Vertical Handoff between 802.11 and 802.16 Wireless Access Networks

Zhang, Yongqiang; Zhuang, Weihua; Saleh, A.

doi:10.1109/glocom.2008.ecp.119

Cited by 27 publications

(15 citation statements)

References 40 publications

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“…From the related works, we found that mostly the two works are related to our work which are [15] and [16]. Both papers developed the schemes for the seamless vertical handover between the 802.16 and the 802.11.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…An inter-working architecture of wireless mesh backbone and vertical handoff scheme between the 802.11 and the 802.16 is presented in [15]. The handoff signaling procedure in different scenarios has been discussed with the aim to reduce the signaling overhead on the backbone and to provide a lower handoff delay based on the call admission control (CAC).…”

Section: Related Workmentioning

confidence: 99%

“…where WiMAX c nis the degradation of throughput due to the multihop relay [15]. WiMAX is the WiMAX capacity and is the number of hops (i.e.…”

Section: Network Selection Schemementioning

confidence: 99%

See 2 more Smart Citations

WiFi/WiMAX Seamless Convergence with Adaptive Vertical Handover for Continuity of Internet Access

Saeed¹,

Mohamad²,

Abbas³

et al. 2011

AIT

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The next generation of the wireless networks will consist of several overlapping tiers. Provision of undisrupted communication to mobile users is a challenging task. Handover delay is one of the problematic issues that users are faced in the heterogeneous networks. However, in the case of both the WiMAX and the WiFi technologies which are located at the same base station (BS), the vertical handover (VHO) delay will be less as compared with the two conventional WiMAX/WiFi heterogeneous networks with two different wireless Internet service providers (WISP). Nevertheless, protocol conversion is still adding delay and jitter for data exchange between the needed two technologies. In this paper, in order to reduce the delay in the protocol conversion, a new industrial design for WiWi (WiMAX and WiFi) adaptation layer is proposed. The realization of the interworking between these two standards is discussed and evaluated. The results show that the proposed scheme-with the scenario under study-has better performance than other related works.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

WiFi/WiMAX Seamless Convergence with Adaptive Vertical Handover for Continuity of Internet Access

Saeed¹,

Mohamad²,

Abbas³

et al. 2011

AIT

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show abstract

“…MIH mechanism is a very important contribution since it isolats ANS mechanisms from mechanisms to gather information from the networks. In [21], [22] the authors evaluated the performance of a VHO scheme between 802.11 and 802.16 in terms of signaling cost, handover delay, packet loss and QoS. The authors considered an interworking architecture of wireless mesh backbone and proposed a vertical handoff scheme between 802.11 and 802.16 wireless access networks.…”

Section: Related Workmentioning

confidence: 99%

Multicriteria Optimization of Access Selection to Improve the Quality of Experience in Heterogeneous Wireless Access Networks

Nguyen-Vuong

Agoulmine

Cherkaoui

et al. 2013

IEEE Trans. Veh. Technol.

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Abstract-Wireless technology is one of the revolutionary advancements providing users with ubiquitous data and telephony access anywhere and anytime without any physical connection. The nowadays deployed wireless networks named WiFi, Worldwide Interoperability for Microwave Access (WiMAX), Universal Mobile Telecommunications Systems (UMTS) and Long Term Evolution systems (LTE) have different characteristics that make them complementary in term of performance, coverage and cost. This network variety presents an opportunity to provide better services to the end-users given the advances in mobile terminals. To reach this goal, an appropriate automatic network selection (ANS) mechanism, able to always select the best access network, is needed. This consists on constantly monitoring any type of available access networks, automatically selecting and switching to the best one, as the network that maximizes the users quality of experience taking into account their preferences as well as the terminal and network conditions. ANS is a multi dimension decision-making problem which can be solved by finding an appropriate complex trade-off between possibly conflicting criteria. In this paper, we propose an analytical model to capture the preferences of end-users. Based on this model, we design an ANS mechanism that takes into account all aspects of the trade-off between the quality of the connections, the preferences of the end users and the cost. To highlight the benefits of our approach from the perspectives of both end-users and network operator, we have implemented and tested the solution in a multi technologies simulator. Results show that the proposed solution outperforms the main stream approaches.

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“…In [4] the handover latency for the cases where UDP and TCP carry 2 Journal of Computer Systems, Networks, and Communications MIH signaling messages is compared and some of the design tradeoffs are presented. The evaluation of the performance of a vertical handoff scheme between 802.11 and 802.16 wireless access networks with respect to signaling cost, handoff delay, and QoS support can be found in [5]. Reference [6] evaluates a proposed cross-layer mechanism for making intelligent handover decisions in FMIPv6 in terms of handover latency, packet loss and handover signaling overhead, and [7] evaluates a new enhanced Media Independent Handover Framework (eMIHF) that allows for efficient provisioning and activation of QoS resources in the target radio access technology during the handover preparation phase.…”

Section: Related Workmentioning

confidence: 99%

Simulation of 802.21 Handovers Using ns-2

Marques

Ribeiro

Marques

et al. 2010

Journal of Computer Systems, Networks, and Communications

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The new IEEE 802.21 standard specifies link layer intelligence and other related network information to upper layers in order to optimize handovers between networks of different types, such as WiMAX, Wi-Fi, and 3GPP. This paper makes a short description of 802.21 standard, how it is implemented in ns-2, and the signaling used in a handover between WiMAX and Wi-Fi. The paper also proposes a novel and very simple approach to determine the expected number of handovers in an ns-2 simulation and also evaluates the reliability and scalability of ns-2 when simulating 802.21 scenarios with multiple nodes.

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Vertical Handoff between 802.11 and 802.16 Wireless Access Networks

Cited by 27 publications

References 40 publications

WiFi/WiMAX Seamless Convergence with Adaptive Vertical Handover for Continuity of Internet Access

WiFi/WiMAX Seamless Convergence with Adaptive Vertical Handover for Continuity of Internet Access

Multicriteria Optimization of Access Selection to Improve the Quality of Experience in Heterogeneous Wireless Access Networks

Simulation of 802.21 Handovers Using ns-2

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