Performance of parallel detection scheme for V-BLAST system

Multiple input multiple output (MIMO) systems can provide high data rate wireless services in a rich scattering environment. Among them, the V-BLAST is one of the most promising systems. However, traditional detection algorithm of V-BLAST needs much time to perform linear combination ing and successive symbol cancellation. The more the number of transmit antennas, the more time delay. In this paper, we investigate the use of parallel detection schemes for V-BLAST architecture to overcome the disadvantage. In flat Rayleigh channel situations, simulation results show that these two proposed schemes can get the similar performance with less complexity and less time delay.