Space Time Coding in OFDM based on TCM

Chen Hongwei; Ruan Qiaoling

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Space Time Coding in OFDM based on TCM

Chen Hongwei *,Ruan Qiaoling

School of Information Engineering school of Wuhan University of Science and Technology

*Correspondence author

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Funding: none

Opened online: 4 July 2007

Accepted by: none

Citation: Chen Hongwei,Ruan Qiaoling.Space Time Coding in OFDM based on TCM[OL]. [ 4 July 2007] http://en.paper.edu.cn/en_releasepaper/content/13854

Based on the principle of Trellis Code Modulation（TCM）, we suppose a new scheme and Space Time Coding technology in OFDM system. Space time block coding (STBC) is applied as and inner coding to ensure the spatial diversity and TCM as the out coding to obtain coding gain. Simulation is carried on SUI-3 channel model, the method of channel estimation is also improved as well. The results show that the bit error rate (BER) can be great reduce by this improved hybrid scheme, and greater coding gain can be obtained without increase the bandwidth.

Keywords:TCM，OFDM，STBC

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