MIMO Relaying: Distributed TAS/MRC in Nakagami-M Fading

The authors develop a unified framework for the Symbol Error Rate (SER) of distributed Transmit Antenna Selection with receiver Maximal-Ratio Combining (TAS/MRC) in Multiple-Input Multiple-Output (MIMO) relay networks. They focus on non-regenerative relaying with NS, NR, and ND antennas at the source, relay, and destination, respectively. They consider the general fading scenario of Nakagami-m fading with distinct m fading parameters in the source-to-relay and the relay-to-destination links. They present new analytical expressions for the statistics of the end-to-end Signal-to-Noise Ratio (SNR).