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A New Technique to Expedite RSVP Path Re-establishments in 802.11 Wireless LANs

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Abstract

This paper proposes a novel scheme that exploits the Inter Access Point Protocol (IAPP), currently standardized by IEEE, in order to expedite the RSVP path re-establishment that takes place after a handover from one WLAN Access Point (AP) to another. The prime characteristic of this scheme is that a WLAN AP serves as an RSVP proxy and starts RSVP signaling on behalf of the Mobile Node much earlier compared with the standard RSVP operation in a WLAN. Therefore, a considerable handover latency reduction can be achieved, which can be as high as 20%. To evaluate the performance and the benefits of the proposed scheme, we display and discuss a series of simulation results. In addition, we present in detail its operation and we discuss the RSVP objects that should be transferred across APs through IAPP. In this context, we also explain the structure of the proposed RSVP Information Elements. Our simulation results show considerable performance improvement, especially in heavy traffic load conditions. Note that the proposed scheme can work with the standard RSVP protocol, as well as with partial path re-establishment methods and can be combined with advanced admission control algorithms in the AP.

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References

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Authors and Affiliations

  1. Department of Informatics & Telecommunications, Communication Networks Laboratory, University of Athens, Panepistimiopolis, 15784, Athens, Greece

    Nikos Passas, Georgios Nikolaidis & Mary Katsamani

  2. Motorola, 32 Kifissias Avenue, 15125, Athens, Greece

    Apostolis K. Salkintzis

Authors
  1. Nikos Passas
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  2. Apostolis K. Salkintzis
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  3. Georgios Nikolaidis
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  4. Mary Katsamani
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Correspondence to Nikos Passas.

Additional information

Nikos Passas received his Diploma (honors) from the Department of Computer Engineering, University of Patras, Greece, and his Ph.D. degree from the Department of Informatics and Telecommunications, University of Athens, Greece, in 1992 and 1997, respectively. Since 1995, he has been with the Communication Networks Laboratory of the University of Athens, working as a research associate in a number of national and European research projects. He has also served as a guest editor and technical program committee member in prestigious magazines and conferences, such as IEEE Wireless Communications Magazine, Wireless Communications and Mobile Computing Journal, IEEE Vehicular Technology Conference, IEEE Globecom, etc. Dr. Passas has published more than 50 papers in peer-reviewed journals and international conferences and has also published 3 book chapters. His research interests are in the protocol design and performance analysis for mobile multimedia communications. He is particularly interested in QoS for wireless networks, mobility management, mobile network architectures and protocols, etc. Dr. Passas is a member of the IEEE and a member of the Technical Chamber of Greece.

Apostolis K. Salkintzis received his Diploma in 1991 (honors) and his Ph.D. degree in 1997, both from the Department of Electrical and Computer Engineering, Democritus University of Thrace, Xanthi, Greece. During 1998–2000 he was a sessional lecturer and post-doctoral fellow at the Department of Electrical and Computer Engineering, University of British Columbia, Canada. In 2000 he joined the Institute of Space Applications and Remote Sensing (ISARS) of the National Observatory of Athens, Greece, where he conducted research on digital satellite communication systems. Since September 1999 he has been with Motorola Inc., working on the design and standardization of wireless communication networks, focusing in particular on GPRS, UMTS, WLANs and TETRA. He has published more than 45 papers in referred journals and conferences and has edited two books. He is currently serving as vice-chairman of QoS Interest Group (QoSIG) of IEEE Multimedia technical committee. His primary research activities lie in the areas of wireless communications and mobile networking, and particularly on mobility management, IP multimedia over mobile networks, mobile network architectures and protocols, and QoS for wireless networks. Until 2002 he was an active participant and contributor in 3GPP, and was an editor of 13 3GPP specifications. Dr. Salkintzis is a senior member of IEEE and a member of the Technical Chamber of Greece.

Georgios Nikolaidis received the Dipl.-Inform. degree in computer science and engineering from University of Dortmund, Germany in 1995. He is currently working towards his Ph.D. at the Communication Networks Laboratory (CNL), Department of Informatics and Telecommunications, University of Athens. His research interests focus on the Analysis of Mobile Network Architectures as well as Modeling and Performance Evaluation of Mobile Communication Protocols (combining Formal Description Techniques with Performance Evaluation Techniques).

Mary E. Katsamani received her B.Sc. and M.Sc. from the Department of Informatics and Telecommunications of the University of Athens, in 2001 and 2004 respectively. Her graduate study about UMTS services was awarded from Ericsson in 2002. In parallel, she has been involved in a project funded by the Greek Telecom Operator (OTE) about introduction of UMTS in Greece. Her interests include wireless and mobile networks. Currently she is a teacher of Infomatics in Secondary School and she is about to start a Ph.D.

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Passas, N., Salkintzis, A.K., Nikolaidis, G. et al. A New Technique to Expedite RSVP Path Re-establishments in 802.11 Wireless LANs. Wireless Pers Commun 33, 69–86 (2005). https://doi.org/10.1007/s11277-005-6326-4

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  • DOI: https://doi.org/10.1007/s11277-005-6326-4

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