Mobile WiMAX: multi-cell network evaluation and capacity optimization

YQ Bian, AR Nix

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

6 Citations (Scopus)
397 Downloads (Pure)

Abstract

The performance of a mobile WiMAX system is highly dependent on the application environment. Local clutter has a significant impact on the path loss exponent and the observed multipath statistics. The spectral efficiency of a WiMAX network can be enhanced if channel quality information is included as part of the system optimization process. This paper presents a comprehensive study of such a scenario, with numerical analysis of mobile WiMAX presented for a multi-cell deployment. In order to achieve high coverage and throughput to a large number of users, handover (HO) and link adaptation (LA) strategies are addressed. Interference is spatially separated through the use of dynamic channel allocation and WiMAX user assignment. Results show that coverage to 98% of the service area is achieved with an average throughput of 3.88 Mbps per sector. This is based on a 5MHz (512-FFT) OFDMA TDD profile (using one-third fractional reuse) deployed in licensed 3.5 GHz spectrum.
Translated title of the contributionMobile WiMAX: multi-cell network evaluation and capacity optimization
Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference, 2008 (VTC Spring 2008), Singapore
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1276 - 1280
Number of pages5
DOIs
Publication statusPublished - May 2008
EventVehicular Technology Conference 2008 - Singapore, Singapore
Duration: 1 May 2008 → …

Publication series

Name
ISSN (Print)15502252

Conference

ConferenceVehicular Technology Conference 2008
Abbreviated titleVTC 2008-Spring
CountrySingapore
CitySingapore
Period1/05/08 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: This work was funded by Toshiba Research Europe Ltd (TREL), Bristol, UK.

Terms of use: Copyright © 2008 IEEE. Reprinted from IEEE Vehicular Technology Conference, 2008 (VTC Spring 2008).

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Keywords

  • WiMAX
  • OFDMA
  • interference
  • handover
  • link adaption
  • channel allocation

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