JOURNAL ARTICLE

Cooperative Limited Feedback Precoding in Interference-Limited MIMO Networks

Jungmin YoonJong-Ho LeeYoungwoo KwakJeongsik ChoiSeong-Cheol Kim

Year: 2011 Journal:   The Journal of Korean Institute of Communications and Information Sciences Vol: 36 (5C)Pages: 276-285   Publisher: THE KOREAN INSTITUTE OF COMMUNICATIONS AND INFORMATION SCIENCES (KICS)

Abstract

본 논문에서는 한정된 자원에 여러 개의 연결이 혼재해 있는 상황에서 협력적으로 제한적인 피드백을 사용하여 성능을 개선시킬 수 있는 방법을 제안한다. 제안하는 방법은, 코드북에 있는 각 프리코더의 성능 우선순위에 따라 가중치를 부여하여 각 연결로부터 피드백 받은 가중치 데이터로부터 가중치의 합이 가장 높은 프리코더를 선택하는 방식이다. 시뮬레이션 결과 기존의 비협력적 방식에 비해 전송도 뿐만 아니라 시스템의 안정성에 관여되는 프리코더 선택의 수렴 정도 또한 향상됨을 알 수 있다. In this paper, we propose new cooperative precoder selection technique for interference limited MIMO networks. Our proposed method gives weighting to precoders in the codebook according to each precoder's performance priority. By applying our proposed method to precoder selection sequence, performance of entire system can be improved in terms of sumrate, stability, and feedback rate.

Keywords:
Codebook Precoding MIMO Weighting Interference (communication) Selection (genetic algorithm) Computer science Stability (learning theory) Zero-forcing precoding Control theory (sociology) Algorithm Channel (broadcasting) Telecommunications Artificial intelligence Machine learning

Metrics

1
Cited By
0.24
FWCI (Field Weighted Citation Impact)
7
Refs
0.59
Citation Normalized Percentile
Is in top 1%
Is in top 10%

Citation History

Topics

Advanced MIMO Systems Optimization
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Cooperative Communication and Network Coding
Physical Sciences →  Computer Science →  Computer Networks and Communications
Telecommunications and Broadcasting Technologies
Physical Sciences →  Engineering →  Media Technology

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