標題: Cochannel interference rejection in multipath channels
作者: Su, YT
Jeng, LD
Ueng, FB
電信工程研究所
Institute of Communications Engineering
關鍵字: spread spectrum;spread spectrum communications;interference suppression;adaptive filter;multipath fading
公開日期: 1-Dec-1997
摘要: In addition to additive thermal noise, a received direct-sequence spread spectrum (DS/SS) signal may suffer from intersymbol interference (ISI) and interference caused by cochannel narrowband users or other narrowband radio frequency interference (RFI). This paper presents a workable solution for removing narrowband interference (NBI) and reducing ISI or inter-chip interference (ICI) when the communication channel can be modeled as an FIR filter and the NBI comes from multiple CW tones, an AR-modeled Gaussian process, or a BPSK signal. Unlike earlier solutions, the proposed scheme is capable of performing the functions of NBI-rejection, ISI/ICI suppression and data detection (code despreading) simultaneously. It is easy to implement and, more importantly, it yields lower bit error rate (BER) and smaller mean squared error (MSE).
URI: http://hdl.handle.net/11536/147
ISSN: 0916-8516
期刊: IEICE TRANSACTIONS ON COMMUNICATIONS
Volume: E80B
Issue: 12
起始頁: 1797
結束頁: 1804
Appears in Collections:Articles