Channel and signal parameters estimations for block turbo coded FH-SS systems under jamming environments

Li Der Jeng*, Chun Liang Chen, Tsan Ming Wu, Chung-Hsuan Wang

*此作品的通信作者

研究成果: Conference article同行評審

摘要

In this paper, we propose a near maximum likelihood (ML) estimator of channel and signal parameters for block turbo coded slow frequency-hopped spread spectrum (SFH-SS) systems under jamming environments. The estimated parameters and the jamming states are employed in the soft-in/soft-out (SISO) decoding, while two types of jammers, partial-band noise jammer (PBNJ) and band multitone jammer (BMTJ) are considered. Our approach is to determine the jamming state for each hop and refine the desired parameters from the proposed estimator to obtain the optimum detection. Besides, the optimum decoding metric is derived as well. Simulation results show that our estimator needs hundreds of samples to be converged. The system performance with estimated channel parameters and perfect channel parameters under two types of jamming environments has also been illustrated in terms of signal-to-noise (SNR) ratio.

原文English
頁(從 - 到)2297-2301
頁數5
期刊IEEE Vehicular Technology Conference
60
發行號4
DOIs
出版狀態Published - 1 12月 2004
事件2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
持續時間: 26 9月 200429 9月 2004

指紋

深入研究「Channel and signal parameters estimations for block turbo coded FH-SS systems under jamming environments」主題。共同形成了獨特的指紋。

引用此