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With the proliferation of group-oriented applications in mobile ad hoc networks (MANETs), users need suitable group key agreements to secure communication between group members. Because of users¡¦ mobility, group members join their group or leave frequently in MANETs. Due to each MANET has a unique, specific purpose, there typically is no central management mechanism. The utilization of resource,...
In order to solve the reliability of multicast communication in Wireless Ad hoc networks, proposes a fault-tolerant multicast protocol, adds a multicast fault tolerance in the network layer and application layer, and has been verified by experiments in reliable packet delivery, port to port delay control, error control with good results.
This paper presents an improved clustering routing protocol, ILEACH which based on the characteristic of limited energy of wireless sensor networks to prolong the lifetime of the whole networks. It takes nodes' residual energy into consideration during the process of cluster heads being elected. The constraint threshold of distance is used to optimize cluster scheme. Furthermore, it also constructs...
In ad-hoc networks, cooperative diversity is especially beneficial where the use of multiple antennas may be impractical. There has been a lot of work on improving the peer-to-peer link quality by using advanced coding or power and rate allocation between a single source node and its relays. However, how to fairly and efficiently allocate resources among multiple users and their relays is still unknown...
In Mobile Ad hoc NETworks (MANETs), random access and dynamic routing are two critical techniques for mobile nodes to convey information without centralized scheduling. Conventionally, random access and dynamic routing are implemented at the Medium Access Control (MAC) and the network layer, respectively. However, the current MAC protocol Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)...
Nowadays most ad hoc mobile devices heavily depend on the performance of batteries. Optimizing the power consumption is a very crucial issue. To maximize the lifetime of mobile ad hoc network, the power consumption rate of each node must be evenly distributed. In this paper we present a novel power-aware routing algorithm based on mobile agents to deal with the routing mechanism in the energy-critical...
In the ad hoc network of high mobility currently, there exists the problem of the high delay. This paper proposes to apply particle swarm optimization (PSO) strategy to improve this problem. Firstly, we present a hybrid particle swarm optimization (HPSO) algorithm combining genetic algorithm (GA), which is suitable to be used in a routing protocol, and then establish an on-demand routing protocol...
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