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On Access Network Selection Models And Mobility Support In Heterogeneous Wireless Networks
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Book Synopsis On Access Network Selection Models and Mobility Support in Heterogeneous Wireless Networks by : Karl Andersson
Download or read book On Access Network Selection Models and Mobility Support in Heterogeneous Wireless Networks written by Karl Andersson and published by . This book was released on 2010 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mobility Management and Quality-Of-Service for Heterogeneous Networks by : Demetres D. Kouvatsos
Download or read book Mobility Management and Quality-Of-Service for Heterogeneous Networks written by Demetres D. Kouvatsos and published by CRC Press. This book was released on 2022-09-01 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considerable attention is currently devoted worldwide towards mobility issues and challenges such as those arising from the integration of the next generation Internet over terrestrial digital TV, mobile user location management and multi-service mobile networks subject to quality of service (QoS) routing.This book follows Heterogeneous Networks: Performance Modelling and Analysis, describes recent advances in mobile and wireless networks and the Internet reflecting the state-of-the-art technology and research achievements in mobility management, performance enhancement, optimal admission control and QoS worldwide.Technical topics discussed in the book include• Mobility Management;• Optimal Admission Control;• Performance Modelling Studies;• Access Network Coverage;• Quality of Service (QoS);Heterogeneous Networks: Mobility Management and Quality of Service contains recently extended research papers, which have their roots in the series of the HET-NETs International Working Conferences focusing on the 'Performance Modelling and Evaluation of Heterogeneous Networks' under the auspices of the EU Networks of Excellence Euro-NGI and Euro-FGI.Heterogeneous Networks: Mobility Management and Quality of Service, is ideal for personnel in computer/communication industries as well as academic staff and master/research students in computer science, operational research, electrical engineering and telecommunication systems.ContentsPreface; Participants of the Reviewing Process;• Traffic Modelling and Characterisation;• Queueing and Interconnection Networks;• Performance Evaluation Studies;• TCP Performance Analysis;• Congestion Control;• Application Layer Multicast;• Numerical and Software Tools; Author Index; Keyword Index.
Book Synopsis Seamless Secured Roaming Over Heterogeneous Wireless Networks by : Vamsi Krishna Gondi
Download or read book Seamless Secured Roaming Over Heterogeneous Wireless Networks written by Vamsi Krishna Gondi and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future telecom ecosystem will be composed by a set of heterogeneous wireless and cellular networks and user terminal capable to connect and communicate with any of these networks. This thesis contributes for evolution of convergence of wireless heterogeneous networks and to propose novel mechanisms to support low latency handover at authentication level using network selection, security context management and mobility in future telecom ecosystem to allow ubiquitous access to the Internet and services to any individual on the move. This access should be possible anytime anywhere while ensuring the right level of security to the end users as well to the networks. One main objective of the thesis is to define seamless secured roaming mechanisms to enable subscribers or users to roam along different access networks indifferent of access technologies, operators and accessing mechanisms. The proposed thesis provides a roaming & interworking solution using intermediary entity, called Roaming Interworking Intermediary (RII), which enable the secure handover across different access systems and different operator domains without service interruption. RII acts like a broker in the RII architecture between home and visited operator networks. RII provides mobility management, context transfer between service providers, security architecture for authentication and associations of users while roaming, network and presence management. The thesis also defines new mechanisms to enable low latency during handovers and roaming by optimizing and introducing new authentication and mobility models (post handover techniques) in heterogeneous networks. We have provided new methods to solve ever longing issue of user identity and routing of user authentication information from visiting access networks with or without a direct SLA with the home network. We have introduced dynamic authentication model with the proposed RII architecture where a user or subscriber gets authenticated at the visiting network without re-routing authentication information to home networks. The thesis also propose a new mobility mechanisms based on Proxy Mobile IP and extending AAA infrastructure to obtain very low latency during handover in WLAN, WIMAX and 3G networks. Testbeds and comparative studies between proposed and existing models for authentication and mobility are provided. This thesis also provides novel pre handover techniques in heterogeneous networks to ensure seamless handover during mobility and roaming. This method is a network centric approach where the access networks controls whole procedures of network selection, security, mobility etc... with the help of mobile terminals and visiting networks. Therefore, new models for location prediction based Network selection, security context management for authentications, context based mobility models are proposed in this thesis. New supporting protocols and extensions of existing protocol to achieve seamless handovers are proposed in this work. A full testbed is built with the implementation of the proposed protocols to evaluate the proposed of the efficiency of the proposed mechanisms.
