OCI mitigated coordinated beamforming for multi-user MIMO broadcast channel멀티유저 마이모 다운링크 채널에서 다른 셀의 영향을 완화해주는 CBF 기술 연구

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Coordinated Beamforming is a jointly optimized scheme of transmit beamformer and receive combiner for Mu-MIMO broadcast channel. The conventional CBF, however, induces to decrease the throughput of users at the edge of the cell since it does not consider other-cell interference (OCI). In this paper, we propose a newly designed beamformer and receive combiner utilizing the only statistical property of interference-plus-noise to mitigate OCI. Our proposed schemes significantly improve sum rate performance in the presence of OCI, furthermore, the proposed MMSE-CBF achieves a near-optimum sum-rate. Numerical results show that the proposed CBF provides better sum rate performance compared with a conventional CBF, and performs close to the sum rate of the CBF without OCI when the number of receive antennas increases.
Advisors
Kang, Joon-Hyukresearcher강준혁researcher
Description
한국과학기술원 : 정보통신공학과,
Publisher
한국과학기술원
Issue Date
2010
Identifier
419075/325007  / 020084218
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 정보통신공학과, 2010.2, [ vi, 30 p. ]

Keywords

CBF; Beamforming; 마이모; 멀티유저; Mu-MIMO

URI
http://hdl.handle.net/10203/40098
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=419075&flag=dissertation
Appears in Collection
ICE-Theses_Master(석사논문)
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