Evaluation of multi-user effects on the channel in the TH-UWB communication systems

Said Ghendir, Riadh Ajgou, Salim Sbaa, Ali Al-Sherbaz

Research output: Contribution to Book/ReportConference Contributionpeer-review


This paper investigates the UWB channel to focus the light on the multi-user and their impact on the UWB communication performance. We addressed the performance evaluation of Time Hopping Ultra-Wideband (TH-UWB) system with the Pulse Position Modulation (PPM) by assuming multiuser scenarios. The channel used here is the IEEE 802.15.3a that consists of Channel Models (CM1~CM4). Moreover, a Rake receiver is adopted to collect the multipath occurring in the UWB channel. Thus, the reception of signals requires a channel estimation stage (for amplitudes and delays) which is achieved here using the Maximum-Likelihood (ML) approach with two contexts i.e. Data Added (DA) and Non-Data Added (NDA). Simulation results confirm that the channel estimation is affected slightly by the multi-user in terms of amplitudes and considerably in terms of delays, and thus leads to focus much on multipath time resolution to gain better UWB communication accuracy and BER performance.
Original languageEnglish
Title of host publication2017 5th International Conference on Electrical Engineering - Boumerdes (ICEE-B)
Place of PublicationU.S.
Number of pages6
ISBN (Electronic)9781538606865
ISBN (Print)9781538606872
Publication statusPublished - 14 Dec 2017
EventThe 5th International Conference on Electrical Engineering - ICEE 2017 - University of Boumerdes, Boumerdes, Algeria
Duration: 29 Oct 201731 Oct 2017


ConferenceThe 5th International Conference on Electrical Engineering - ICEE 2017
Internet address


  • Channel estimation
  • error statistics
  • maximum likelihood estimation
  • multipath channels
  • multiuser channels
  • pulse position modulation
  • ultra wideband communication
  • BER performance
  • IEEE 802.15.3a
  • TH-UWB communication systems
  • UWB channel
  • UWB communication performance
  • channel estimation stage
  • maximum-likelihood approach
  • multipath time resolution
  • multiuser effects
  • nondata added approach
  • rake receiver
  • signal reception
  • time hopping ultrawideband system
  • fading channels
  • fingers
  • modulation
  • ML
  • multi-user
  • PPM
  • TH-UWB


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