Error propagation determined iterative channel estimation with ICI mitigation for fast time-varying OFDM channels - 文章详情页

作者：

Zhang, Jie (Zhang, Jie.) | Yang, Ruizhe (Yang, Ruizhe.) | Si, Pengbo (Si, Pengbo.) | Zhang, Yanhua (Zhang, Yanhua.) (学者：张延华) | Yu, Richard (Yu, Richard.)

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EI Scopus

摘要：

The　intersubcarrier　interference　(ICI)　degrades　the　performance　of　the　pilot-aided　channel　estimation　in　fast　time-varying　orthogonal　frequency　division　multiplexing　(OFDM)　systems.　To　solve　the　error　propagation　in　joint　channel　estimation　and　data　detection　due　to　this　ICI,　a　scheme　of　error　propagation　determined　iterative　estimation　is　proposed,　where　in　the　first　iteration,　Kalman　filter　based　on　signal　to　interference　and　noise　is　designed　with　ICI　transformed　to　be　part　of　the　noise,　and　for　the　later　iterations,　a　determined　iterative　estimation　algorithm　obtains　an　optimal　output　from　all　iterations　using　the　iterative　updating　strategy.　Simulation　results　present　the　significant　improvement　in　the　performance　of　the　proposed　scheme　in　high-mobility　situation　in　comparison　with　the　existing　ones.　©,　2014,　Inst.　of　Scientific　and　Technical　Information　of　China.　All　right　reserved.

关键词：

Frequency estimation Orthogonal frequency division multiplexing Errors Channel estimation Iterative methods Time varying networks

作者机构：

[ 1 ] [Zhang, Jie]College of Electronics Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Yang, Ruizhe]College of Electronics Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Si, Pengbo]College of Electronics Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhang, Yanhua]College of Electronics Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Yu, Richard]College of Electronics Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Yu, Richard]Department of Systems and Computer Engineering, Carleton University, Ottawa; K1S 5B6, Canada

通讯作者信息：

张延华
[zhang, yanhua]college of electronics information and control engineering, beijing university of technology, beijing; 100124, china

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