Title: A distributed QoS mechanism for ad hoc network

Authors: Cláudia Jacy Barenco Abbas; Luis Javier García Villalba; Ana Lucila Sandoval Orozco

Addresses: Grupo de Análisis, Seguridad y Sistemas (GASS), Departamento de Ingeniería del Software e Inteligencia Artificial (DISIA), Facultad de Informática, Despacho 431, Universidad Complutense de Madrid (UCM), Calle Professor José García Santesmases s/n, Ciudad Universitaria, 28040 Madrid, Spain ' Grupo de Análisis, Seguridad y Sistemas (GASS), Departamento de Ingeniería del Software e Inteligencia Artificial (DISIA), Facultad de Informática, Despacho 431, Universidad Complutense de Madrid (UCM), Calle Professor José García Santesmases s/n, Ciudad Universitaria, 28040 Madrid, Spain ' Grupo de Análisis, Seguridad y Sistemas (GASS), Departamento de Ingeniería del Software e Inteligencia Artificial (DISIA), Facultad de Informática, Despacho 431, Universidad Complutense de Madrid (UCM), Calle Professor José García Santesmases s/n, Ciudad Universitaria, 28040 Madrid, Spain

Abstract: This paper presents a new mechanism of QoS Medium Access in ad hoc IEEE 802.11 network. The Distributed Coordination Function Ad Hoc (DCFAH) offers a fair medium access mechanism and a minimum bandwidth to all stations that ask for Quality of Service (QoS). Also is concerned about the delay and jitter metrics. The DCFAH uses the Enhanced Distributed Channel Access (EDCA) mechanism to provide the difference of QoS services among flows inside a station. The fairness of DCFAH is provided with the use of a distributed control mechanism during the QoS period. The DCFAH also provides the Best Effort (BE) service to applications that do not need QoS.

Keywords: IEEE 802.11; medium access control; MAC; QoS; quality of service; EDCA; ad hoc networks; enhanced distributed channel access; distributed control.

DOI: 10.1504/IJAHUC.2012.049282

International Journal of Ad Hoc and Ubiquitous Computing, 2012 Vol.11 No.1, pp.25 - 33

Received: 31 Aug 2010
Accepted: 06 Mar 2011
Published online: 29 Sep 2012 *

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