A Novel Relay-Aided Successive Aligned Interference Cancellation for X channels with Blind Transmitters

被引:0
|
作者
Shin, Wonjae [1 ]
Lee, Namyoon [2 ]
Yang, Heecheol [1 ]
Lee, Jungwoo [1 ]
机构
[1] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 151744, South Korea
[2] POSTECH, Dept Elect Engn, Pohang 790784, Gyungbuk, South Korea
来源
2016 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) | 2016年
关键词
WIRELESS NETWORKS; ACHIEVABLE DEGREES; FREEDOM; ALIGNMENT;
D O I
10.1109/GLOCOM.2016.7841529
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we propose a novel relay-aided successive aligned interference cancellation (RaSAIC) method for a 2 x K X channel with L full-duplex relays. The key idea behind the RaSAIC is to apply a cooperative relays' precoding technique that aligns interference signals at unintended receivers while creating an Alamouti structure for the desired signals. With the proposed cooperative relay transmission technique, it is shown that both the optimal degrees of freedom gain of 2K/K+1 and the diversity gain of two are achievable for constant channels when the numbers of relays' antennas are enough to satisfy the derived feasibility conditions without requiring channel state information (CSI) at transmitters but with global and local CSI at relays and receivers, respectively.
引用
收藏
页数:7
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