A multihop peer-communication protocol with fairness guarantee for IEEE 802.16-based vehicular networks

Kun Yang, Shumao Ou, Hsiao Hwa Chen, Jianhua He

    Research output: Contribution to journalArticlepeer-review

    112 Citations (Scopus)


    Wireless-communication technology can be used to improve road safety and to provide Internet access inside vehicles. This paper proposes a cross-layer protocol called coordinated external peer communication (CEPEC) for Internet-access services and peer communications for vehicular networks. We assume that IEEE 802.16 base stations (BS) are installed along highways and that the same air interface is equipped in vehicles. Certain vehicles locating outside of the limited coverage of their nearest BSs can still get access to the Internet via a multihop route to their BSs. For Internet-access services, the objective of CEPEC is to increase the end-to-end throughput while providing a fairness guarantee in bandwidth usage among road segments. To achieve this goal, the road is logically partitioned into segments of equal length. A relaying head is selected in each segment that performs both local-packet collecting and aggregated packets relaying. The simulation results have shown that the proposed CEPEC protocol provides higher throughput with guaranteed fairness in multihop data delivery in vehicular networks when compared with the purely IEEE 802.16-based protocol.

    Original languageEnglish
    Pages (from-to)3358-3370
    Number of pages13
    JournalIEEE Transactions on Vehicular Technology
    Issue number6 I
    Publication statusPublished - Nov 2007


    • External peer communication
    • IEEE 802.16
    • Multihop
    • Scheduling algorithm
    • Vehicle to roadside communication
    • Vehicular networks

    ASJC Scopus subject areas

    • Automotive Engineering
    • Aerospace Engineering
    • Applied Mathematics
    • Electrical and Electronic Engineering


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