Diversity-Multiplexing Tradeoff Analysis for a Dynamic Decode and Forward Relay Protocol with MIMO Channels
Taeyoung KIM, Sun Yong Kim, Eunchul Yoon · IEICE Transactions on Communications · 2012
In this letter, the diversity-multiplexing tradeoff (DMT) function for a special half-duplex dynamic decode and forward (DDF) relay protocol using two source-antennas, two destination-antennas, and more than two relay-antennas is derived. It is shown that the performance of the DDF relay protocol can be substantially improved by increasing the relay-antenna number, but only for low multiplexing gains.