Specification of MAC protocol for quality of service in IEEE 802.11-based networks under mobility constraints
type: Dataset
contact point: Organization
  fn: CCSD
keyword: mac-protocol
keyword: nodes-mobility
keyword: protocole-mac
keyword: packets-scheduling
keyword: theses
keyword: infoinfo-ohcomputer-science-csother-csoh
keyword: infoeu-reposemanticsdoctoralthesis
keyword: mobilite-des-noeuds
keyword: qos
keyword: ordonnancement-de-paquets
keyword: qualite-de-service
landing page: https://theses.hal.science/tel-00681041
description: This thesis proposes a new approach relating to the packets scheduling algorithm, the cooperation scheme and the nodes' mobility for IEEE 802.11 wireless network family. Considering the QoS delivery process at the MAC level consists the main feature of the proposal research study. The analysis of the current mechanisms leads to keep the protocol EDCF as the basic model for our work platform. In order to overcome the weakness of the earlier 802.11 standard, a new model based on multi-scheduler algorithm, called HCF-T, is proposed. The achieved performances are summarized following several criteria: traffic control, throughput improving, collisions avoidance, and network load decreasing. Furthermore, in the way of getting better results according to the PHY layer, we presented and analyzed a model of cooperative diversity scheme. It included a couple of relaying protocols AAF and DAF supported by a set of combining techniques to backup the signal at the receiver. To support node's mobility within EDCF, we built-up a model of WLAN which able to track node motion and control the access as in real condition. In the case of overlapping APs ranges, we developed a Multi-coverage algorithm aiming to carry out the session associations. As a result, three levels (Low, Medium, and High) of node's speed are discerned. Finally, EDCF has been implemented on various static and dynamic scenarios. The performances, based on the main MAC-layer metrics, such as throughput, End-2-End delay, and jitter, have been classified and comprehensively evaluated
identifier: NNT: 2011PEST1016
issued: 2026-05-24T00:09:05.590401
language: fr
modified: 2026-05-24T00:09:05.590410

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Specification of MAC protocol for quality of service in IEEE 802.11-based networks under mobility constraints
type: Distribution
access URL: https://theses.hal.science/tel-00681041
format: HTML
issued: 2026-05-24T00:09:05.606631
modified: 2026-05-24T00:09:05.530707