Invited Paper: SNR Analysis of Differential Modulation for Distributed Massive MIMO Systems

This paper focuses on non-coherent detection in distributed massive MIMO systems and characterizes the performance in terms of the received signal-to-noise ratio (SNR). We derive closed-form solutions for the cumulative distributive functions (CDF) of the received SNR for cooperative and non-cooperative differential detection. Outage probabilities (calculated through the CDFs of received SNR) offer a simpler alternative to symbol error probability (SEP) expressions, making them valuable in system control procedures. Moreover, the diversity order of both non-cooperative and cooperative systems is derived by characterizing their high SNR behavior.