Random antenna selection to mitigate the interferences from closely located users = 근접한 사용자간의 간섭을 줄이기 위한 랜덤 안테나 선택 기법

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Since millimeter (mm)-wave suffer significant path loss than microwave, beamforming which can obtain array gain is required. In this thesis, we consider analog beamforming with phase shifter supporting multiuser. Also, one phase shifter at each antenna is constraint in our system to reduce the hardware complexity. In multiuser analog beamforming system, management of interference from closely located users is important because interference from farther located users can be suppressed by using of beamforming. We propose beamforming with random antenna selection to mitigate interference from nearby users. Also, low rate spread code is adopted for reliable communication in case of main beams overlapping. In this thesis, we compare fixed and random antenna selections and analyze the interference and bit error rate (BER) with respects to user`s positions. Simulation and analysis indicate that beamforming with random antenna selections is advantageous when mitigating interference from closely located users.
Advisors
Park, Hyun-Cheolresearcher박현철
Description
한국과학기술원 : 전기및전자공학과,
Publisher
한국과학기술원
Issue Date
2014
Identifier
569277/325007  / 020123579
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 2014.2, [ iii, 32 p. ]

Keywords

antenna selection; 빔형성기법; beamforming; 안테나 선택

URI
http://hdl.handle.net/10203/196805
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=569277&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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