ACHIEVABLE DEGREES-OF-FREEDOM OF (N, K)-USER INTERFERENCE CHANNEL WITH DISTRIBUTED BEAMFORMING

被引：0
|
作者：
Chae, Seong Ho [1 ]
Jung, Bang Chul [2 ]
Choi, Wan [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Daejeon, South Korea
[2] Gyeongsang Natl Univ, Dept Informat & Commun Engn, Jinju, South Korea
来源：
2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP) | 2015年
关键词：
Degrees of freedom; distributed user scheduling; transmit/receive beamforming; user scaling law; interference channel;
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A distributed beamforming technique at each user pair (transmitter-receiver) is proposed in a (n, K)-user interference channel where K user pairs are allowed to simultaneously communicate with each other among n user pairs (K << n). Each transmitter sends a single spatial stream and each user pair minimizes generating interference to the scheduled receivers and the received interference from the scheduled transmitters via transmit beamforming and receive beamforming, respectively. We analyze scaling of n to achieve K degrees-of-freedom (DoF) with high probability via the proposed beamforming technique. This results show that the proposed beamforming reduces the required network size (i.e., scaling of n) compared to the previous results on (n, K)-user interference channel.
引用
收藏
页码：3048 / 3052
页数：5
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