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Sensor networks tend to support different traffic patterns since more and more emerging applications have diverse needs. We present MGRP, a Multi-Gradient Routing Protocol for wireless sensor networks, which is fully distributed and efficiently supports end-to-end, one-to-many and many-to-one traffic patterns by effectively construct and maintain a gradient vector for each node. We further combine...
The practical applications of wireless sensor networks require robust time synchronization. In this paper we describe the Flooding Time Synchronization Protocol (FTSP) that provides time synchronization service in such networks. We found there are Key nodes and Non-key nodes when using FTSP in the case of temperature interference. This protocol was designed to utilize low communication bandwidth,...
Recent work in building data-centric sensor networks treats a sensor network as a pool of information. Sensor nodes generate, store, and retrieve information as both data producers and consumers. The intensive demand of data exchange within the network leads previous approaches with sensor-to-sink transmission model inefficient. In-network data storage schemes, such as geographical hash table (GHT)...
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