Computer Science ›› 2013, Vol. 40 ›› Issue (4): 73-77.

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Hotspot-aware Data Storage Strategy for Wireless Sensor Networks

LI Qiao-qin,WU Lei and WANG Yan   

  • Online:2018-11-16 Published:2018-11-16

Abstract: Considering hotspot problem in GHT(Geographic Hash Table)-based Data-centric storage (DCS) sensor networks,this paper proposed a hotspot-aware data storage scheme (SASS),which improves the routing scheme of GHT to reduce the energy consumption caused by perimeter walk,and exploits neighboring nodes to extend storage space dynamically.Simulation results demonstrate that compared with exiting schemes,SASS can effectively alleviate data lost caused by the limitation of storage space and reduce communication load of nodes in hotspot areas.

Key words: Wireless sensor networks,Data-centric storage,Storage hotspot,Events

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