Codeword design for multiple-access precoded ultra-wideband communication system

Document Type

Conference Proceeding

Publication Date

12-1-2007

Abstract

We propose a novel precoded UWB (PUWB) system designed for multiple access (MA) communications. In our design, we try to enable concentration of the received signal power from different users (synchronized) at different time slots, thus make the matched filter (MF) based multiuser detection eligible for optimal reception. The optimum code is constructed to maximize the output signal-to-interference ratio (SIR). Specifically, we formulate the codeword design problem into an orthogonal basis rinding problem, and the Gram-Schmidt algorithm can be easily applied. Computer simulations demonstrate the satisfactory performance of the proposed system. Extended simulations also cover the effect of symbol length; the resolution of the feedback code message; the number of multiple users; as well as the realizations from different standardized UWB channel models. © 2007 IEEE.

Identifier

44049084080 (Scopus)

ISBN

[1424410371, 9781424410378]

Publication Title

Forty First Annual Conference on Information Sciences and Systems Ciss 2007 Proceedings

External Full Text Location

https://doi.org/10.1109/CISS.2007.4298289

First Page

147

Last Page

150

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