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학술지 Effect of Least Square Channel Estimation Errors on Achievable Rate in MIMO Fading Channels
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저자
이승준
발행일
200711
출처
IEEE Communications Letters, v.11 no.11, pp.862-864
ISSN
1089-7798
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LCOMM.2007.071150
초록
The achievable rate of a multiple input multiple output (MIMO) fading channel is derived in the form of generalized mutual information (GMI) when least square (LS) channel estimation is employed to gain channel state information at receivers. The derived average GMI of a channel with LS channel estimation is compared with the known average GMI (equivalently, the lower bound on the ergodic capacity) of a channel with linear minimum mean square error channel estimation. An effective approximation method is also proposed to ease the numerical calculation of the average GMI of a MIMO channel with LS channel estimation. © 2007 IEEE.
키워드
Generalized mutual information, Least square channel estimation, Multiple input multiple output
KSP 제안 키워드
Achievable rate, Approximation methods, Channel State Information(CSI), Channel estimation(CE), Ergodic capacity, LS channel estimation, Least Squares(LS), Linear minimum mean square error, Lower bound, MIMO channel, Minimum Mean Square Error(MMSE)