SSP'05 -- Proceedings

	IEEE/SP 13th workshop on Statistical Signal Processing July, 17-20, 2005 - Bordeaux - France

Information regarding the paper

Title

Rank Reduction for Rapid Timing Acquisition in Multiple Access Communications

Author(s)

Hongya Ge	New Jersey Institute of Technology
Louis Scharf	Colorado State University

Get the paper in PDF format

To obtain Acrobat Reader (version 5 minimum required) necessary to his read.

Abstract

This work presents our new results on data-driven rank reduction for rapid timing acquisition in multiple access~(MA) communications systems. The results generally apply to multiple access systems, such as code-division multiple access (CDMA) and the ultra-wide band (UWB) systems, operating over environments with severe radio interference. Our results show that when only a {\em limited amount} of data is available, {\em rather than} the true statistics required for timing acquisition, reduced rank solutions provide more reliable timing information than high-rank solutions. Our results demonstrate that a low-rank version of the objective function for timing acquisition, using the estimated statistic is less sensitive to spurious peaks than that of the high-rank solutions.