Routage avec qualité de service dans les réseaux sans fil ad hoc: QoS dans les Communications sans fil - Image 1

£78.00

ACADEMIQUES Routage avec qualité de service dans les réseaux sans fil ad hoc: QoS dans les Communications sans fil

Name: Routage avec qualite de service dans les reseaux sans fil ad hoc: QoS dans les Communications sans fil
Brand: ACADEMIQUES
Price: 78.0 GBP
Availability: InStock

Computers

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Description

Dans les réseaux sans fil ad hoc, les liens de communication sont sujets à un taux d'erreur important. Ceci est dû à plusieurs facteurs parmi lesquels le bruit électromagnétique ambiant, les obstacles dans le milieu de propagation, les interférences. Or, il est connu que réussir à transmettre des paquets de données sur un lien de mauvaise qualité peut nécessiter plusieurs retransmissions, ce qui conduit à augmenter les délais, la gigue et la charge du réseau, et à diminuer le débit utile. Dans ce contexte, le routage joue un rôle stratégique pour augmenter les performances dans les transmissions. Plusieurs études proposent, par une approche cross-layer, la prise en compte de la fiabilité des liens dans le choix des routes. Cela passe d'abord par la construction de métriques. Dans ce document nous nous focalisons sur les métriques taux d'erreur binaire (au niveau couche physique) et nombre de retransmissions (au niveau couche MAC). Ensuite, pour exploiter ces métriques lors du calcul de routes, une adaptation des algorithmes à la base des protocoles de routage doit être effectuée. Des tests de performances montrent des améliorations significatives des protocoles standards.

Product Specifications

Brand: ACADEMIQUES
Format: paperback
ASIN: 3841637523
Category: Books > Subjects > Biography > Professionals & Academics > Computers
Domain: Amazon UK
Release Date: 10 January 2019
Listed Since: 05 February 2019

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ACADEMIQUES Routage avec qualité de service dans les réseaux sans fil ad hoc: QoS dans les Communications sans fil

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