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In a Mobile Ad hoc NETwork (MANET), nodes are self-organized and have to cooperate for routing in absence of fixed infrastructure. Two nodes beyond the direct communication range need intermediate nodes to forward their packets. Working in an open environment, MANETs are vulnerable to attacks by malicious nodes. A trust-based on-demand routing framework is given to decrease the hazards from malicious...
This paper investigates the global optimal multicast routing in the cognitive ad hoc networks, which is based on the directional antenna model. By analyzing directional antenna model and based on the end-to-end performance parameters, a multicast routing algorithm, which is to obtain the global optimal performance and refers to the energy utilization as metric, is proposed. Simulation results show...
A new route repair scheme based on link breaks is proposed to improve route repair efficiency for realistic ad hoc networks. Its design idea is as follows. Change of downstream node status is regarded as the basis of choosing route repair schemes by the repairing node. Causes of link breaks would be analyzed according to the change of node status. And different nodes are selected as the destinations...
MANET (mobile ad hoc network) is a mobile multi-hop, wireless self-organized distributed network. This paper introduces the concept and characteristics of MANET, gives a general survey of research on local repair for MANET and proposes a new local repair scheme based on link breaks in order to make up the deficiency of the existing local repair schemes. The improved local repair scheme concerns about...
Due to unstable link states, broadcasting transmission pattern, and interference between neighbor nodes, routing in wireless mesh network (WMN) is much more complicated and unpredictable than wired network. As the simplest and most primitive routing metric, hop count does not always work well in WMN where routing with least hop count does not bring the best performance. Recent research shows that...
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