Optimal tradeoff between exposed and hidden nodes in large wireless networks

Research output: Book/ReportReportAcademic

2 Citations (Scopus)

Abstract

Wireless networks equipped with the CSMA protocol are subject to collisions due to interference. For a given interference range we investigate the tradeoff between collisions (hidden nodes) and unused capacity (exposed nodes). We show that the sensing range that maximizes throughput critically depends on the activation rate of nodes. For infinite line networks, we prove the existence of a threshold: When the activation rate is below this threshold the optimal sensing range is small (to maximize spatial reuse). When the activation rate is above the threshold the optimal sensing range is just large enough to preclude all collisions. Simulations suggest that this threshold policy extends to more complex linear and non-linear topologies.
LanguageEnglish
Place of PublicationEindhoven
PublisherEurandom
Number of pages21
StatePublished - 2010

Publication series

NameReport Eurandom
Volume2010015
ISSN (Print)1389-2355

Fingerprint

tradeoffs
thresholds
activation
collisions
interference
reuse
topology
simulation

Cite this

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title = "Optimal tradeoff between exposed and hidden nodes in large wireless networks",
abstract = "Wireless networks equipped with the CSMA protocol are subject to collisions due to interference. For a given interference range we investigate the tradeoff between collisions (hidden nodes) and unused capacity (exposed nodes). We show that the sensing range that maximizes throughput critically depends on the activation rate of nodes. For infinite line networks, we prove the existence of a threshold: When the activation rate is below this threshold the optimal sensing range is small (to maximize spatial reuse). When the activation rate is above the threshold the optimal sensing range is just large enough to preclude all collisions. Simulations suggest that this threshold policy extends to more complex linear and non-linear topologies.",
author = "{Ven, van de}, P.M. and A.J.E.M. Janssen and {Leeuwaarden, van}, J.S.H.",
year = "2010",
language = "English",
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}

Optimal tradeoff between exposed and hidden nodes in large wireless networks. / Ven, van de, P.M.; Janssen, A.J.E.M.; Leeuwaarden, van, J.S.H.

Eindhoven : Eurandom, 2010. 21 p. (Report Eurandom; Vol. 2010015).

Research output: Book/ReportReportAcademic

TY - BOOK

T1 - Optimal tradeoff between exposed and hidden nodes in large wireless networks

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AU - Leeuwaarden, van,J.S.H.

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AB - Wireless networks equipped with the CSMA protocol are subject to collisions due to interference. For a given interference range we investigate the tradeoff between collisions (hidden nodes) and unused capacity (exposed nodes). We show that the sensing range that maximizes throughput critically depends on the activation rate of nodes. For infinite line networks, we prove the existence of a threshold: When the activation rate is below this threshold the optimal sensing range is small (to maximize spatial reuse). When the activation rate is above the threshold the optimal sensing range is just large enough to preclude all collisions. Simulations suggest that this threshold policy extends to more complex linear and non-linear topologies.

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