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학술지 Outage Probability of Zero Forcing Precoded Scheduling System for Multiple Input Multiple Output Broadcast Transmission
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저자
이동훈, 강현덕, 정병장
발행일
201112
출처
IEEE Communications Letters, v.15 no.12, pp.1344-1346
ISSN
1089-7798
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LCOMM.2011.101811.111667
협약과제
11PR3300, 10GHz 이하 대역에서 Dynamic Spectrum Access를 위한 상호 공존성(Coexistence) 기준 연구, 정병장
초록
In this paper, we investigate an error performance issue of a multiple-input multiple-output (MIMO) broadcast system with zero-forcing (ZF) precoder. We propose a ZF-precoded scheduling system for MIMO broadcast transmission which selects a user set with the maximum effective signal to noise ratio (SNR) through feedback information. The tight closed-form expression of the proposed scheduling system for outage probability is derived. We also present asymptotic analysis to quantify diversity order and SNR gain. This analysis results show that the proposed scheduling system provides error performance improvement by diversity order gain, which comes from multi-user diversity (MUD) over the conventional ZF-precoding system. © 2006 IEEE.
키워드
diversity order, multi-user diversity (MUD), Multiple-input multiple-output (MIMO), outage probability, scheduling, SNR gain, zero-forcing (ZF) percoder
KSP 제안 키워드
Asymptotic analysis, Closed-form expressions, Diversity Order, Error performance, Feedback information, Multiple input multiple output(MIMO), Multiuser diversity, Outage probability(OP), Signal noise ratio(SNR), Signal-to-Noise, Zero forcing(ZF)