MIMO NLMS-ZF data detection approach for WCDMA based HSDPA systems

  • Authors:

  • I-Tai Lu;Enoch Lu

  • Affiliations:

  • Department of Electrical and Computer Engineering, Polytechnic Institute of NYU, Brooklyn, NY;Department of Electrical and Computer Engineering, Polytechnic Institute of NYU, Brooklyn, NY

  • Venue:
  • SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
  • Year:
  • 2009

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Abstract

This paper details the nontrivial extension of the novel Normalized Least Mean Square Zero Forcing (NLMS-ZF) data detection algorithm from Single Input Single Output (SISO) to Multiple Inputs Multiple Outputs (MIMO) for the High Speed Data Packet Access (HSDPA) enabled Wideband Code Division Multiple Access (WCDMA) system. The MIMO NLMS-ZF algorithm which utilizes channel state information has had limited success due to difficulty in obtaining both simplicity and a rigorous solution. Even so, with only an approximate solution, it still performs better than the NLMS data detection algorithm for fast-varying channels.