Document Details

Document Type : Thesis 
Document Title :
Context-Aware VHO Scheme for Service Continuity in WiMAX/WLAN Networks
مخطط لاستمرار الخدمة في شبكات WiMAX/WLAN مع احاطة السياق في التسليم الرأسي
 
Subject : Wireless LANS 
Document Language : Arabic 
Abstract : As wireless access technologies grow rapidly, the recent studies have focused on granting mobile users the ability of roaming across different wireless networks in a seamless manner thus offering seamless mobility. The different characteristics of each wireless technology with regard to Quality of Service (QoS) brought many challenges for provisioning the continuous services (audio/video streaming) in a seamless way. In this study, we reviewed the existing solutions of heterogeneous networks integrations which offered context-aware methods or service continuity. Also, we present a proposed Context-Aware Management Scheme (CAMS) which maintains service continuity in real-time applications (video/audio) by taking different context information into consideration in WiMAX/WLAN integrated networks. Our proposed solution considers the differences in new wireless environments available resources to improve QoS and user experience by adapting the session parameters after Vertical Handover (VHO). The architecture of the proposed scheme is presented and the signaling messages of the VHO and Context-Aware Management from WiFi to WiMax and vice versa are discussed. The performance of the proposed solution is tested using OPNET, and the results are analyzed and evaluated in terms of different related performance parameters. Results indicated that, the new scheme improves user's experience in terms of different QoS parameters. Simulation results show that, the proposed scheme increases the number of concurrent users that the network can serve at the same time by 80% for video streaming and up to 67% for VoIP calls. 
Supervisor : Nadine Akkari 
Thesis Type : Master Thesis 
Publishing Year : 1433 AH
2012 AD 
Number Of Pages : 98 
Added Date : Sunday, September 7, 2014 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
حنان عيد الحازميAlhazmi, Hanan EidInvestigatorMaster 

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 37320.pdf pdf 

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