IEEE 802.21 based vertical handover in WiFi and WiMAX networks

Bathich, Ammar; Mohd, Dani Baba; Ibrahim, Muhammad Amin

doi:10.1109/isci.2012.6222682

Cited by 15 publications

(6 citation statements)

References 13 publications

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“…Based on the signal to interference plus noise ratio (SINR), the authors in [24] propose a vertical handover between WIFI and WIMAX. According to a custom mathematical function, the equivalent SINR value for each network is computed and compared.…”

Section: Vhas For Heterogeneous Networkmentioning

confidence: 99%

ARM-FPGA-based platform for reconfigurable wireless communication systems using partial reconfiguration

et al. 2017

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Today, wireless devices generally feature multiple radio access technologies (LTE, WIFI, WIMAX, ...) to handle a rich variety of standards or technologies.These devices should be intelligent and autonomous enough in order to either reach a given level of performance or automatically select the best available wireless technology according to standards availability. On the hardware side, system on chip (SoC) devices integrate processors and field-programmable gate array (FPGA) logic fabrics on the same chip with fast inter-connection. This allows designing software/hardware systems and implementing new techniques and methodologies that greatly improve the performance of communication systems. In these devices, Dynamic partial reconfiguration (DPR) constitutes a well-known technique for reconfiguring only a specific area within the FPGA while other parts continue to operate independently. To evaluate when it is advantageous to perform DPR, adaptive techniques have been proposed. They consist in reconfiguring parts of the system automatically according to specific parameters. In this paper, an intelligent wireless communication system aiming at implementing an adaptive OFDM-based transmitter and performing a vertical handover in heterogeneous networks is presented. An unified physical layer for WIFI-WIMAX networks is also proposed. The system was implemented and tested on a ZedBoard which features a Xilinx Zynq-7000-SoC. The performance of the system is described, and simulation results are presented in order to validate the proposed architecture.

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Section: Vhas For Heterogeneous Networkmentioning

confidence: 99%

ARM-FPGA-based platform for reconfigurable wireless communication systems using partial reconfiguration

et al. 2017

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“…Authors have proven the NE in the model with and without users knowing each other's location. A SINR-based approach to maximize the QoS of the users is also considered in [35]. Here, the authors have proposed an SINR-based mechanism with QoS support for seamless handover and vertical handover for coexist heterogeneous WiMAX and Wi-Fi networks.…”

Section: Quality-aware Approaches and Smart Connectivitymentioning

confidence: 99%

“…For the sake of comparison and in order to evaluate the performance of the smart connectivity functionality, we devised another AP allocation strategy that acts as a comparison candidate. This strategy associates an AP to an STA according to the SINR achieved by each AP, as proposed in [35].…”

Section: Table 1: Bit Rate Requirementsmentioning

confidence: 99%

Untitled

2015

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The What to do With the Wi-Fi Wild West H2020 project (Wi-5) combines research and innovation to propose an architecture based on an integrated and coordinated set of smart Wi-Fi networking solutions. The resulting system will be able to efficiently reduce interference between neighbouring Access Points (APs) and provide optimised connectivity for new and emerging services. The project approach is expected to develop and incorporate a variety of different solutions, which will be made available through academic publications, in addition to other dissemination channels.The present document includes the specification of the first version of the Cooperative AP Functionalities, which are being defined within Work Package (WP) 4 of the Wi-5 project. In this deliverable after the Executive Summary and the literature review, the first version of the Cooperative Access Point Solutions are illustrated. In particular, a section with a general cooperative framework that jointly includes functionalities for an optimized AP channel assignment, Radio Resource Management (RRM) and smart AP allocation is presented. The optimized APs channel assignment enables an important improvement of the network performance in terms of SINR. Furthermore, the results analysed in this deliverable validate the flexibility and practicality of the proposed algorithm in different scenarios. The smart AP allocation solution introduces the innovative Fittingness Factor (FF) concept that efficiently matches the suitability of the available spectrum resource to the application requirements. Moreover, the basis required for a seamless mobility functionality in the framework is also included in the section. Next, a first assessment of the algorithms proposed in this deliverable is presented through the analysis of several performance results in a simulated environment. In detail, the AP channel assignment and the smart AP allocation algorithms are assessed and compared against other strategies found in the literature. Finally, a set of monitoring procedures to be conducted on the Wi-5 APs and on the Wi-5 controller are presented. These procedures will allow the correct deployment of the cooperative APs functionalities proposed in this deliverable. After summarising the main conclusions, the document ends with future work.

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“…Media independent preauthentication entity facilitated handover by authenticating with higher layer before L2 layer handover is made. Ammar [12] implemented Signal to Interference and Noise Ratio (SINR) based vertical handover and showed that proposed SINR based handover is far better than signal strength based handover in terms of throughput. Meriem [13]gave an overview of different types of existing vertical handover decision strategies.…”

Section: Related Workmentioning

confidence: 99%

Mobility Management in Heterogeneous Wireless Networks

Zayaraz¹

2014

IJRET

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Ever increasing demands of users and rapid development of telecommunication technologies have led to the evolution of 4G heterogeneous wireless network. Further, 4G with heterogeneous network environment will provide features such as seamless internet connectivity between different wireless networks, "Always Best Connected" service and "Anywhere Anytime Service". Due to the different characteristics of heterogeneous wireless networks such as network coverage, bandwidth, data rate etc designing an efficient vertical handoff is the most challenging issue. To provide a seamless connectivity to the mobile users, there is a strong demand for the integration of different wireless access networks. The Worldwide Interoperability for Microwave Access (IEEE 802.16 WIMAX) networks has the capability to provide global network coverage with high data rate, but their deployment cost is high. The Wireless Local Area Network (IEEE 802.11 WLAN) has the capability to provide high data rate at a very low cost but their services are limited to a very small geographical region. By integrating these two challenging technologies WIMAX and WLAN several benefits can be achieved, i.e. increased network coverage, load balancing and better Quality of Service (QoS). Therefore, the integration of WLAN and WIMAX provides seamless internet connectivity and high data rate at low cost to the wireless mobile users. In this paper different integration mechanisms of WIMAX and WLAN are investigated. To be more precise, an internetworking mechanism for the integration of WLAN and WIMAX based on two different types of coupling, i.e loose coupling and tight coupling are implemented. Also an efficient vertical handoff based on IEEE 802.21 Media Independent Handoff approach is implemented on different interworking architecture of WLAN and WIMAX. The simulated results shows that the tight coupling is better than the loose coupling for the applications implemented using Opnet. And also it is found that an efficient handover can be achieved when handover is done based on signal strength and bandwidth.

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IEEE 802.21 based vertical handover in WiFi and WiMAX networks

Cited by 15 publications

References 13 publications

ARM-FPGA-based platform for reconfigurable wireless communication systems using partial reconfiguration

ARM-FPGA-based platform for reconfigurable wireless communication systems using partial reconfiguration

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Mobility Management in Heterogeneous Wireless Networks

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