Cache-based MIH for Enhancing Handoff Performance in Heterogeneous Networks

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dc.contributor.authorIsmail, Atif-
dc.description학위논문(석사)아주대학교 일반대학원 :컴퓨터공학과,2012. 8-
dc.description.tableofcontentsTABLE OF CONTENTS 1 Introduction 1 2 Related work 4 2.1 An overview on IEEE 802.21 4 2.1.1 IEEE 802.21 HO procedure 5 2.2 Related works 7 2.2.1 HO predictive schemes 7 2.2.2 Enhanced MIH schemes 8 2.2.3 Best PoA Selection schemes 9 3 CEMIH: Cache based Enhanced MIH 11 3.1 System model 11 3.1.1 Objective 11 3.1.2 System architecture 12 3.2 CEMIH HO procedure 14 3.2.1 Timely updates 14 3.2.2 Selection of POA 17 3.3 MN initiated HOs in CEMIH 23 4 Simulation 27 4.1 Simulation scenarios 27 4.2 Experimental results 29 5 Conclusion and Future Work 38 References 39-
dc.publisherThe Graduate School, Ajou University-
dc.rights아주대학교 논문은 저작권에 의해 보호받습니다.-
dc.titleCache-based MIH for Enhancing Handoff Performance in Heterogeneous Networks-
dc.contributor.affiliation아주대학교 일반대학원-
dc.contributor.department일반대학원 컴퓨터공학과- 8-
dc.description.alternativeAbstractThe next generation network is the era of ubiquitous networking, offering connectivity and services by integrating and utilizing different access network technologies. IEEE 802.21 standard or Media Independent Handover services (MIH) address the problem of integrating different type of network access technologies and provides a way of seamless handovers among different (heterogeneous) networks. However improvement can be made in IEEE 802.21 enabled networks to make it more effective and efficient. In this thesis we proposed an enhanced version of IEEE 802.21 by adding new features in mobile nodes, base stations and Media Independent Information service. Caches and database are introduced for storage of dynamic network information in Base stations and Media Independent Information service (MIIS) server respectfully to decrease the handover delay and therefore increase network efficiency. Similarly timely network information updates are sent by BSs and MIIS to convey dynamic network information later used by MNs to select best Point of Access through fuzzy decision making technique. We also lessen the number of unnecessary HOs thus decrease the overall network load. Evaluation results illustrate the better performance of proposed scheme in different aspects as compared to IEEE 802.21 and other MIH related schemes.-
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Graduate School of Ajou University > Department of Computer Engineering > 3. Theses(Master)
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