An Inter Symbol Interference Estimation and Cancellation Scheme for Asynchronous Distributed Differential Space-Time Code

作者：Ji Yuchu^*; Han Changcai; Wang Anguo; Ma Ning

来源：IEEE Communications Letters, 2013, 17(10): 1920-1923.

DOI：10.1109/LCOMM.2013.082713.131253

• Asynchronous cooperative communication
• distributed differential space-time code (DDSTC)
• inter symbol interference (ISI) estimation

In cooperative communication systems, as poor synchronization of different relays may induce inter symbol interference (ISI) and lead to substantial performance degradation, it is necessary to cancel ISI. In this letter, a simple ISI estimation and cancellation scheme is proposed for asynchronous distributed differential space-time code, where the destination node does not need to know the channel state information (CSI) from the source node to different relays or the CSI from the relays to the destination node. Simulation results show that the proposed scheme can cancel ISI effectively and obtain good bit error rate performance.

• 出版日期2013-10
• 单位天津大学