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Routing protocol is one of the most challenging problems in Ad Hoc networks, especially when multimedia information is introduced into the network. However, it is still a suspended problem to support real-time video communication in such network. In this paper, we propose an improved multi-path AODV protocol for real-time video communication, where link-independent backup multi-path mechanism is introduced...
This work compares the performance of cluster-based and tree-based routing protocols. Two kinds of operations are considered: aggregation and acquisition. We theoretically analyze the performance of cluster-based and tree-based topologies, and find that cluster-based topology is more energy efficient for aggregation than tree-based topology; but in the case of acquisition, tree-based topology is more...
The performance of data query processing in wireless sensor networks is greatly affected by routing protocol. Currently available data query systems usually use one routing protocol to deal with all kinds of queries. This work demonstrates that properly selecting routing protocol according to different kinds of queries can improve the performance of query processing. We propose a dynamic routing layer...
Energy efficiency has been known as the most important problem in designing a data query system in wireless sensor networks (WSNs). In this paper, we propose a novel query method in which the clusters are constructed only in the query area as needed and destroyed after the query ends. To achieve this goal, we design and implement a Tree-Based Clustering (TBC) protocol to support upper layer applications...
Energy efficiency is one of the most important considerations in wireless sensor networks. In a clustered sensor network, some of the nodes become cluster heads. They aggregate the data from their cluster members and transmit it to the base station. In this paper, we propose a uniformly distributed adaptive clustering hierarchy routing protocol (UDACH). Unlike LEACH and LEACH-C, our protocol is based...
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