论文标题
差分反映可重新配置的基于智能表面通信的调制
Differential Reflecting Modulation for Reconfigurable Intelligent Surface Based Communications
论文作者
论文摘要
基于可重构的智能表面（RIS）通信已成为新的范式。这封信提出了针对基于RIS的通信系统的差异反射调制（DRM）方案。在DRM中，信息位是由反射模式的激活排列和发射信号的相位共同携带的，导致该DRM可以在发射机，RIS或接收器上没有任何通道状态信息（CSI）的情况下工作。换句话说，DRM可以在传输过程中释放复杂和资源消耗的通道估计。仿真结果表明，与非不同调制调制相比，提出的DRM对可接受的SNR罚款进行了可接受的惩罚。
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.
