标题:MULTI-ARY SOFT OUTPUT VITERBI DECODING ALGORITHM FOR UNITARY SPACE-TIME SYMBOL-BASED TURBO CODE
作者:Zhang, Dapeng; Liu, Ju; Niu, Qiangjun; Ji, Hui
通讯作者:Zhang, DP
作者机构:[Zhang, Dapeng; Liu, Ju; Ji, Hui] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.; [Zhang, Dapeng] Southeast Univ, State Key 更多
会议名称:International Conference on Communication Software and Networks
会议日期:FEB 27-28, 2009
来源:PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON COMMUNICATION SOFTWARE AND NETWORKS
出版年:2009
页码:754-+
DOI:10.1109/ICCSN.2009.85
关键词:MIMO; multi-ary turbo code; USTM; UST symbol; SOVA
摘要:UST symbol-based turbo code has recently been proposed which can reduce the system complexity and calculation amount compared with bit-wise concatenation scheme. However, the corresponding MAP decoding algorithm still makes hardware unbearable and later its simplified versions, Max-Log-MAP and Log-MAP algorithms, appeared. In this paper, we propose a multi-ary SOVA decoding algorithm for UST symbol-based turbo code. Using our UST symbol-based SOVA, soft output information from the prior iteration can be accepted as the a priori information for current iteration. Notably, the experimental results show that our algorithm can achieve close performance to Max-Log-MAP and Log-MAP algorithms with lower complexity. The performance of the SOVA and that of MAP algorithm are almost the same at a BER of 10-5, and is even better for a higher BER.
收录类别:CPCI-S
资源类型:会议论文
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