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학술대회 Backward Compatible MIMO Techniques in a Massive MIMO Test-Bed for Long Term Evolution (LTE) Mobile Systems
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저자
원석호, 조세영, 신재욱
발행일
201507
출처
International Conference on Advanced Communication Technology (ICACT) 2015, pp.711-715
DOI
https://dx.doi.org/10.1109/ICACT.2015.7224888
협약과제
15MI2100, (통합)초연결 스마트 모바일 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
초록
This paper proposes a virtual antenna mapping method for backward compatible massive or large-scale antenna multiple input multiple output (MIMO) base stations that provide communication services for legacy user equipment (UE) that can recognize only two or four base station antennas. The proposed method adopts and improves the omnidirectional beamforming that has been pioneered in previous works. The computer simulation results provide four important findings; the most important is that the actual number of virtually mapped physical antennas is inversely proportional to the transmit power per antenna.
키워드
large array antennas, massive MIMO, omnidirectional beamforming, precoding techniques, virtual antenna techniques
KSP 제안 키워드
Backward Compatible, Communication services, Computer simulation(MC and MD), Long term Evolution(LTE), Mapping method, Massive MIMO test-bed, Mobile system, Multiple input multiple output(MIMO), Omnidirectional beamforming, Transmit power, User equipment(UE)