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APPROXIMATED MEDIUM SQUARE ERROR MINIMIZATION-BASED CHANNEL ESTIMATE IN A MOBILE COMMUNICATION SYSTEM
APPROXIMATED MEDIUM SQUARE ERROR MINIMIZATION-BASED CHANNEL ESTIMATE IN A MOBILE COMMUNICATION SYSTEM
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机译:移动通信系统中基于最小二乘误差最小化的信道估计
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摘要
Channel estimation is performed in a mobile communications system. In order to reduce the computational load, and thereby decrease power consumption, a polynomial expression is used to approximate a Minimum Mean Squared Error (MMSE) based channel estimator with respect to Doppler and SIR variations. A lookup table may be used to supply coefficients for the polynomial expression. In another aspect of the invention, coefficients for the polynomial expression may, themselves, be approximated by a second polynomial expression.
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