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

Xiaoli Wang, Hongya Ge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationForty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings
Pages147-150
Number of pages4
DOIs
StatePublished - Dec 1 2007
Event41st Annual Conference on Information Sciences and Systems, CISS 2007 - Baltimore, MD, United States
Duration: Mar 14 2007Mar 16 2007

Publication series

NameForty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings

Other

Other41st Annual Conference on Information Sciences and Systems, CISS 2007
Country/TerritoryUnited States
CityBaltimore, MD
Period3/14/073/16/07

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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