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Backhaul Assignment Design for MISO Downlinks with Multi-Cell Cooperation

Fengfeng SHI, Wei XU, Jiaheng WANG, Chunming ZHAO

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Summary :

Multi-cell cooperation is a promising technique to mitigate inter-cell interference arising from universal frequency reuse in cellular networks. Sharing channel state information (CSI) in neighboring cells can help enhance the overall system capacity at the cost of high feedback burden. In this paper, an asymmetric CSI feedback strategy is proposed for multi-cell cooperation beamforming. In order to improve the overall system performance, we optimize the limited feedback bandwidth based on the average received power from both serving and neighboring cells. Simulation results show that the proposed strategy utilizes the limited feedback bandwidth more efficiently, thereby achieving a higher sum rate.

Publication
IEICE TRANSACTIONS on Communications Vol.E97-B No.6 pp.1166-1174
Publication Date
2014/06/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E97.B.1166
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

Authors

Fengfeng SHI
  Southeast University
Wei XU
  Southeast University
Jiaheng WANG
  Southeast University
Chunming ZHAO
  Southeast University

Keyword