A Distributed Envelope-based Admission Control For Multihop Ieee 802.11 Ad Hoc Networks

Transmitting real-time traffic in ad hoc networks is such a complex process that even the packets of a traffic flow interfere among themselves. A large variety of mechanisms to provide Quality of Service guarantees to real time traffic have been proposed in the literature; admission control is one of them. This paper proposes a distributed, stateless, and routing protocol decoupled admission control scheme for ad hoc networks that guarantees average delay to more than one traffic class. During the admission process, probing packets are sent from the incoming node to the receiving node of the flow. Based on the traffic and service envelopes of the probing packets, the receiving node decides whether the new flow is accepted or rejected. The admission control scheme was tested in static networks, where it effectively controls the packet delay. In mobile networks, the algorithm was evaluated varying the amount of mobile nodes, which move with a pedestrian pattern. The operation limits of the admission control were determined, to guarantee maximum delay and to control the packet losses of each traffic class. © 2012 IEEE.Chen, L., Heinzelman, W., A survey of routing protocols that support QoS in mobile ad hoc networks (2007) IEEE Network, 21 (6), pp. 30-38. , November-DecemberNazhad, S., Jabari, J., Alguliev, R., A new MAC algorithm for QoS support in ad hoc networks Application of Information and Communication Technologies (AICT), 2011 5th International Conference On, Oct. 2011, pp. 1-6Calafate, C.T., Oliver, J., Cano, J.-C., Manzoni, P., Malumbres, M.P., A distributed admission control system for MANET environments supporting multipath routing protocols (2007) Microprocessors and Microsystems, 31 (4 SPEC. ISS.), pp. 236-251. , DOI 10.1016/j.micpro.2007.01.002, PII S0141933107000178Hanzo, L., Tafazolli, R., Admission control schemes for 802.11-based multi-hop mobile ad hoc networks: A survey (2009) IEEE Communications Surveys & Tutorials, 11 (4), pp. 78-108Ahn, G.-S., Campbell, A.T., Veres, A., Sun, L.-H., Supporting service differentiation for real-time and best-effort traffic in stateless wireless ad hoc networks (SWAN) (2002) IEEE Transactions on Mobile Computing, 1 (3), pp. 192-207. , DOI 10.1109/TMC.2002.1081755Calafate, C., Cano, J.C., Manzoni, P., Malumbres, M., A QoS architecture for MANETs supporting real-time peer-to-peer multimedia applications Seventh IEEE International Symposium on Multimedia, Dec. 2005Valaee, S., Li, B., Distributed call admission control for ad hoc networks (2002) Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th, 2, pp. 1244-1248Cetinkaya, C., Kanodia, V., Knightly, E.W., Scalable services via egress admission control (2001) IEEE Transactions on Multimedia, 3 (1), pp. 69-81. , DOI 10.1109/6046.909595, PII S1520921001018697Del Pilar Salamanca, M., Pena, N., Da Fonseca, N., Evaluation of an envelope-based access control scheme in multihop IEEE 802.11 ad hoc networks Communications (LATINCOM), 2011 IEEE Latin-American Conference On, Oct. 2011Schlembach, J., Skoe, A., Yuan, P., Knightly, E., Design and implementation of scalable admission control (2001) Lecture Notes in Computer ScienceSchlembach, J., Skoe, A., Yuan, P., Knightly, E., Software for Scalable Admission Control, , http://networks.rice.edu/ext/egress/index.html, Online. AvailableEstepa, R., Vozmediano, J., Estepa, A., Background noise influence on VoIP traffic profile (2004) Lecture Notes in Computer Science, 3311, pp. 13-24. , V. Roca and F. Rousseau, Eds. Springer Berlin / Heidelber