKS & SYSTEMS | 2019年
关键词：
underwater acoustic communications; TDS-OFDM; index modulation; narrowband interference cancellation;
D O I：
10.1145/3366486.3366521
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this extended abstract, the narrowband interference (NBI) cancellation problem is introduced for dual-PN-padded TDS-OFDM signal in underwater acoustic communications. PN sequence is used in differential measuring of interference and payload reconstruction. A compressed sensing-based algorithm termed initialization enhanced sparsity adaptive subspace pursuit (IESASP) is proposed to estimate the NBI differential. Index-modulated OFDM (IM-OFDM) signal is considered for performance evaluation. Simulation results show that the proposed NBI cancellation method can effectively enhance BER performance especially for IM-OFDM.
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页数：2
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