有限反馈的多小区协作多模传输方法

doi:10.3969/j.issn.0255-8297.2010.05.003

Journal of Applied Sciences ›› 2010, Vol. 28 ›› Issue (5): 457-462.doi: 10.3969/j.issn.0255-8297.2010.05.003

• Communication Engineering • Previous Articles Next Articles

Coordinated Multi-cell Multi-mode Transmission Scheme with Limited Feedback

SUN Dong, QIU Ling

Department of Electronic Engineering and Information Science, University of Science and Technology of China,
Hefei 230027, China

Received:2010-06-21 Revised:2010-09-13 Online:2010-09-26 Published:2010-09-26

Abstract

Abstract:

Coordinated multi-cell multi-antenna transmission can effectively mitigate inter-cell interference in cellular MIMO systems, thus improving cell edge throughput. However, the performance heavily depends on the channel state information and cooperation among multiple base stations. In this paper, we investigate
the impact of limited feedback on the multi-cell local joint precoding based on 2-cell cooperative transmission. According to the location of cell edge users, we propose a multi-mode transmission method. Simulation results show that it can significantly enhance cell edge throughput.

Key words: MIMO,, multi-cell, , limited feedback,, cell edge throughput

CLC Number:

TN929.5

SUN Dong, QIU Ling. Coordinated Multi-cell Multi-mode Transmission Scheme with Limited Feedback [J]. Journal of Applied Sciences, 2010, 28(5): 457-462.

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Coordinated Multi-cell Multi-mode Transmission Scheme with Limited Feedback

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