TY - GEN
T1 - An efficient and effective variable step size NLMS algorithm
AU - Takekawa, Hideki
AU - Shimamura, Tetsuya
AU - Jimaa, Shihab
PY - 2008
Y1 - 2008
N2 - Using the least-mean-square (LMS) and the normalized LMS (NLMS) algorithms, the adaptive filter usually results in a trade-off between the convergence speed and adaptation precision. Recently, in order to resolve this problem, several variable step size NLMS (VSS-NLMS) algorithms that provide faster convergence than the LMS and NLMS have been proposed. This paper presents a new VSS-NLMS algorithm that is simple, but possesses, good characteristics. In the proposed algorithm, the input power and error signals are used to design the step size parameter at each iteration. Simulation results demonstrate that in the scenario of channel equalization, the proposed algorithm accomplishes faster start-up and gives better precision than the conventional algorithms.
AB - Using the least-mean-square (LMS) and the normalized LMS (NLMS) algorithms, the adaptive filter usually results in a trade-off between the convergence speed and adaptation precision. Recently, in order to resolve this problem, several variable step size NLMS (VSS-NLMS) algorithms that provide faster convergence than the LMS and NLMS have been proposed. This paper presents a new VSS-NLMS algorithm that is simple, but possesses, good characteristics. In the proposed algorithm, the input power and error signals are used to design the step size parameter at each iteration. Simulation results demonstrate that in the scenario of channel equalization, the proposed algorithm accomplishes faster start-up and gives better precision than the conventional algorithms.
KW - Adaptive filters
KW - Channel equalization
KW - LMS
KW - Variable step size
UR - http://www.scopus.com/inward/record.url?scp=70349664006&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2008.5074702
DO - 10.1109/ACSSC.2008.5074702
M3 - Conference contribution
AN - SCOPUS:70349664006
SN - 9781424429417
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1640
EP - 1643
BT - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
T2 - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Y2 - 26 October 2008 through 29 October 2008
ER -