Title :
Optimal designs for linear MIMO transceivers using directional derivative
Author :
Dai, Jiejian ; Ye, Zhen
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
fDate :
9/1/2009 12:00:00 AM
Abstract :
Optimal designs for minimising the combination of symbol estimation errors subject to lp-norm constraint are investigated. Instead of considering each constraint in a separate way, the authors develop a unifying framework to obtain the optimal solution by employing a directional derivative method. The sum or peak power constraint turns out to be the case of p=1 or prarrrarr. Simulation results demonstrate the effectiveness of the proposed algorithm. Moreover, based on directional derivative, the authors show that the minimisation of the determinant of the minimum mean-square error (MMSE) matrix and the maximisation of mutual information are equivalent criteria.
Keywords :
MIMO communication; least mean squares methods; transceivers; directional derivative; linear MIMO transceivers; minimum mean-square error matrix; symbol estimation errors;
Journal_Title :
Communications, IET
DOI :
10.1049/iet-com.2008.0181