IEEE 802.22 WRAN网络中基于拍卖的频谱租借算法

Spectrum Auction Algorithm in IEEE 802.22 WRAN Network

在IEEE 802.22 WRAN网络中,基站间的频谱共享是一个重要的研究方向。若每个WRAN基站伺机占用信道,将带来信道分配不均的问题。利用拍卖理论激励基站间平衡信道分配,提出一种动态的频谱租借算法。该算法将频谱共享情况建模为一个拍卖基站和多个竟拍基站的拍卖模型,同时考虑竟拍基站间的信道需求和拍卖基站的收益,建立频谱共享的数学优化模型。仿真结果表明,与已有的频谱拍卖机制相比,该算法能获得较高的拍卖收益。

In IEEE 802.22 WRAN networks, spectrum sharing among different cells is an important problem. Aiming at efficiently solving the spectrum sharing problem,a dynamic spectrum renting scheme is proposed. Based on auction theory in microeconomics,the proposed algorithm models the spectrum sharing as an auction problem which includes one offering base station and multiple renting base stations. Simulation results show that the algorithm obtains higher spectrum utilization and higher auction benefit,and guarantees no interference between competitive WRAN base stations.