IEEE Access (Jan 2018)

Cluster-Sparse Proportionate NLMS Algorithm With the Hybrid Norm Constraint

  • Yingsong Li,
  • Zhengxiong Jiang,
  • Zhan Jin,
  • Xiao Han,
  • Jingwei Yin

DOI
https://doi.org/10.1109/ACCESS.2018.2867561
Journal volume & issue
Vol. 6
pp. 47794 – 47803

Abstract

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In this paper, an enhanced proportionate normalized least mean square (PNLMS) algorithm with the hybrid l2,0-norm constraint is proposed for block-sparse signal processing. The proposed algorithm penalizes a mixed l2,0-norm on the PNLMS to fully exploit the sparsity and handle block-sparse signals, which is called the l2,0 norm constrained PNLMS (L20-PNLMS). The L20-PNLMS is well derived and carefully analyzed. Various experiments have been constructed to verify the effectiveness of the devised L20-PNLMS. The experimental results demonstrate that the devised L20-PNLMS performs better than the previous PNLMS algorithms do in block sparse signal processing.

Keywords