Distributed Cyclic Delay Diversity with Decision-Feedback Differential Detection
In this paper, a non-regenerative differential distributed space-frequency coding is developed for broadband cooperative communication networks with arbitrary number of relays. Based on an elaborated symbol-to-subcarrier allocation method, the differential encoding across subcarriers is performed at the source. In the proposed scheme, a simple circular shift of the received signal is implemented at each relay, and a low-complexity linear predictionbased adaptive decision-feedback differential detection (DF-DD) is employed at the destination. This detection algorithm even can start without a priori knowledge of the channel statistics. Theoretical analysis and simulation results confirm that the proposed scheme exploits both spatial and frequency diversity.
cooperative diversity distributed cyclic delay diversity decision-feedback linear prediction
Jing Xu Shihua Zhu Zhenzhen Gao Mikko Valkama
Department of Information and Communications Engineering,Xi’an Jiaotong University, Xi’an Department of Communications Engineering Tampere University of Technology, Tampere, Finland
国际会议
北京
英文
392-397
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）