Cognitive interference-mitigation technique for hybrid DS-multiband-UWB multiple access system

Chin Sean Sum, Mohammad Azizur Rahman, Shigenobu Sasaki, Hiroshi Harada, Shuzo Kato

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

2 Citations (Scopus)

Abstract

This paper proposes a cognitive interference-mitigation technique for a hybrid direct sequence (DS) multiband (MB) ultra wideband (UWB) system. Theoretical framework of the DS-MB-UWB multiple access system employing cognitive interference-detection and mitigation is constructed over multipath environment in the presence of a coexisting narrowband wireless system. Interference mitigation is achieved through partially suppressing the power of the particular sub-band coexisting with the narrowband signal. A typical error performance improvement of around 10 fold can be achieved by suppressing 75% power of the affected sub-band. Additionally, increasing the number of sub- bands is found to achieve more improvement than increasing the number of DS chips. This paper attempts to develop a cognitive mitigation technology able to obtain optimum performance improvement while maintaining the highest possible frequency diversity.

Original languageEnglish
Title of host publication2008 IEEE Radio and Wireless Symposium, RWS
Pages105-108
Number of pages4
DOIs
Publication statusPublished - 2008 Sep 9
Event2008 IEEE Radio and Wireless Symposium, RWS - Orlando, FL, United States
Duration: 2008 Jan 222008 Jan 24

Publication series

Name2008 IEEE Radio and Wireless Symposium, RWS

Other

Other2008 IEEE Radio and Wireless Symposium, RWS
CountryUnited States
CityOrlando, FL
Period08/1/2208/1/24

Keywords

  • Cognitive interference mitigation
  • DS-multiband-UWB
  • Multipath
  • Multiple access

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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