Time-varying UWB channel model for mobile robot-to-robot communication systems

Uche A.K. Chude-Okonkwo, Solomon Nunoo, Razali Ngah

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

This paper presents a geometric-based time-varying ultrawideband (UWA) channel model for the mobile robot-to-robot (R2R) communication scenario. The proposed model takes the nonstationarity of the channel into account. The influence of the ground reflected signal on the R2R channel is also considered in the model. To provide insight into the time-varying behaviour of the R2R channel, the concept of channel stationarity is explored. This concept is used to evaluate the deviation of the channel characteristics in the scenario where both robots are moving, from the scenario where only one robot is moving. Simulation results show that in the case of line-of-sight (LOS) and at 99% correlation, the stationarity bandwidth of the channel when only one robot is moving is larger than when both robots are moving. However, in the case of non-LOS (NLOS), the stationarity bandwidths for both scenarios are observed to dependent essentially on the proximity and distribution of the scatterers, but less on the distance between the robots.

Original languageEnglish
Pages1-6
Number of pages6
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE 11th Malaysia International Conference on Communications, MICC 2013 - Kuala Lumpur, Malaysia
Duration: 26 Nov 201328 Nov 2013

Conference

Conference2013 IEEE 11th Malaysia International Conference on Communications, MICC 2013
Country/TerritoryMalaysia
CityKuala Lumpur
Period26/11/1328/11/13

Keywords

  • Time-varying Ultrawideband channel
  • geometrical model
  • mobile robots
  • stationarity dimension

ASJC Scopus subject areas

  • Computer Networks and Communications

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