Capacity and QoS for a scalable ring-based wireless mesh network

Jane Hwa Huang*, Li-Chun Wang, Chung Ju Chang

*Corresponding author for this work

Research output: Contribution to journalArticle

18 Scopus citations


The wireless mesh network (WMN) is an economical solution to support ubiquitous broadband services. This paper investigates the tradeoffs among quality-of-service (QoS), capacity, and coverage in a scalable multichannel ring-based WMN. We suggest a simple frequency planning in the proposed ring-based WMN to improve the capacity with QoS support, and to make the system more scalable in terms of coverage. We develop a physical (PHY)/medium access control (MAC) cross-layer analytical model to evaluate the delay, jitter, and throughput of the proposed WMN, by taking account of the carrier sense multiple-access (CSMA) MAC protocol, and the impact of hop distance on transmission rate in the physical layer. Furthermore, the mixed-integer nonlinear programming optimization approach is applied to determine the optimal number of rings and the associated ring widths, aiming at maximizing the capacity and coverage of a mesh cell subject to the delay requirement.

Original languageEnglish
Article number1717621
Pages (from-to)2070-2080
Number of pages11
JournalIEEE Journal on Selected Areas in Communications
Issue number11
StatePublished - 1 Nov 2006


  • Capacity and coverage
  • Cross-layer analysis
  • Quality-of-service (QoS)
  • Wireless mesh network (WMN)

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