PERFORMANCE OF MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) WIRELESS SYSTEMS

摘要

MIMO wireless systems are studied in this paper with particular emphasis on the achieved performance in terms of achieved capacity, in different operational environments. First, the definition of a MIMO system is presented along with the, performance advantages. Then, Shannon's extended capacity formula is discussed and a simplified expression is derived by applying linear transformations. The paper concentrates on the capacity of Rayleigh channel but also studies the case where the signals are submitted to fading correlation. Finally, the stochastic quantities used to describe the capacity performance and, detailed simulation results are presented.