Mutihop-enabled Trusted Handoff Algorithm in Heterogeneous Wireless Networks

Ubiquitous and heterogeneous wireless network is an important form of network, and vertical handoff is one of the key issues of the mobility management in this type of network. In Ad hoc network, multihop-enabled forwarding is able to expand network coverage and reduce single-hop propagation distance. Based on the above, TMVHA (trusted and multihop-enabled Vertical Handoff Algorithms) is designed and multihop trust management mechanism is established, thus enhancing the handoff performance of the mobile nodes and the network performance after handoff. The experimental result shows that: the algorithm proposed in this paper outperforms those without considering multihop and node trust in handoff times and throughput, and at the same time being able to reduce the influence of the attack on network by malicious nodes.