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| he next generation networks will be an all IPv6 based network and composed of diverse wired and wireless radio access technologies. The signals received by mobile terminals may come from different networks. How to select the best network suitable to current traffic is the key issue of guaranteeing the service of quality in heterogeneous networks. The traditional single-hop access method used in 3G/2.5G cellular network will inevitably cause the base station as a communication bottleneck. MANET utilizes the dynamic multi-hop routing method. Mobile nodes in ad hoc network are also as routers, which increase the power consuming of mobile nodes.
An adaptive multi-hop access routing protocol is newly presented in this paper. It combines the single hop character used in conversional cellular networks with the self-organization in ad hoc networks. When quality of service of the network access points cannot satisfy the service demands, the mobile terminals can transfer packets with the hel |
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| Keywords:Heterogeneous networks, ad hoc, handover, QoS, multi-hop access |
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