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Lower bounds on data collection time in sensory networks

Florens, Cédric and Franceschetti, Massimo and McEliece, Robert J. (2004) Lower bounds on data collection time in sensory networks. IEEE Journal on Selected Areas in Communications, 22 (6). pp. 1110-1120. ISSN 0733-8716. http://resolver.caltech.edu/CaltechAUTHORS:FLOieeejsac04

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Abstract

Data collection, i.e., the aggregation at the user location of information gathered by sensor nodes, is a fundamental function of sensory networks. Indeed, most sensor network applications rely on data collection capabilities, and consequently, an inefficient data collection process may adversely affect the performance of the network. In this paper, we study via simple discrete mathematical models, the time performance of the data collection and data distribution tasks in sensory networks. Specifically, we derive the minimum delay in collecting sensor data for networks of various topologies such as line, multiline, and tree and give corresponding optimal scheduling strategies. Furthermore, we bound the data collection time on general graph networks. Our analyses apply to networks equipped with directional or omnidirectional antennas and simple comparative results of the two systems are presented.


Item Type:Article
Additional Information:© Copyright 2004 IEEE. Reprinted with permission. Manuscript received July 15, 2003; revised February 1, 2004. [Posted online: 2004-08-09] This work was supported in part by the Caltech Lee Center for Advanced Networking.
Subject Keywords:Data collection, delay, sensory networks
Record Number:CaltechAUTHORS:FLOieeejsac04
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:FLOieeejsac04
Alternative URL:http://dx.doi.org/10.1109/JSAC.2004.830927
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5314
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:09 Oct 2006
Last Modified:26 Dec 2012 09:05

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