Book Synopsis Heterogeneous Wireless Access Networks by : Ekram Hossain
Download or read book Heterogeneous Wireless Access Networks written by Ekram Hossain and published by Springer Science & Business Media. This book was released on 2008-09-18 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous wireless networking, which is sometimes referred to as the fourth-generation (4G) wireless, is a new frontier in the future wireless communications technology and there has been a growing interest on this topic among researchers and engineers in both academia and industry. This book will include a set of research and survey articles featuring the recent advances in theory and applications of heterogeneous wireless networking technology for the next generation (e.g., fourth generation) wireless communications systems. With the rapid growth in the number of wireless applications, services and devices, using a single wireless technology such as a second generation (2G) and third generation (3G) wireless system would not be efficient to deliver high speed data rate and quality-of-service (QoS) support to mobile users in a seamless way. Fourth generation (4G) wireless systems are devised with the vision of heterogeneity in which a mobile user/device will be able to connect to multiple wireless networks (e.g., WLAN, cellular, WMAN) simultaneously. This book intends to provide a unified view on the state-of-the-art of protocols and architectures for heterogeneous wireless networking. The contributed articles will cover both the theoretical concepts and system-level implementation issues related to design, analysis, and optimization of architectures and protocols for heterogeneous wireless access networks.
Book Synopsis Edge Computing-based Access Network Selection for Heterogeneous Wireless Networks by : Yue Li
Download or read book Edge Computing-based Access Network Selection for Heterogeneous Wireless Networks written by Yue Li and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Telecommunication network has evolved from 1G to 4G in the past decades. One of the typical characteristics of the 4G network is the coexistence of heterogeneous radio access technologies, which offers end-users the capability to connect them and to switch between them with their mobile devices of the new generation. However, selecting the right network is not an easy task for mobile users since access network condition changes rapidly. Moreover, video streaming is becoming the major data service over the mobile network where content providers and network operators should cooperate to guarantee the quality of video delivery. In order to cope with this context, the thesis concerns the design of a novel approach for making an optimal network selection decision and architecture for improving the performance of adaptive streaming in the context of a heterogeneous network. Firstly, we introduce an analytical model (i.e. linear discrete-time system) to describe the network selection procedure considering one traffic class. Then, we consider the design of a selection strategy based on foundations from linear optimal control theory, with the objective to maximize network resource utilization while meeting the constraints of the supported services. Computer simulations with MATLAB are carried out to validate the efficiency of the proposed mechanism. Based on the same principal we extend this model with a general analytical model describing the network selection procedures in heterogeneous network environments with multiple traffic classes. The proposed model was, then, used to derive a scalable mechanism based on control theory, which allows not only to assist in steering dynamically the traffic to the most appropriate network access but also helps in blocking the residual traffic dynamically when the network is congested by adjusting dynamically the access probabilities. We discuss the advantages of a seamless integration with the ANDSF. A prototype is also implemented into ns-3. Simulation results sort out that the proposed scheme prevents the network congestion and demonstrates the effectiveness of the controller design, which can maximize the network resources allocation by converging the network workload to the targeted network occupancy. Thereafter, we focus on enhancing the performance of DASH in a mobile network environment for the users which has one access network. We introduce a novel architecture based on MEC. The proposed adaptation mechanism, running as an MEC service, can modify the manifest files in real time, responding to network congestion and dynamic demand, thus driving clients towards selecting more appropriate quality/bitrate video representations. We have developed a virtualized testbed to run the experiment with our proposed scheme. The simulation results demonstrate its QoE benefits compared to traditional, purely client-driven, bitrate adaptation approaches since our scheme notably improves both on the achieved MOS and on fairness in the face of congestion. Finally, we extend the proposed the MEC-based architecture to support the DASH service in a multi-access heterogeneous network in order to maximize the QoE and fairness of mobile users. In this scenario, our scheme should help users select both video quality and access network and we formulate it as an optimization problem. This optimization problem can be solved by IBM CPLEX tool. However, this tool is time-consuming and not scalable. Therefore, we introduce a heuristic algorithm to make a sub-optimal solution with less complexity. Then we implement a testbed to conduct the experiment and the result demonstrates that our proposed algorithm notably can achieve similar performance on overall achieved QoE and fairness with much more time-saving compared to the IBM CPLEX tool.
