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| A Cooperative Transmit Diversity System Based on DSTBC-MC-CDMA in Wireless Networks |
| Zhao Xian-jing①; Zheng Bao-yu①; Fu Hong-liang②; Qian Xiao-cong① |
| ①Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecomm, Nanjing 210003,China; ②Depart of Communication and Information Engineering, Nanjing University of Posts and Telecomm, Nanjing 210003, China |
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Abstract A novel system based on cooperative Distributed Space-Time Block Code and Multi-Carrier Code Division Multiple Access (DSTBC-MC-CDMA) is presented which works well in multi-user wireless networks with single-antenna user in frequency selective fading channel. And an analytical model for describing the symbol decoding error between the interusers is established to analyze the qualitative influence to the bit error rate (BER) performance of the system. Then the simulation is complimented to versify the analytic result above, and the diagrams also show that the BER performance of DSTBC-MC-CDMA outgoes MC-CDMA with distinctive gains.
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Received: 05 December 2005
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2007, Vol. 29 
