Multi-path combining scheme for ISI suppression in DS-UWB systems

Jianwei Wang, Dong Wang, Yuping Zhao

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

Abstract

Ultra Wide-band (UWB) recently attracts much attention as an indoor short range high-speed wireless communication technology for next generation networks. Direct sequence spread ultra wide-band (DS-UWB) systems uses extremely short pulses and has the advantage of high path resolution and can get multi-path diversity if using rake structured receivers such as selective rake (S-rake) receiver. Unfortunately inter-symbol interference (ISI) will become a significant performance limitation when data rate is high. Several techniques such as rake receiver using minimum mean square error (MMSE) combining weights and frequency domain equalization (FDE) have been proposed to combat ISI. Different from these relatively complex methods, a practical multi-path combining scheme (MPC) to suppress ISI in DS-UWB systems is proposed in this paper. Simulation results show that our proposal outperforms the conventional S-rake receiver especially in a high signal to noise ratio (SNR) scenario.

Original languageEnglish (US)
Title of host publication2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
PublisherIEEE Computer Society
ISBN (Print)1424405173, 9781424405176
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 - Wuhan, China
Duration: Sep 22 2006Sep 29 2006

Publication series

Name2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006

Conference

Conference2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
Country/TerritoryChina
CityWuhan
Period9/22/069/29/06

Keywords

  • DS-UWB
  • ISI suppression
  • Multi-path combining scheme

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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