Two-sided Matching Model Based Vertical Handover Algorithm in Heterogeneous Wireless Networks
MA Bin DENG Hong XIE Xianzhong
(Institute of Broadband Access Networks, Chongqing University of Posts & Telecommunications, Chongqing 400065, China)
(College of Computer Science and Technology, Chongqing University of Posts & Telecommunications, Chongqing 400065, China)
Abstract：Most of the existing vertical handover algorithms are only based on user centric or network centric, which do not fully consider the common impact of the two sides on the handover decision. In order to solve this problem, a two-sided matching model based vertical handover algorithm in heterogeneous wireless networks is proposed. The handover performance is improved from the following aspects: first, two evaluation models of user centered and network centered are respectively proposed based on quality of service revenue and the blocking rate. And the ranking value of the two sides is evaluated further. Then, based on the ranking value, a one-to-many two-sided matching model is used to model the two-sided matching behavior of users and networks. In this way, users can access suitable networks. Simulation results show that the proposed evaluation models are in accordance with the practical network scenario, and the proposed algorithm can better balance the demand of users and networks.
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