Blind complex signal detection for FIR-MIMO system based on ε approximation algorithm
Jiashan Tang · 2011
In order to improve the transmission performance of QPSK complex signal,a new method of blind detection based on e-approximation algorithm is proposed.By this method,the blind detection problem of a QPSK signal sequence can be transformed,with matrix transformation,into a binary constrained quadratic programming problem,which can be solved by using the e-approximation algorithm.Simulation results show that,compared with the classical subspace algorithm for the FIR-MIMO channel with possible common zeros,the proposed one is of more effective performance and larger applicable area.