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Opportunistic routing employs transmission coordination mechanism (TCM) to reduce the total number of packet transmissions so as to improve end-to-end throughput. Existing paradigms use batch map to record the progress of packets transmitted in batch mode towards to destination, and then achieve distributed transmission coordination by exchanging batch map among candidate forwarders. However, the...
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 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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