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Statistical model of lossy links in wireless sensor networks | IEEE Conference Publication | IEEE Xplore

Statistical model of lossy links in wireless sensor networks

Publisher: IEEE

Abstract:

Recently, several wireless sensor network studies demonstrated large discrepancies between experimentally observed communication properties and properties produced by wid...View more

Abstract:

Recently, several wireless sensor network studies demonstrated large discrepancies between experimentally observed communication properties and properties produced by widely used simulation models. Our first goal is to provide sound foundations for conclusions drawn from these studies by extracting relationships between location (e.g. distance) and communication properties (e.g. reception rate) using non-parametric statistical techniques. The objective is to provide a probability density function that completely characterizes the relationship. Furthermore, we study individual link properties and their correlation with respect to common transmitters, receivers and geometrical location. The second objective is to develop a series of wireless network models that produce networks of arbitrary sizes with realistic properties. We use an iterative improvement-based optimization procedure to generate network instances that are statistically similar to empirically observed networks. We evaluate the accuracy of our conclusions using our models on a set of standard communication tasks, like connectivity maintenance and routing.
Date of Conference: 15-15 April 2005
Date Added to IEEE Xplore: 13 June 2005
Print ISBN:0-7803-9201-9
Publisher: IEEE
Conference Location: Boise, ID, USA

I. Introduction

It is well known that the performance of many protocols and localized algorithms for wireless multi-hop sensor networks greatly depend on the underlying communication channel. Hence, to evaluate performance in simulation, we must have an accurate communication model. Until recently, only two approaches have been in widespread use in the sensor network community: unit disk modelling and empirical data traces.

References

References is not available for this document.