Spatio-Temporal Array-Receiver for Multipath Tracking in Cellular CDMA

نویسندگان

  • Sofiène Affes
  • Paul Mermelstein
چکیده

Eficient multipath tracking i s a crucial requirement for high performance in asynchronous cellular CDMA. Despite the recent increased focus on use of array receivers at the base stations, the problem of time-delay estimation for individual paths has not been specifically addressed. In this contribution we propose simple and fast multipath tracking procedures in a nonstationary CDMA environment, using the SpatioTemporal Array-Receiver (STAR). Both the time-delays and their number are tmcked an time in a partially blind scheme with a low order of computational complezity. We show by simulations the tracking capability of STAR at a high interference level.

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تاریخ انتشار 1997