Book Synopsis Interworking of Wireless LANs and Cellular Networks by : Wei Song
Download or read book Interworking of Wireless LANs and Cellular Networks written by Wei Song and published by Springer Science & Business Media. This book was released on 2012-06-30 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The next-generation of wireless communications are envisioned to be supported by heterogeneous networks by using various wireless access technologies. The popular cellular networks and wireless local area networks (WLANs) present perfectly complementary characteristics in terms of service capacity, mobility support, and quality-of-service (QoS) provisioning. The cellular/WLAN interworking is an effective way to promote the evolution of wireless networks. Interworking of Wireless LANs and Cellular Networks focuses on three aspects, namely access selection, call admission control and load sharing to investigate heterogeneous interworking for cellular/WLAN integrated networks. It not only reveals important observations but also offers useful tools for performance evaluation. The unique traffic and network characteristics are exploited to enhance interworking effectiveness. Theoretical analysis and simulation validation demonstrate benefits of cellular/WLAN interworking in real networks. Last but not the least, this brief highlights promising future research directions to guide interested readers.
Book Synopsis Seamless and Secure Communications over Heterogeneous Wireless Networks by : Jiannong Cao
Download or read book Seamless and Secure Communications over Heterogeneous Wireless Networks written by Jiannong Cao and published by Springer Science & Business Media. This book was released on 2014-01-30 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief provides an overview of the requirements, challenges, design issues and major techniques for seamless and secure communications over heterogeneous wireless networks. It summarizes and provides detailed insights into the latest research on handoff management, mobility management, fast authentication and security management to support seamless and secure roaming for mobile clients. The reader will also learn about the challenges in developing relevant technologies and providing ubiquitous Internet access over heterogeneous wireless networks. The authors have extensive experience in implementing such technologies over heterogeneous wireless networks, thus enabling them to bridge the gap between the theoretical results of research and the real practice. Combining basic theoretical concepts and practical implementation, this brief is ideal for professionals and researchers in the field. Advanced-level students interested in computer communication networks and wireless technologies will also find the content helpful.
Book Synopsis Mobility and Radio Resource Management in Heterogeneous Wireless Networks by : Xiaoshan Liu
Download or read book Mobility and Radio Resource Management in Heterogeneous Wireless Networks written by Xiaoshan Liu and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Mobility and Radio Resource Management in Heterogeneous Wireless Networks" by Xiaoshan, Liu, 劉曉杉, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of the thesis entitled "Mobility and Radio Resource Management in Heterogeneous Wireless Networks" submitted by Xiaoshan Liu for the degree of Doctor of Philosophy at the University of Hong Kong in October 2006 Future generation wireless communication systems are characterized by ubiquitous access and Quality of Service (QoS) guarantees. They consist of IP-based heterogeneous wireless networks (HWN) with overlaid coverage to provide users with a broad range of access services. In a wireless communication system, mobility and radio resource management are essential system functions to support seamless global roaming. However, the functions in HWN systems are very different from those employed in traditional homogeneous wireless networks, and presents new challenges. First, the complexity and large dimension of an HWN system adds to the latency of signaling when signals traverse the component networks. When mobile users make handoffs in HWN, long handoff delay and heavy packet loss will be caused by this prolonged signaling exchange, seriously compromising QoS. Second, every component network is deployed following its own architecture and the characteristics of its particular technology. Therefore, the underlying radio resource management (RRM) functions need to be coordinated in admission control to improve users' experience and system performance. In this study, we propose methods in architecture, protocol and algorithms to solve the above problems in an HWN system. We first introduce a mobility management architecture with an Edge Mobility Agent (EMA) to improve the performance of handoffs between different networks. In the architecture, an EMA is introduced at the edge of the low-tier network to provide a transition area for handoff signaling exchange that effectively eliminates delay and packet loss during a vertical handoff. We also propose a Service Differentiated Handoff Protocol (SDHP) to handle handoffs between cells of the same network. In SDHP, we classify connections' QoS requirements into two classes and propose to use different handoff schemes to handle these connections to satisfy their different QoS requirements. With SDHP, we strike a