Graph representation for joint channel estimation and symbol detection

Sau-Hsuan Wu*, Urbashi Mitra, C. C Jay Kuo

*Corresponding author for this work

研究成果: Paper同行評審

10 引文 斯高帕斯(Scopus)

摘要

A unified structure is proposed for joint channel tracking and symbol detection in multipath fading channels. Based on the expectation maximization (EM) algorithm, a group of recursive stochastic filters is derived for blind channel estimation, using the maximum likelihood and minimum mean squared error criteria. In conjunction with the BCJR algorithm, it is shown that the recursive procedure for joint channel estimation and maximum a posteriori symbol detection can be represented as a message-passing scheme on a factor graph. The graphical model not only provides a generalized implementation architecture for existing training-based schemes, it also greatly reduces the complexity of existing algorithms for blind channel tracking.

原文English
頁面2329-2333
頁數5
出版狀態Published - 1 十二月 2004
事件GLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, United States
持續時間: 29 十一月 20043 十二月 2004

Conference

ConferenceGLOBECOM'04 - IEEE Global Telecommunications Conference
國家United States
城市Dallas, TX
期間29/11/043/12/04

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