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arXiv 2008.00815eess.SP
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基于可重构智能表面的差分反射调制通信

Differential Reflecting Modulation for Reconfigurable Intelligent Surface Based Communications

Shuaishuai Guo, Jia Ye, Peng Zhang, Haixia Zhang, Mohamed-Slim Alouini

摘要:

基于可重构智能表面(RIS)的通信已成为一种新的通信模式。本文提出了一种用于基于RIS的通信系统的差分反射调制(DRM)方案。在DRM中,信息比特由发射信号的反射图案和相位的激活排列联合携带,导致DRM可以在发射机、RIS或接收机处不需要任何信道状态信息(CSI)的情况下工作。也就是说,DRM可以释放传输过程中复杂且耗费资源的信道估计。仿真结果表明,所提出的DRM支付一个可接受的SNR损失相比,非差分调制相干检测。

英文摘要:

Reconfigurable intelligent surface (RIS) based communications have emerged as a new paradigm. This letter proposes a differential reflecting modulation (DRM) scheme for RIS based communication systems. In DRM, information bits are jointly carried by the activation permutations of the reflecting patterns and the phases of the transmitted signals, leading to that DRM can work without any channel state information (CSI) at the transmitter, RIS or receiver. In other words, DRM can release the intricate and resource-consuming channel estimation in the transmission process. Simulation results show that the proposed DRM pays an acceptable SNR penalty compared to non-differential modulation with coherent detection.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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