Mobility management for NGN WiMAX: Specification and implementation

Pedro Neves, Ricardo Matos, Bruno Sousa, Giada Landi, Susana Sargento, Kostas Pentikousis, Marilia Curado, Esa Piri

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

5 Citations (Scopus)


The anticipated deployment of IEEE 802.16-based wireless metropolitan area networks (WMANs) will usher a new era in broadband wireless communications. The adoption of the WiMAX technology for remote areas, for example, can address challenging scenarios in a cost-effective manner. While WiMAX Forum documents describe an architecture that inherently supports Quality of Service and mobility, several areas are left uncovered. We present an architecture which integrates WiMAX, Quality of Service and mobility management frameworks over heterogeneous networks, developing mechanisms for seamless handovers. Our approach takes into consideration the expected deployment of, on the one hand, the IEEE 802.21 (Media Independent Handover) proposed standard and, on the other, the IETF-standardized Next Steps in Signalling framework. The first contributions of this paper comprise a specification of the mechanisms for make-before-break vertical handovers taking Quality of Service signalling into account and the integration in a heterogeneous environment. The latter contribution is an empirical evaluation of the proposed architecture using a testbed demonstrator. We quantify the processing delays of the main components in our prototype implementation when a terminal hands over between different access technologies, demonstrating the potential of the proposed architecture.
Original languageEnglish
Title of host publicationIEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks & Workshops, WOWMOM 2009
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Print)978-1-4244-4440-3, 978-1-4244-4439-7
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
Event10th IEEE International Symposium on a World of Wireless, Mobile, and Multimedia Networks, WoWMoM 2009 - Kos, Greece
Duration: 15 Jun 200919 Jun 2009


Conference10th IEEE International Symposium on a World of Wireless, Mobile, and Multimedia Networks, WoWMoM 2009
Abbreviated titleWoWMoM 2009


  • WiMAX
  • IEEE 802.16
  • mobility management
  • IEEE 802.21
  • media independent handover services


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