The research for the receiving technique of iterative joint

摘要

Aiming at the problem that in traditional MIMO-OFDM receiver the channel decoding, channel estimation and signal detection are independent and the error rate is relatively high, this paper proposes an iterative joint receiving scheme, improve it, and gets a modified iterative joint receiving technique scheme. The theoretical research and the simulation result indicated: compared with the iterative joint receiving scheme, in the same signal to noise ratio, the performance of the modified iterative joint receiving technique scheme has improved about one order of magnitude higher. In the case of same error rate, the new scheme also has improved more than 2dB. So the modified iterative joint receiving technique scheme can improve the performance of the MIMO-OFDM system effectively.