SHERP

Multi-Sector Beamforming with MMSE Receiver for Spatially Correlated Channel

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Authors
Yeom, Jae-Heung; Lee, Yong-Hwan
Issue Date
2008-06
Citation
14th European Wireless Conference 2008
Keywords
multi-sectorbeamforminginterferencecorrelation
Abstract
The use of statistical eigen-beamforming is effective in
spatially correlated fading environments, but it may suffer from
interference near the sector boundary when applied to the
downlink with universal frequency reuse. This interference effect
may not sufficiently be handled by a minimum mean square
error (MMSE) receiver unless a sufficient number of receive
antennas are employed. In this paper, we consider the use of
multi-sector beamforming that cooperates with a neighboring
sector in the same cell to mitigate this interference problem. By
exploiting long-term channel state information (CSI), the
proposed scheme can obtain transmit array gain without the use
of instantaneous CSI, while avoiding interference from the
adjacent cooperating sector. The performance of the proposed
scheme is analyzed with combined use of an MMSE receiver and
verified by computer simulation.
Language
English
URI
http://www.ew2008.org

http://hdl.handle.net/10371/7584
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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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