Turbo equalization for MIMO-OFDM systems with inter-site CoMP

Yu Lang Wong*, Wen-Rong Wu, Ying Pei Hsu

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

Coordinated multi-point (CoMP) processing is a key technique in next generation mobile communications. It can effectively solve the interference problem encountered in cell edges. To conduct the processing, however, base stations need to exchange users' informations, yielding a communication overhead for the backhaul. This paper considers inter-site uplink CoMP processing for multi-input-multi-output orthogonal-frequency-division-multiplexing (MIMO-OFDM) systems. We first propose using the turbo equalization technique to improve the performance. In our scheme, the receiver consists of a soft MIMO equalizer and a soft channel decoder. The iteration is conducted between the equalizer and the decoder. With the inclusion of the exchanged informations in the iteration, the performance of the turbo equalization can be further improved. We then propose various exchanging strategies and find a good trade-off between performance gain and the required overhead. Compared with the optimum scheme, the proposed strategies can reduce the overhead significantly while the performance loss is small.

原文English
主出版物標題2012 1st IEEE International Conference on Communications in China, ICCC 2012
頁面642-646
頁數5
DOIs
出版狀態Published - 28 十二月 2012
事件2012 1st IEEE International Conference on Communications in China, ICCC 2012 - Beijing, China
持續時間: 15 八月 201217 八月 2012

出版系列

名字2012 1st IEEE International Conference on Communications in China, ICCC 2012

Conference

Conference2012 1st IEEE International Conference on Communications in China, ICCC 2012
國家/地區China
城市Beijing
期間15/08/1217/08/12

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