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Compared with traditional IP Multicast, overlay multicast is not only flexible in functionality but also compatible with current network infrastructure. Therefore it is emerging as an effective solution for most group communications over the Internet. Affected by end-host overlay systems, the overlay multicast routing problem is studied under a single homed model in most literatures. Under this model...
We propose DIRA as an overlay multicast routing algorithm to support QoS-aware multicast applications. Its basic idea is to construct overlay multicast trees within Diffserv domains and try to find an overlay tree spanning all member nodes at a cost as low as possible. The proposed algorithm exploits the special relationship between the edge routers and the core routers in the Diffserv domain to adapt...
We propose TOMIMN as a novel overlay multicast approach, which exploits the support from IP multicast routers to construct a topology-aware overlay tree. Compared with most overlay multicast schemes, TOMIMN tree is compatible with the physical network and effective in saving bandwidth resource. Due to the network layer support, no complicated algorithm is needed to adjust the overlay topology in response...
In recent years, logistics distribution vehicle routing problem is a hot topic in logistics research. It is a NP problem and hard to get an optimal and satisfactory solution. The paper introduces removing-addition operator and excellent individual memory mechanism to the traditional genetic algorithm, so that the improved genetic algorithm can kee excellent individuals and maintain the population...
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