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학술지 Analysis of Single-RF MIMO Receiver with Beam-Switching Antenna
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저자
곽동혁, 손일수, 이승환
발행일
201508
출처
ETRI Journal, v.37 no.4, pp.647-656
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.15.0114.0618
협약과제
15MI2100, (통합)초연결 스마트 모바일 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
초록
This paper proposes a single-RF MIMO receiver that adopts a beam-switching antenna (BSA) instead of a conventional array antenna. The beauty of the proposed single-RF MIMO receiver with BSA is that it can be deployed in a very small physical space while achieving a full spatial multiplexing gain. Our analysis has revealed that the use of a BSA inevitably results in the spectrum spreading effect at the RF output, which in turn causes an SNR decrease and adjacent channel interference (ACI). Two novel receiver techniques are proposed to mitigate the issues of redundant sub-band suppression and ACI avoidance. Numerical analysis results verify the performance improvement from the proposed receiver techniques.
키워드
Beam-switching antenna, Compact MIMO, MIMO, Parasitic antenna element, Single-RF MIMO receiver, Spread spectrum
KSP 제안 키워드
Adjacent Channel Interference, Array antenna, Beam switching, MIMO receiver, Numerical Analysis, Parasitic antenna, Physical space, Spatial multiplexing gain, Spectrum spreading, antenna elements, performance improvement