A Leakage-Aware CS/CB Scheme for Heterogeneous CoMP Networks with Layered Limited Feedback

Bijun PENG
Wei CHEN
Yu ZHANG
Ming LEI
Zhigang CAO
Sheng ZHOU

Publication
IEICE TRANSACTIONS on Communications   Vol.E96-B    No.1    pp.363-366
Publication Date: 2013/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.363
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
coordinated multi-point transmission,  coordinated scheduling/coordinated beamforming,  limited feedback,  heterogeneous network,  

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Summary: 
A leakage-aware Coordinated Scheduling/Coordinated Beamforming (CS/CB) scheme for heterogeneous networks with layered limited feedback is proposed. In particular, all pico cells cooperatively select an optimal beamforming vector for the macro cell within a CoMP cluster so as to minimizing leakage power from the macro cell. Simulations show that the proposed scheme outperforms the conventional non-CoMP scheme with perfect channel state information at teansmitter (CSIT). Furthermore, the feedback amount and scheduler complexity is decreased greatly.