Title: A new media access control layer quality of service multicast scheme for IEEE 802.11s-based wireless mesh networks
Authors: Mohamed Guesmia; Mustapha Guezouri; Nader Mbarek
Addresses: Département d'Informatique, Faculté des sciences Exactes et Appliquées, Université d'Oran, BP 1524 EL Mnaoeur – Oran, Algérie ' Département d'Informatique, Faculté des sciences Exactes et Appliquées, Université d'Oran, BP 1524 EL Mnaoeur – Oran, Algérie ' Laboratoire d'Electronique, Informatique et Image (Le2i), Aile des Sciences de l'Ingénieur, 9, avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
Abstract: We propose a new media access control (MAC) layer enabling quality of service (QoS) multicast scheme for IEEE 802.11s networks, where a unicast routing protocol called hybrid wireless mesh protocol (HWMP) is defined. The HWMP protocol is more adapted for best effort traffic that is why its usage is not suitable for real time multimedia applications. The goal of our proposed mechanism is to take into account multicast communication under QoS constraints for the IEEE 802.11s mesh networks where no QoS multicasting has been defined. Our multicasting scheme handles QoS guarantee for real time applications. Indeed, our scheme is based on finding the QoS multicast tree thanks to an end-to-end delay evaluation to cover multicast services. A QoS multicast tree is constructed based on the proactive tree HWMP mechanisms. Simulations results, using Network Simulator 3 (NS 3), show that our scheme improves data multicast transmission overhead as well as network throughput.
Keywords: wireless mesh networks; WMNs; IEEE 802.11s; quality of service; QoS; MAC layer multicast; MAC routing; hybrid wireless mesh protocol; HWMP; real time multimedia applications; medium access control; simulation; data multicast transmission; network throughput.
International Journal of Communication Networks and Distributed Systems, 2014 Vol.13 No.1, pp.25 - 42
Received: 09 Dec 2012
Accepted: 09 Jun 2013
Published online: 28 Jul 2014 *