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학술지 A Nonlinear Transceiver Architecture for Overloaded Multiuser MIMO Interference Channels
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저자
오영석, 유희정, 이용훈, 성영철
발행일
201202
출처
IEEE Transactions on Communications, v.60 no.4, pp.946-951
ISSN
0090-6778
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TCOMM.2012.022912.110130
협약과제
11MI1800, IEEE 802.11 VHT 초고속 무선랜 무선전송 연구, 이석규
초록
A new transceiver architecture for overloaded MIMO interference channels is proposed to fix the rate saturation problem of purely linear beamforming in this case. The proposed scheme is based on a mixture of linear beamforming and multi-user detection. It is shown that non-trivial degrees of freedom can be achieved by the proposed mixed scheme properly dividing the interference signals for linear processing and multiuser detection, and the achievable degrees of freedom of the proposed scheme are obtained. Numerical results show that the proposed scheme outperforms linear beamforming in overloaded MIMO interference channels. © 2012 IEEE.
키워드
MIMO interference channels, multi-user decoding, Multi-user MIMO, overloaded systems, successive interference cancellation
KSP 제안 키워드
Degrees of freedom(DOF), Linear beamforming, MIMO interference channels, Multiuser detection, Numerical results, Overloaded MIMO, Rate saturation, Successive Interference Cancellation, interference signal, linear processing, multiuser MIMO