Opportunistic beamforming using orthonormal beam set selection in multiuser MIMO system = 다중 사용자 다중 입출력 시스템에서 직교 랜덤빔 선택을 이용한 오퍼튜니스틱 빔포밍

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For finite number of users, the performance degradation occurs due to multiuser interference in conventional scheme. To improve the system performance, orthonormal beam set selection using Q mini-time slots is considered in this thesis. Among the Q sets of orthonormal random beams, the best one is selected and then data are transmitted using these random beams. We determine the number of mini-time slots by optimizing the trade-off between the selection diversity gain and reduction of data time slot. We also analyze the throughput of the proposed scheme. Simulation results show that the proposed scheme improves the throughput performance and the optimum number of Q is two.
Advisors
Kim, Hyung-Myungresearcher김형명researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2008
Identifier
297154/325007  / 020063059
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2008.2, [ iv, 37 p. ]

Keywords

opportunsitc; beamforming; orthonormal; mini-time slot; 빔포밍; 랜덤빔; 선택; 미니타임슬랏; opportunsitc; beamforming; orthonormal; mini-time slot; 빔포밍; 랜덤빔; 선택; 미니타임슬랏

URI
http://hdl.handle.net/10203/38537
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=297154&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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