상세정보
학술지
A Nonlinear Transceiver Architecture for Overloaded Multiuser MIMO Interference Channels
- 저자
- 오영석, 유희정, 이용훈, 성영철
- 발행일
- 201202
- 출처
- IEEE Transactions on Communications, v.60 no.4, pp.946-951
- ISSN
- 0090-6778
- 출판사
- IEEE
- 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.
- KSP 제안 키워드
- Degrees of freedom(DOF), Linear beamforming, MIMO interference channels, Multiuser detection, Numerical results, Overloaded MIMO, Rate saturation, interference signal, linear processing, multiuser MIMO