The end-to-end QoS guarantee framework for interworking WiMAX PMP and mesh networks with Internet

Ing-Chau Chang, Yi Ting Mai

Research output: Contribution to journalArticle

3 Citations (Scopus)


A network environment, in which 802.16 WiMAX PMP and mesh networks interwork with the Internet, is becoming prevalent and thus ensuring an end-to-end QoS of a media stream after the handoff of mobile host is critical. In this paper, an end-to-end QoS guarantee framework and its handoff flows are revised first. An end-to-end QoS adjustment algorithm is proposed to dynamically adjust the L2 bandwidth allocated in the WiMAX PMP and mesh networks and the L3 data rate in the Internet after the handoff. A CBQ + RED QoS adaptation algorithm is further proposed to adapt queue lengths among different service types and provide efficient queue and traffic management mechanisms as each packet arrives. Finally, simulation results indicate that this framework with these two algorithms outperform three QoS management schemes by supporting higher throughputs, lower packet loss ratios and smaller delays on the end-to-end path under different parameter combinations and two handoff scenarios.

Original languageEnglish
Pages (from-to)1905-1934
Number of pages30
JournalComputers and Electrical Engineering
Issue number6
Publication statusPublished - 2013 Aug 1


All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science(all)
  • Electrical and Electronic Engineering

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