NDLI: A distributer, energy-aware, utility-based approach for data transport in wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Wei-Peng Chen Hou, J.C. Lui Sha Caccamo, M.
Copyright Year	2005
Description	Author affiliation: Fujitsu Labs of America, Inc., Sunnyvale, CA (Wei-Peng Chen)
Abstract	Distinct from wireless ad hoc networks, wireless sensor networks are data-centric, application-oriented, collaborative, and energy-constrained in nature. In this paper, we formulate the problem of data transport in sensor networks as an optimization problem, with the objective of maximizing the amount of information (utility) collected at sinks, subject to both the channel bandwidth and energy constraints. We then devise a distributed solution of the convex optimization problem, and explore in three directions. First, we devise a simple node capacity estimation method to on-line measure the node capacity. Second, we linearize the energy constraint by properly setting the value of the system lifetime in advance and controlling the data rate of a node so as to sustain its battery lifetime longer than the specified lifetime. Finally, we incorporate the optimization results into routing so as to provide sensors with opportunities to select better routes. The simulation results show that the utility-based approach balances between system utility and system lifetime
Starting Page	1761
Ending Page	1767
File Size	193207
Page Count	7
File Format	PDF
ISBN	0780393937
DOI	10.1109/MILCOM.2005.1605928
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Wireless sensor networks Sensor phenomena and characterization Bandwidth Batteries Constraint optimization Throughput Collaborative work International collaboration Computer science Mathematical programming/optimization Utility-based Pricing System design Simulations
Content Type	Text
Resource Type	Article

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