earticle

영어

Power line carrier communication, with the widespread application, broadband multi-input multi-output system will have a co-channel interference, the interference is in addition to asynchronous pulse noise and pulse cycle factors influencing the multi-input multi-output (MIMO) system's largest broadband power line carrier. Aiming at this problem, this paper, by using multiple input multiple output channel state information, the sender with the method of block diagonalization, eliminate the interference between the channel, so as to improve the capacity of broadband power line carrier system, at the same time reduce the bit error rate of the system. Through the simulation results and analysis can show that the proposed block diagonalization pre-coding method effectively eliminates the common channel interference, improve the drying ratio, thus improve the maximum mutual information of the system and reduce the bit error performance of the system.