Achievable Degrees of Freedom of MIMO Two-Way Relay Interference Channel with Delayed CSIT

被引：0
作者：
Li, Qingyun [1 ]
Wu, Gang [1 ]
Li, Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu, Peoples R China
来源：
FOURTH INTERNATIONAL CONFERENCE ON WIRELESS AND OPTICAL COMMUNICATIONS | 2016年 / 9902卷
关键词：
Degrees of freedom; channel state information; delay; closed-form expression; interference alignment; MULTIPLE-ACCESS CHANNEL; REGION; ALIGNMENT;
D O I：
10.1117/12.2262333
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, assuming each node has delayed channel state information at the transmitter (CSIT), we investigate the achievable degrees of freedom (DOF) of MIMO two-way relay interference channel in frequency division duplex (FDD) systems, where there are K user pairs (i.e., 2K users) and each user in a user pair exchanges messages with the other user in the same user pair simultaneously via an intermediate relay. We propose a two-stage transmission scheme and derive the closed-form expressions for its achievable DOF.
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页数：7
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