Improving indoor capacity for WiMAX networks using multi-hop relays

Khalil Alsobhi, Bayan Sharif, Konstantinos Ntagkounakis, Rolando Carrasco

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Despite the fact that advanced techniques such as adaptive modulation and coding (AMC), AAS and MIMO are incorporated into WiMAX systems, providing network access at indoor locations posses some challenges in terms of meeting the main objectives of performance, time-tomarket and cost optimization. Indoor propagation conditions (i.e. higher path loss, penetration loss) make it difficult to rely on the conventional WiMAX infrastructure typically designed to provide high coverage and range only. In this paper, a low-cost and easy to deploy relay based WiMAX system coupled with channel allocation methodology is proposed as a means of coverage and capacity improvement for an indoor subscriber. An extensive system level simulation (channel models, path loss, shadow fading, antenna pattern, etc.) has been carried out. The distribution of SINR, system outage and system capacity performance metrics are used to evaluate the performance. The results show that for indoor coverage, conventional WiMAX system deployment failed to meet the required outage probability of 10% for BER of 1χ10 -6; while for the same coverage area the proposed system improved the coverage and capacity.

Original languageBritish English
Title of host publicationProceedings of the 8th IASTED International Conference on Wireless and Optical Communications, WOC 2008
Pages37-41
Number of pages5
StatePublished - 2008
Event8th IASTED International Conference on Wireless and Optical Communications, WOC 2008 - Quebec City, QC, United States
Duration: 26 May 200828 May 2008

Publication series

NameProceedings of the 8th IASTED International Conference on Wireless and Optical Communications, WOC 2008

Conference

Conference8th IASTED International Conference on Wireless and Optical Communications, WOC 2008
Country/TerritoryUnited States
CityQuebec City, QC
Period26/05/0828/05/08

Keywords

  • Cellular environment
  • Fixed relay system
  • SINR
  • System level simulation
  • WiMAX deployment

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