Decentralized Utility-based Sensor Network Design

Autor: Mitali Singh, Bhaskar Krishnamachari, Narayanan Sadagopan
Rok vydání: 2006
Předmět:
Zdroj: Mobile Networks and Applications. 11:341-350
ISSN: 1572-8153
1383-469X
Popis: Wireless sensor networks consist of energy-constrained sensor nodes operating unattended in highly dynamic environments. In this paper, we advocate a systematic decentralized approach towards the design of such networks based on utility functions. A local utility function is defined for each sensor node in the network. While each sensor node "selfishly" optimizes its own utility, the network as a "whole" converges to a desired global objective. For the purpose of demonstrating our approach, we consider the following two separate case studies for data gathering in sensor networks: (a) construction of a load balanced tree and (b) construction of an energy balanced tree. Our work suggests a significant departure from the existing view of sensor networks as consisting of cooperative nodes, i.e. "selfish" sensor nodes is a useful paradigm for designing efficient distributed algorithms for these networks.
Databáze: OpenAIRE