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Frequency-domain adaptive filtering: a set-membership approach

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3 Author(s)
Li Guo ; Dept. of Electr. Eng., Notre Dame Univ., IN, USA ; Ekpenyong, A. ; Huang, Y.-F.

Frequency-domain adaptive filtering has been shown to have the advantage of low complexity compared to its time-domain counterpart In this paper, a frequency-domain Set-Membership Normalized Least-Mean-Square (F-SM-NLMS) algorithm is derived, and shown to have better performance (in terms of convergence and bit error rate (BER)) and less updates than frequency-domain Normalized Least-Mean-Square (F-NLMS) algorithm. We also propose an updator-sharing scheme to reduce filter complexity of frequency-domain adaptive filtering. The results show significant savings in complexity with little compromise of performance.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on  (Volume:2 )

Date of Conference:

9-12 Nov. 2003