An Energy-Aware Data-Centric Generic Utility Based Approach in Wireless Sensor Networks

Chen, Wei-Peng; Sha, Lui

Permalink

https://hdl.handle.net/2142/10783 Copy

Description

Title

An Energy-Aware Data-Centric Generic Utility Based Approach in Wireless Sensor Networks

Author(s)

• Chen, Wei-Peng
• Sha, Lui

Issue Date

2004-02

Keyword(s)

wireless sensor network

Abstract

Distinct from wireless ad hoc networks, wireless sensor networks are data-centric, application-oriented, collaborative, and energy-constrained in nature. In this paper, formulate the problem of data transport in sensor networks as an optimization problem whose objective function is to maximize the amount of information (utility) collected at sinks (subscribers), subject to the flow, energy and channel bandwidth constraints. Also, based on a Markov model extended from [bianchi:00], we derive the link delay and the node capacity in both the single and multi-hop environments, and figure them in the problem formulation. We study three special cases under the problem formulation. In particular, we consider the energy-aware flow control problem, derive an energy aware flow control solution, and investigate via ns-2 simulation its performance. The simulation results show that the proposed energy-aware flow control solution can achieve high utility and low delay without congesting the network.

Type of Resource

text

Permalink

http://hdl.handle.net/2142/10783

Copyright and License Information

You are granted permission for the non-commercial reproduction, distribution, display, and performance of this technical report in any format, BUT this permission is only for a period of 45 (forty-five) days from the most recent time that you verified that this technical report is still available from the University of Illinois at Urbana-Champaign Computer Science Department under terms that include this permission. All other rights are reserved by the author(s).

Owning Collections