Sparse Recovery Algorithms for Pilot Assisted MIMO OFDM Channel Estimation

Chenhao QI  Lenan WU  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.5   pp.1313-1316
Publication Date: 2010/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.1313
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MIMO,  OFDM,  channel estimation,  

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In this letter, the sparse recovery algorithm orthogonal matching pursuit (OMP) and subspace pursuit (SP) are applied for MIMO OFDM channel estimation. A new algorithm named SOMP is proposed, which combines the advantage of OMP and SP. Simulation results based on 3GPP spatial channel model (SCM) demonstrate that SOMP performs better than OMP and SP in terms of normalized mean square error (NMSE).