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Ad Hoc Wireless Networks With Noisy Links (2003)
| Citations: | 18 - 0 self |
BibTeX
@MISC{Booth03adhoc,
author = {Lorna Booth and Jehoshua Bruck and Matthew Cook and Massimo Franceschetti},
title = {Ad Hoc Wireless Networks With Noisy Links},
year = {2003}
}
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Abstract
Models of ad-hoc wireless networks are often based on the geometric disc abstraction: transmission is assumed to be isotropic, and reliable communication channels are assumed to exist (apart from interference) between nodes closer than a given distance. In reality communication channels are unreliable and communication range is generally not rotationally symmetric. In this paper we examine how these issues affect network connectivity. Using ideas from percolation theory, we compare networks of geometric discs to other simple shapes, including probabilistic connections, and we find that when transmission range and node density are normalized across experiments so as to preserve the expected number of connections (ENC) enjoyed by each node, the discs are the "hardest" shape to connect together. In other words, anisotropic radiation patterns and spotty coverage allow an unbounded connected component to appear at lower ENC levels than perfect circular coverage allows. This indicates that connectivity claims made in the literature using the geometric disc abstraction will in general hold also for the more irregular shapes found in practice.
Keyphrases
ad hoc wireless network noisy link geometric disc abstraction communication range spotty coverage network connectivity probabilistic connection geometric disc perfect circular coverage enc level reliable communication channel irregular shape node density general hold unbounded connected component connectivity claim reality communication channel anisotropic radiation pattern transmission range hardest shape expected number simple shape ad-hoc wireless network percolation theory
