상세정보
학술지
Multicell Downlink Beamforming With Limited Backhaul Signaling
- 저자
- 김유진, 양현종, 좌혜경
- 발행일
- 201810
- 출처
- IEEE Access, v.6, pp.64122-64130
- ISSN
- 2169-3536
- 출판사
- IEEE
- 협약과제
- 17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
- 초록
- A downlink beamforming design is proposed in multicell multi-input single-output downlink networks with limited backhaul signaling. In the proposed scheme, the beamforming vector at each base station (BS) is designed to minimize the sum of its weighted generating interference with local channel state information and the aid of information exchange between the BSs. The generating-interference weight coefficients are designed in pursuit of increasing the sum rate. Simulation results show that the proposed scheme outperforms the existing scheme in the mid-to-high signal-to-noise ratio regime even with much reduced amount of information exchange via backhaul.
- KSP 제안 키워드
- Channel State Information(CSI), High signal-to-noise ratio, Information Exchange, Limited backhaul, Multi-input, Multiple-input single-output(MISO), Signal noise ratio(SNR), Sum rate, Weight coefficients, base station(BS), beamforming design