5th International ICST Conference on Communications and Networking in China

Research Article

User-satisfaction-based media services over vehicular networks

Download438 downloads
  • @INPROCEEDINGS{10.4108/chinacom.2010.97,
        author={Liang Zhou and Joel Rodrigues and Lawrence Yeung},
        title={User-satisfaction-based media services over vehicular networks},
        proceedings={5th International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2011},
        month={1},
        keywords={vehicular networks media service user-satisfaction optimization},
        doi={10.4108/chinacom.2010.97}
    }
    
  • Liang Zhou
    Joel Rodrigues
    Lawrence Yeung
    Year: 2011
    User-satisfaction-based media services over vehicular networks
    CHINACOM
    ICST
    DOI: 10.4108/chinacom.2010.97
Liang Zhou1, Joel Rodrigues2, Lawrence Yeung1
  • 1: Department of Electrical & Electronic Engineering, The University of Hong Kong, Hong Kong
  • 2: Instituto de Telecomunicações, University of Beira Interior, Portugal

Abstract

A challenging problem of providing media services over vehicular networks is how to optimize the media content dissemination and vehicle cache update by intelligently considering opportunistic vehicle meet and different service requirements. In this work, we study this problem in the context of P2P-based vehicular networks, and develop fully dynamic service schemes with the goals of maximizing the total user-satisfaction and achieving certain fairness. We first construct a general user-satisfaction model according to the network's transmission mechanism, as well as different media's delay-satisfaction characteristics. Then, we formulate the media service as an optimization problem, and propose a joint content dissemination and cache update scheme. We also provide the exact steps to achieve the optimal solution at equilibrium given the user-satisfaction function. It is worth noting that the proposed scheme is designed in a distributed manner which is amenable to online implementation for vehicle networks. In addition, we provide extensive simulation results which demonstrate the effectiveness of our proposed schemes.