Pilot symbol initiated sub-optimal sequence estimation algorithm for QAM signals

被引：3
|
作者：
Lee, JH [1 ]
Kim, SC
Han, JC
机构：
[1] Seoul Natl Univ, Sch Elect Engn, Inst New Media & Commun, Seoul, South Korea
[2] Myongji Univ, Dept Informat & Commun, Yongin, South Korea
来源：
ELECTRONICS LETTERS | 2002年 / 38卷 / 17期
关键词：
D O I：
10.1049/el:20020693
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A sub-optimal decision directed decoding algorithm based on the expectation-maximisation algorithm is proposed. The algorithm performs iterative sequence estimation assuming quadrature amplitude modulation signals in a frequency non-selective fading channel. The iteration begins using periodically inserted pilot symbols, and it was observed that the algorithm converges mostly within two iterations. The bit error rate performances of the proposed algorithm are evaluated using computer simulation. The results show that the proposed algorithm performs better than conventional schemes.
引用
收藏
页码：972 / 974
页数：3
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