Low-Complexity Non-Coherent Detection for Spatial Modulation OFDM Systems

摘要：

　　This letter describes a differential modulation scheme for spatial modulation orthogonal frequency division multiplexing (SM OFDM),aiming at developing low-complexity non-coherent detection without channel state information (CSI) at the receiver.By employing differential phase-shift keying (DPSK) between nonzero subcarrier at each transmit antenna,the proposed method can work with any number of transmit and receive antennas to realize high bandwidth efficiency.Additionally,the reference symbols at each transmit antenna are initialized at particular subcarriers,which are utilized to estimate the antenna indices at the receiver.Simulation results show that the proposed scheme gives rise to reasonable performance penalty in comparison to coherent SM OFDM.

关键词： multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) spatial modulation(SM) differential modulation.

作者: Lixia Xiao Xu He Yue Xiao Ping Yang Shaoqian Li

作者单位: National Key Laboratory of Science and Technology on Communications Chengdu 610054, China National Key Laboratory of Science and Technology on Communications Chengdu 610054, China;National M

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 589-593

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）