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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 the application of wireless sensor networks (WSN), the balance of energy consumption plays an important role in extending the life cycle of WSN. Aim at energy consumption of Wireless sensors network, a dynamic cluster-based routing protocol based on the greedy algorithm (GDCRP). In the protocol, nodes run for the cluster head according to the energy and location. The elected cluster head has optimal...
The topology in the application of WSN (wireless sensor networks) is complex. In order to meet the need of wireless data transmission in the coal mine working environment, we propose a distance-aware routing protocol. The basis of the establishment of topology is the distance between nodes; it establishes the hierarchical relationship for each node, the data among nodes is transmitted to the sink...
The environmental monitoring and management, such as the measurement of harmful gases in the atmosphere, needs the wireless sensor networks to do the real-time data acquisition. Propose a clustering routing protocol based on the R-tree structure. First establish cluster using location information of leaf nodes, then organize all the clusters in the region of the R- tree in group and establish the...
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