Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers

Research Article

The Master-Slave Stochastic Knapsack Modelling for Fully Dynamic Spectrum Allocation

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  • @INPROCEEDINGS{10.1007/978-3-642-30493-4_46,
        author={Sihai Zhang and Fei Yang and Wuyang Zhou},
        title={The Master-Slave Stochastic Knapsack Modelling for Fully Dynamic Spectrum Allocation},
        proceedings={Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers},
        proceedings_a={WICON},
        year={2012},
        month={10},
        keywords={Blocking forced termination probability master-slave stochastic knapsack full dynamic spectrum allocation cognitive radio},
        doi={10.1007/978-3-642-30493-4_46}
    }
    
  • Sihai Zhang
    Fei Yang
    Wuyang Zhou
    Year: 2012
    The Master-Slave Stochastic Knapsack Modelling for Fully Dynamic Spectrum Allocation
    WICON
    Springer
    DOI: 10.1007/978-3-642-30493-4_46
Sihai Zhang,*, Fei Yang1,*, Wuyang Zhou1,*
  • 1: University of Science and Technology of China
*Contact email: shzhang@ustc.edu.cn, genyang@mail.ustc.edu.cn, wyzhou@ustc.edu.cn

Abstract

Scarcity problem of radio spectrum resource stimulates the research on cognitive radio technology, in which dynamic spectrum allocation attracts lots of attention. For higher access efficiency in cognitive radio context, we suggest a fully dynamic resource allocation scheme for primary and secondary users, which is modelled by a master-slave stochastic knapsack process. Equilibrium behavior is analyzed, and expressions of blocking probability of both slave and master classes are derived as performance criterion and verified by numeric simulation, as well as forced termination probability of the secondary users. Compared to traditional opportunistic spectrum access (OSA), which can be regarded as half dynamic, our scheme leads to less termination events for the slaves while keeping the same behavior for the master class, promoting the system access performance.