On Multi-Frequency Channel Interference Alignment of 3 Channels and 4 Users  

作　　者：DU Guanglong ZOU Weixia ZHOU Zheng 

机构地区：[1]Key Lab of Universal Wireless Communications,MOE,Beijing University of Posts and Telecommunications [2]State Key Lab.of Millimeter Waves,Southeast University

出　　处：《China Communications》2016年第1期22-32,共11页中国通信（英文版）

基　　金：supported by the 863 Program of China under Grant No.2015AA01A703;the Fundamental Research Funds for the Central Universities under Grant No.2014ZD03-02;the National Natural Science Foundation of China(NSFC,No.61171104,61571055);fund of State Key Laboratory of Millimeter Wave(SKL of MMW,No.K201501)

摘　　要：This paper explores the multi-frequency independent channel interference alignment(MFC-IA) system of 3 channels and4 users,and single data stream transmit,i.e.(3×3,1)~4 system.We derive the analytic solution for(3×3,1)~4 MFC-IA system.Based on the analytic solution,an optimization problem is proposed aim at the optimal IA solution.Then based on such a math model,we propose a simulated annealing(SA) algorithm to search optimal IA solution.The simulation results show that the simulated annealing IA algorithm has a better sum rate performance than iterative maximize signal to interference plus noise ratio(Max-SINR) algorithm.This result can be extended to single data stream multi-antenna IA system with 3 antennas and4 users.This paper explores the multi-frequency independent channel interference alignment（MFC-IA） system of 3 channels and4 users,and single data stream transmit,i.e.（3×3,1）4 system.We derive the analytic solution for（3×3,1）4 MFC-IA system.Based on the analytic solution,an optimization problem is proposed aim at the optimal IA solution.Then based on such a math model,we propose a simulated annealing（SA） algorithm to search optimal IA solution.The simulation results show that the simulated annealing IA algorithm has a better sum rate performance than iterative maximize signal to interference plus noise ratio（Max-SINR） algorithm.This result can be extended to single data stream multi-antenna IA system with 3 antennas and4 users.

关 键 词：communication and information system interference alignment multi-frequency channel analytic solution simulated annealing 

分 类 号：TN911.4[电子电信—通信与信息系统] TP311.52[电子电信—信息与通信工程]