%0 Journal Article
%A JIANG Wei
%A WANG Ru
%A XIAO Hai-lin
%A YAN Xiao-juan
%T Pre-Coding Design of Asynchronous Interference Suppression for Multi-Base Station Cooperative
%D 2017
%R 10.13190/j.jbupt.2016-192
%J Journal of Beijing University of Posts and Telecommunications
%P 86-91
%V 40
%N 6
%X In multi-base station cooperative systems, the distances are different between the base stations and the users which will result in asynchronous interference of users received signals. To suppress asynchronous interference, a pre-coding design for muti-base station cooperative communication is proposed based on particle swarm optimization algorithm. The pre-coding design converts the pre-coding matrixes into the position parameters matrixes of the optimization particle, updates the optimization position parameters by intelligent learning among the particles, and adjusts the fitness function to maximize the signal to interference plus noise ratio of user. Thus, the pre-coding design can be used to suppress asynchronous interference of users received signals. Numerical simulations show that, compared with the improved block diagonalization algorithm, the proposed algorithm the proposed algorithm will increase the sum rate of system 2~7 bit/s with a good convergence.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2016-192