An equilibrium multi-hop cluster hierarchy for wireless sensor networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Balancing energy consumption with mobile agents in wireless sensor networks
Future Generation Computer Systems
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Wireless Sensor Networks (WSNs) have been widelyused in motoring and collecting interests of environmentinformation. Packet flooding or broadcasting is essential functionfor establishing a communication path from sink node to a regionof sensor nodes. However, flooding operation consumes powerand bandwidth resources and raises the packet collision andcontention problems, which reduce the success rate of packettransmissions and consume energy. This article proposes anefficient broadcasting protocol to reduce the number of sensornodes that forward the query request, hence improves the packetdelivery rate and saves bandwidth and power consumptions.Sensor node that received the query request will dynamicallytransfers the coordinate system according to the zone-ID ofsource node and determines whether it would forward therequest or not in a distributed manner. Compared withtraditional flooding operation, experimental results show that theproposed zone-based broadcasting protocol decreases thebandwidth and power consumptions, reduces the packetcollisions, and achieves high success rate of packet broadcasting.