A Decision Feedback Reverse Link Receiver Implementation for IS-95 CDMA Communications

  • Authors:

  • David Rabinowitz;Mario E. Magaña

  • Affiliations:

  • Department of Electrical and Computer Engineering, Oregon State University, Corvallis, OR 97331, U.S.A.;Department of Electrical and Computer Engineering, Oregon State University, Corvallis, OR 97331, U.S.A.

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 1999

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Abstract

An implementation of a reverse link receiver for IS-95 CDMA (Code-Division Multiple-Access) communications that applies decision feedback to the decoding of the received signal is presented. Decision feedback is used in order to improve BER performance by making use of additional information that conventional receiver designs generally ignore. Qualitative analysis and computer simulation of the hardware components of the proposed implementation shows that it can be built as a single integrated circuit using present day technology. The design presented here does not include the RF front-end of the receiver, does not consider the effects of multipath and fading on system performance, and assumes perfect power control.