Network-Initiated Handover Based on IEEE 802.21 Framework for QoS Service Continuity in UMTS/802.16e Networks

Baek, Joo-Young; Kim, Deok-Jin; Suh, Young-Joo; Hwang, Euiseok; Chung, Young-Don

doi:10.1109/vetecs.2008.482

Cited by 20 publications

(11 citation statements)

References 5 publications

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“…In [2], a vertical handover scheme between UMTS and WiMAX employing the IEEE 802.21 framework is proposed. They use the MIIS service in order to obtain relevant information from neighbourhood networks.…”

Section: Related Workmentioning

confidence: 99%

A Zone-Based Media Independent Information Service for IEEE 802.21 Networks

Buiati

Villalba

Cañas

et al. 2014

International Journal of Distributed Sensor Networks

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Next generation networks integrate different wireless technologies, including Wi-Fi, Wi-Max, and 3GPP (UMTS, HSPA, and/or LTE), in which the mobile node (MN) has the opportunity to switch from one network to another, under an always best connected scheme. In such heterogeneous environment, discovering which types of network connectivity and services are available is a critical challenge. The IEEE 802.21 standard specifies a network information server entity providing network information within a geographical area by which the MN can discover a service or a network. In this paper, we propose a zone-based media independent information service using the IEEE 802.21 standard to accelerate the neighbor discovery procedure. In the proposed scheme, the access networks are associated and grouped in mobility zones, through an efficient set of rules, to minimize the amount of control messages flowing in the core network. Through a NS-2 based simulation, the results demonstrate that the proposed scheme reduces the neighbor discovery delay as well as the signaling overhead if compared with the standard MIIS deployment.

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Section: Related Workmentioning

confidence: 99%

A Zone-Based Media Independent Information Service for IEEE 802.21 Networks

Buiati

Villalba

Cañas

et al. 2014

International Journal of Distributed Sensor Networks

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“…Several papers investigate the usage of IEEE 802.21 for VHO between different systems such as WiMax and WLAN [6] and 3G cellular and WiMax [17]. In [18], the authors propose a network initiated handoff based on IEEE 802.21.…”

Section: Background and Related Workmentioning

confidence: 99%

IEEE 802.21-enabled ALIVE-HO for media streaming in heterogeneous wireless networks

Chen

Zahran

Sreenan

2010

2010 17th IEEE Workshop on Local &Amp; Metropolitan Area Networks (LANMAN)

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Abstract-The convergence of heterogeneous wireless access technologies is an intrinsic part of the long term evolution of wireless networks. This convergence creates network overlays in which achieving seamless and efficient roaming between different technologies, commonly known as vertical handoff (VHO), introduces several challenging design issues. The media independent handover standard (IEEE 802.21) enables information exchange across different layers to improve VHO performance. In this work, we present a framework for integrating an adaptive lifetime-based vertical handoff (ALIVE-HO) algorithm with IEEE 802.21. The proposed framework is implemented and the optimal design value of the application parameter of ALIVE-HO is experimentally determined for video streaming applications under different operating scenarios.

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“…In this area and in the integration of IEEE 802.21 with current mobility approaches, several research works are present in the literature, such as [3] and [4] for vertical handover schemes based on IEEE 802.21, [5] for a vertical handover scheme between UMTS and Wi MAX employing the IEEE 802.21, and [6] for a seamless mobility mechanism for heterogeneous environments.…”

Section: Related Workmentioning

confidence: 99%

Dynamic media independent information server

Neves

Soares

Sargento

2010

The IEEE Symposium on Computers and Communications

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The proliferation of the Internet and wireless access technologies introduced the constant mobile paradigm, where users want to be always connected making use of the best available networks and technologies. Although the IEEE 802.21 framework is able to improve the handover process independent from the access technology, it only supports an information server with static information storage. It is clear that in today's and future environments, the dynamicity of the scenarios is very large and that static information about the available networks is not sufficient. In this paper, we develop a new concept of a dynamic information server that is able to store, manage and deliver real-time dynamic information about the available access technologies, such as network topology, load and QoS, which can be used to help the preparation and decision of the handover process. Using this concept, the two different procedures in the handover preparation phase, candidate access technologies discover and resources availability check, can be performed only in one procedure, optimizing the handover process. The results provided through ns-2 simulations show the benefits of supporting such dynamic information server in a seamless mobility procedure optimized by the IEEE 802.21 framework.Keywords-dynamic information server, media independent handover, 802.21, seamless handover.

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Network-Initiated Handover Based on IEEE 802.21 Framework for QoS Service Continuity in UMTS/802.16e Networks

Cited by 20 publications

References 5 publications

A Zone-Based Media Independent Information Service for IEEE 802.21 Networks

A Zone-Based Media Independent Information Service for IEEE 802.21 Networks

IEEE 802.21-enabled ALIVE-HO for media streaming in heterogeneous wireless networks

Dynamic media independent information server

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