Spectrum redistribution for cognitive radios using discriminatory spectrum double auction

Luxi Lu, Wei Jiang, Lin Bai, Chen Chen, Jianhua He, Haige Xiang, Wu Luo

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    1 Citation (Scopus)

    Abstract

    With the reformation of spectrum policy and the development of cognitive radio, secondary users will be allowed to access spectrums licensed to primary users. Spectrum auctions can facilitate this secondary spectrum access in a market-driven way. To design an efficient auction framework, we first study the supply and demand pressures and the competitive equilibrium of the secondary spectrum market, considering the spectrum reusability. In well-designed auctions, competition among participants should lead to the competitive equilibrium according to the traditional economic point of view. Then, a discriminatory price spectrum double auction framework is proposed for this market. In this framework, rational participants compete with each other by using bidding prices, and their profits are guaranteed to be non-negative. A near-optimal heuristic algorithm is also proposed to solve the auction clearing problem of the proposed framework efficiently. Experimental results verify the efficiency of the proposed auction clearing algorithm and demonstrate that competition among secondary users and primary users can lead to the competitive equilibrium during auction iterations using the proposed auction framework.

    Original languageEnglish
    Pages (from-to)774-789
    Number of pages16
    JournalWireless Communications and Mobile Computing
    Volume13
    Issue number8
    DOIs
    Publication statusPublished - 10 Jun 2013

    Keywords

    • cognitive radio
    • discriminatory double auction
    • dynamic spectrum allocation
    • spectrum auction

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