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- W2350752636 abstract "In this paper,the performance of multiuser MIMO system based on imperfect channel state information(CSI) and antenna selection is investigated.By system modeling and performance analysis,utilizing mathematical transformations and conditional probability density functions,the accurate expression of average bit error rate(BER) for the system with imperfect feedback information is derived.This expression can evaluate the impact of feedback delay on the system performance,and it includes the BER expression under perfect CSI as a special case.In order to simplify the integration calculation of the accurate theoretical expression,an approximate BER expression is also derived by using the approximation of complementary error function.As a result,a simple closed-form expression is obtained.Computer simulation shows that the derived accurate and approximate theoretical expressions can accord with the corresponding simulation results.Moreover,the system in the presence of imperfect CSI only has slight BER performance degradation for the normalized time delay less than 0.01." @default.
- W2350752636 created "2016-06-24" @default.
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- W2350752636 date "2013-01-01" @default.
- W2350752636 modified "2023-09-28" @default.
- W2350752636 title "Performance Analysis of Multiuser MIMO System based on Imperfect Channel State Information and Antenna Selection" @default.
- W2350752636 hasPublicationYear "2013" @default.
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