关键词: 频谱共享, 拍卖机制, 混合接入, 补偿, 效用函数

Abstract: A hybrid spectrum sharing algorithm based on auction mechanism is proposed to improve the network efficiency in hybrid spectrum model. When the Macro User Equipments（MUEs） are close to the Femto Access Points（FAPs）, the link between the FAPs and the MUEs is better than the link between the Macro Base Station（MBS） and the MUEs. So the MBS will like offload MUEs to the femtocell networks to achieve better quality of communication service and save energy for the MBS. Ensuring the quality-of-service requirement, the MBS gives the remaining spectrum to the FAPs and MBS pays the compensation fee to the FAPs for serving the additional MUEs. Each FAP determines its bid independently, The MBS determines the optimal allocation strategy according to bids. The proposed auction for motivating the hybrid access in the heterogeneous networks results in a win-win solution since both utilities of the MBS and FAPs are maximized. The compensation is used, which can encourage hybrid access in the heterogeneous networks effectively.

Key words: spectrum sharing, auction mechanism, hybrid access, compensation, utility