Mobile Lightweight Wireless Systems. First International ICST Conference, MOBILIGHT 2009, Athens, Greece, May 18-20, 2009, Revised Selected Papers

Research Article

IEEE 802.16 Packet Scheduling with Traffic Prioritization and Cross-Layer Optimization

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  • @INPROCEEDINGS{10.1007/978-3-642-03819-8_26,
        author={Jo\"{a}o Monteiro and Susana Sargento and \^{A}lvaro Gomes and Francisco Fontes and Pedro Neves},
        title={IEEE 802.16 Packet Scheduling with Traffic Prioritization and Cross-Layer Optimization},
        proceedings={Mobile Lightweight Wireless Systems. First International ICST Conference, MOBILIGHT 2009, Athens, Greece, May 18-20, 2009, Revised Selected Papers},
        proceedings_a={MOBILIGHT},
        year={2012},
        month={6},
        keywords={QoS WiMAX Scheduling NS-2 WiMAX Forum},
        doi={10.1007/978-3-642-03819-8_26}
    }
    
  • João Monteiro
    Susana Sargento
    Álvaro Gomes
    Francisco Fontes
    Pedro Neves
    Year: 2012
    IEEE 802.16 Packet Scheduling with Traffic Prioritization and Cross-Layer Optimization
    MOBILIGHT
    Springer
    DOI: 10.1007/978-3-642-03819-8_26
João Monteiro,*, Susana Sargento1,*, Álvaro Gomes2,*, Francisco Fontes2,*, Pedro Neves,*
  • 1: University of Aveiro
  • 2: Portugal Telecom Inovação
*Contact email: it-j-monteiro@ptinovacao.pt, susana@ua.pt, agomes@ptinovacao.pt, fontes@ptinovacao.pt, pedro-m-neves@ptinovacao.pt

Abstract

WiMAX is emerging as a broadband wireless access technology to satisfy end user expectations, containing a new set of advantages in terms of throughput, coverage and QoS support at the MAC level which allows convergence of several different types of applications and services. For that reason, the allocation of resources or scheduling becomes of greater importance. This paper focuses on a cross-layer scheduling optimization solution for IEEE 802.16. The relevant features of the proposed packet scheduling optimization scheme consist: of prioritization of users within the same traffic class, allowing for example to an operator, differentiated treatment among users, for instance distinguishing between premium or gold users and silver users; and also cross layer optimization which implies radio resource optimization and a more effective scheduler decision. Simulation scenarios are presented to demonstrate how the scheduling solution allocates resources through particular WiMAX MAC layer implementation in the NS-2 simulator. Results show that the new mechanism implementation results in an improvement to the simple Round Robin fashion present in the original simulation model, being able to increase differentiation between different classes and decrease packets delay, due to its cross-layer processing and traffic prioritization.