Coverage probability of cellular networks using interference alignment under imperfect CSI

作     者：Raoul F. Guiazon Kai-Kit Wong Michael Fitch 

作者机构：Department of Electronic and Electrical Engineering University College London WCIE 7JE UK BTMobility Group Martlesham Heath Suffolk IP5 3RE UK 

出 版 物：《Digital Communications and Networks》 (数字通信与网络（英文版）)

年 卷 期：2016年第2卷第4期

页      面：162-166页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：Engineering and Physical Sciences Research Council  EPSRC  (EP/K504610/1) 

主　　题：Interference alignment Beamforming Coverage probability Channel errors Stochastic geometry 

摘      要：Interference alignment （IA） is well understood to approach the capacity of interference channels, and believed to be crucial in cellular networks in which the ability to control and exploit interference is key. However, the achievable performance of IA in cellular networks depends on the quality of channel state information （CSI） and how effective IA is in practical settings is not known. This paper studies the use of IA to mitigate inter-cell interference of cellular networks under imperfect CSI conditions. Our analysis is based on stochastic geometry where the structure of the base station （BS） locations is considered by a Poisson point process （PPP）. Our main contribution is the coverage probability of the network and simulation results confirm the accuracy.