TY - GEN
T1 - Improved adaptive sparse channel estimation based on the least mean square algorithm
AU - Gui, Guan
AU - Peng, Wei
AU - Adachi, Fumiyuki
PY - 2013
Y1 - 2013
N2 - Least mean square (LMS) based adaptive algorithms have been attracted much attention since their low computational complexity and robust recovery capability. To exploit the channel sparsity, LMS-based adaptive sparse channel estimation methods, e.g., zero-attracting LMS (ZA-LMS), reweighted zero-attracting LMS (RZA-LMS) and Lp -norm sparse LMS (LP-LMS), have also been proposed. To take full advantage of channel sparsity, in this paper, we propose several improved adaptive sparse channel estimation methods using Lp -norm normalized LMS (LP-NLMS) and L0 -norm normalized LMS (L0-NLMS). Comparing with previous methods, effectiveness of the proposed methods is confirmed by computer simulations.
AB - Least mean square (LMS) based adaptive algorithms have been attracted much attention since their low computational complexity and robust recovery capability. To exploit the channel sparsity, LMS-based adaptive sparse channel estimation methods, e.g., zero-attracting LMS (ZA-LMS), reweighted zero-attracting LMS (RZA-LMS) and Lp -norm sparse LMS (LP-LMS), have also been proposed. To take full advantage of channel sparsity, in this paper, we propose several improved adaptive sparse channel estimation methods using Lp -norm normalized LMS (LP-NLMS) and L0 -norm normalized LMS (L0-NLMS). Comparing with previous methods, effectiveness of the proposed methods is confirmed by computer simulations.
KW - adaptive sparse channel estimation
KW - compressive sensing (CS)
KW - least mean square (LMS)
KW - normalized LMS (NLMS)
KW - sparse penalty
UR - http://www.scopus.com/inward/record.url?scp=84881591077&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881591077&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2013.6555058
DO - 10.1109/WCNC.2013.6555058
M3 - Conference contribution
AN - SCOPUS:84881591077
SN - 9781467359399
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 3105
EP - 3109
BT - 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
T2 - 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Y2 - 7 April 2013 through 10 April 2013
ER -