Achievable Degrees of Freedom of the K-user Interference Channel with Partial Cooperation

被引：0
|
作者：
Naguib, Ahmed A. [1 ]
Elsayed, Khaled [1 ]
Nafie, Mohammed [2 ]
机构：
[1] Cairo Univ, EECE Dept, Cairo, Egypt
[2] Nile Univ, WINC Lab, Giza, Egypt
来源：
2011 CONFERENCE RECORD OF THE FORTY-FIFTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS (ASILOMAR) | 2011年
关键词：
Degrees of freedom; interference alignment; cooperation;
D O I：
暂无
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 consider the K-user interference channel with partial cooperation, where a strict subset of the K users cooperate. For the K-user interference channel with cooperating subsets of length K, the outer bound of the total degrees of freedom is KM/(M + 1) In this paper, we propose a signal space-based interference alignment scheme that proves the achievability of these degrees of freedom for the case K = M + 2. The proposed scheme consists of a design for the transmit precoding matrices and a processing algorithm which we call the Successive Interference Alignment (SIA) algorithm. The decoder of each message uses the SIA algorithm to process the signals received by the M cooperating receivers in order to get the maximum available degrees of freedom.
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收藏
页码：1363 / 1367
页数：5
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