NDLI: Query-based Wireless Sensor Storage Management for Real-time Applications

Content Provider	IEEE Xplore Digital Library
Author	Tamishetty, R. Lek Heng Ngoh Pung Hung Keng
Copyright Year	2006
Description	Author affiliation: Inst. for Infocomm Res., Singapore (Tamishetty, R.; Lek Heng Ngoh)
Abstract	In this paper we propose location aided storage management for data centric storage in wireless sensor networks. Sensor networks store data in three places: external, in-network, local. In-network storage allows sensor nodes as storage nodes for sensed data in the sensor network. This form in-network storage in sensor networks is called data centric storage and is achieved by geographic hashing. Geographic hashing refers to hashing of data types to geographic locations. These hashed locations are mapped to nearest sensor nodes as storage points. One interesting observation in geographic hashing is the hashed locations are mapped to static storage nodes, and the mapping is not dependent on query traffic information. If queries are originating from far areas from the given storage node then the amount of traffic generated is high. The traffic can be decreased if the storage nodes are nearer to the query points. This observation leads us to propose a location aided storage management in which storage nodes are shifted towards the query regions. Our contribution from the traffic improvement point of view is 'shifting of storage nodes towards the query regions with new query region and storage node formation algorithms'. The improvements are decrease in query traffic and faster retrieval times. We validate the proposed methods by simulations.
Starting Page	166
Ending Page	170
File Size	332608
Page Count	5
File Format	PDF
ISBN	0780397002
DOI	10.1109/INDIN.2006.275754
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-16
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Condition monitoring Wireless communication Wireless sensor networks Roads Computational modeling Telecommunication traffic Cities and towns Traffic control Information retrieval Large-scale systems
Content Type	Text
Resource Type	Article

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