Extending Network Lifetime Using an Automatically Tuned Energy-Aware MAC Protocol
EWSN'06: Proceedings of the Third European conference on Wireless Sensor Networks(2006)
摘要
Sensor network devices have limited battery resources primarily consumed by radio communication. Network nodes play different
communication roles and consequently consume different amounts of energy. Nodes with heavier communication burdens prematurely
deplete their batteries and potentially partition the network such that other nodes are unable to communicate despite having
energy remaining. We have developed Seesaw, an asynchronous and asymmetric MAC protocol that balances the energy consumption among nodes with differing loads, and thus
prolongs network lifetime. Balancing is possible through Seesaw mechanisms that allow heavily burdened nodes to shift some of the effort of maintaining communication to more lightly loaded
neighboring nodes. We show how to exploit the flexibility of asynchrony and asymmetry to balance energy consumption across
the network, and develop methods for automatically tuning each node to achieve this.
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关键词
extending network lifetime,different communication role,prolongs network lifetime,seesaw mechanism,asymmetric mac protocol,energy consumption,different amount,energy-aware mac protocol,radio communication,sensor network device,heavier communication burden,network node,sensor network
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