This work was supported in part by the National Fundamental Research Program(Grant No.G1998030406);the National Natural Science Foundation of China(Grant No.69972020);by the State Key Lab on Microwave and Digital Communications,Department of Electronics Engineering,Tsinghua University.
To solve the contradiction between convergence rate and steady-state error in least mean square (LMS) algorithm, basing on independence assumption, this paper proposes and proves the optimal step-size theorem from the...