SHERP

Correlation-Based Cooperative Opportunistic Beamforming in Cellular Systems

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Authors
Cho, Hee-Nam; Lee, Jin-Woo; Lee, Yong-Hwan
Issue Date
2008-08-03
Citation
APWCS 2008. IEEE VTS Asia Pacific Wireless Communications Symposium, 2008
Keywords
Cooperative transmissionopportnistic beamformingOCIspatial channel correlation
Abstract
In this paper, we consider a cooperative opportunistic
beamforming scheme that can mitigate other cell interference
(OCI) in downlink cellular environments. By exploiting the
spatial channel correlation of adjacent cells, a random beam is
cooperatively generated to statistically avoid the OCI from
adjacent cells. Selecting its user for the proposed random beam
in an opportunistic manner, the proposed scheme can
simultaneously achieve both the multi-user diversity (MUD) gain
and OCI avoidance gain. Finally, the performance of the
proposed scheme is verified by computer simulation. The
simulation results show that the proposed scheme can noticeably
improve the spectral efficiency and the outage probability of
users near the cell boundary compared to conventional
opportunistic beamforming scheme.
Language
English
URI
http://www.mobile.ecei.tohoku.ac.jp/APWCS2008/main.html

http://hdl.handle.net/10371/7544
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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