文章基本信息

标题：Performance Bounds for Bit-Interleaved Space-Time Coded Modulation with Iterative Decoding based Cooperative Network
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作者：Khan, Imran ; Tanoli, Shujaat Ali Khan ; Rajatheva, Nandana 等
期刊名称：Journal of Communications
印刷版ISSN：1796-2021
出版年度：2010
卷号：5
期号：4
页码：297-306
DOI：10.4304/jcm.5.4.297-306
语种：English
出版社：ACADEMY PUBLISHER
摘要：We propose and evaluate a cooperative system based on bit-interleaved space-time coded modulation (BI-STCM) with the iterative decoding, referred as CO-BISTCM system. We present an analytical approach to evaluate the performance over frequency flat-fading. The channel coefficients are modeled as Nakagami-m distributed, which covers a wide range of multi-path fading distribution for different values of m-fading parameter. Our analysis is focused on space-time coded cooperative (STC-CO) and orthogonal space-time block coded cooperative (OSTBC-CO) protocols for the transmission through both fixed-gain amplify-and-forward (AF) and decode-and-forward (DF) user cooperation with maximal ratio combining (MRC) at the destination. The closed-form moment-generating function (MGF) of the branch metric is derived. We derive an expression for bit-error rate (BER) of CO-BISTCM system using M-ary phase shift keying (M-PSK). The derived expression also shows the diversity order of the system. Finally, theoretical and simulation results are shown and they seem to agree well.
关键词：Bit-Interleaved Space-Time Coded Modulation; Cooperative Networks; Space-Time Coding; Nakagami-m distribution; Performance Analysis.