A criterion based adaptive RSIC scheme in underwater communication

• 来源期刊: 系统工程与电子技术（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: ELECTRONICS TECHNOLOGY
• 页码范围: 408-416
• 页数: 9页
• 语种: 英文
• DOI: 10.23919/JSEE.2021.000034

摘要

Multi-access interference (MAI) is the main source limiting the capacity and quality of the multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system which fulfills the demand of high-speed transmission rate and high quality of service for future underwater acoustic (UWA) communication. Therefore, multi-user detection (MUD) is needed at the receiver of the MIMO-OFDM system to suppress the ef-fect of MAI. In this research, MUD is achieved by using a cri-terion based adaptive recursive successive interference cancel-lation (RSIC) scheme at the receiver of a MIMO-OFDM system whose transceiver model in underwater communication is imple-mented by using the Bellhop simulation system. The proposed scheme estimates and eliminates the MAI through user signal detection and subtraction from received signals at the receiver of the MIMO-OFDM system in underwater environment. The bit error rate (BER) performance of the proposed scheme is ana-lyzed by using weight filtering and weight selection criteria. By Matlab simulation, it is shown that the BER performance of the proposed scheme outperforms the conventional matched filter (MF) detector, the adaptive successive interference cancellation (SIC) scheme, and the adaptive RSIC scheme in the UWA network.