Realistic transmitter vs receiver cooperation in wireless sensor networks with non ideal carrier synchronization

This paper addresses a mathematical formulation and performance evaluation of a wireless sensor network allowed to cooperate at the transmitter, receiver or both sides. The main point is that we consider imperfect carrier synchronization and evaluate how this realistic assumption degrades the performance of also realistic cooperative strategies: we have selected V-BLAST as a representative receiver cooperation strategy, Tomlinson-Harashima for the transmitter cooperation and the SVD decomposition (with optimum power allocation among the modes) for the full cooperative case. If theoretical analysis provided by other papers recommend the use of just transmitter cooperation because receiver and full cooperation do not provide significant gain, on our hand we will show that receiver cooperation is more robust and closes the optimum performance under non ideal conditions.