balance between users' handoff experience and efficiency of radio resource utilization. To optimize radio resource utilization and access selection, we propose two joint admission control schemes to allocate connection requests to different component networks. In one scheme, the bandwidth to be allocated for each user is adaptive to the current resource utilization of every access network. A profit function is established to evaluate the profits gained from a handoff and the target network is selected accordingly. In another scheme, we formulate the joint admission control problem as a Semi- Markov Decision Process, and employ bandwidth adaptation to improve users' experience. We propose to use multi-agent system reinforcement learning to optimize SMDP. With this method, the system will learn an optimal policy from its experience that matches the characteristics of system capacity and user traffic, and maximizes a policy-based system reward. With the above proposals in architecture, protocol and algorithms, we provide a solution combining mobility and radio resource management and realize seamless global roaming with QoS support in HWN systems. (Total number of words: 457) Signature _________________ Xiaoshan Liu
Book Synopsis Encountering Mobile Data Dynamics in Heterogeneous Wireless Networks by : Jie Wang
Download or read book Encountering Mobile Data Dynamics in Heterogeneous Wireless Networks written by Jie Wang and published by Springer. This book was released on 2024-08-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a systematic view of data services in heterogeneous wireless networks, from the perspectives of cause, governing rules, and impact of data’s mobility on such networks. Specifically, it covers application requirements break-down, network modeling, performance analysis and evaluation by examining mobile data dynamics that are particularly important to data service provisioning. Additionally, application prospects such as information dissemination, fog computing, Internet-of-Things and dynamic spectrum access are discussed on the basis of these dynamics. Theoretic analysis, example illustrations, and algorithms are also presented to provide a concise coverage of this important area of networking. Mobile data dynamics refers to the stochastic processes of information, geographical coverage and spectrum, which accompanies the movements of data across wireless networks. Owing to the challenge raised by a high level of network heterogeneity, and the innate requirement on scalability, knowledge on the evolution of mobile data dynamics is essential to the design and deployment of emerging data services and applications, such as Internet-of-Things, data/task offloading and edge-based machine learning/inference. This book is designed for researchers and advanced-level students in the field of wireless networking and edge computing, who seek to understand the models and evolutions of mobile data dynamics for future edge applications. Practitioners, who specialize in the design, operation and maintenance of edge computing systems will also want to purchase this book as a reference.
Book Synopsis Network Selection and Rate Allocation in Heterogeneous Wireless Networks and Systems by : Xiaoyuan Wang
Download or read book Network Selection and Rate Allocation in Heterogeneous Wireless Networks and Systems written by Xiaoyuan Wang and published by . This book was released on 2009 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous wireless network (HWN) technology has emerged in the next generation mobile networks, which enables mobile client (MC) to simultaneously communicate with multiple heterogeneous access networks for better quality of services (QoS) and lower service cost. By the context of conventional network protocols, separately and independently operating network interfaces cannot fully utilize the potential of a HWN. In this thesis, we model and analyze a HWN and system. The issues are identified as the multi-MAC management between MCs and access networks, and the multi-network (multi-NET) management between application servers and access networks. We propose a multi-MAC management scheme over multiple heterogeneous interface MACs to optimize multi-application performance with network selection and rate allocation for uplink traffic. We also propose a multi-NET management scheme for multi-user performance optimization in the downlink traffic, which is network-centric and distributes traffic into multiple access networks by supporting the inter-networking operations. Besides necessary optimization algorithms, procedures to implement our schemes are also provided.
Book Synopsis Heterogeneous Cellular Networks by : Rose Qingyang Hu
Download or read book Heterogeneous Cellular Networks written by Rose Qingyang Hu and published by John Wiley & Sons. This book was released on 2013-04-03 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: A timely publication providing coverage of radio resource management, mobility management and standardization in heterogeneous cellular networks The topic of heterogeneous cellular networks has gained momentum in industry and the research community, attracting the attention of standardization bodies such as 3GPP LTE and IEEE 802.16j, whose objectives are looking into increasing the capacity and coverage of the cellular networks. This book focuses on recent progresses, covering the related topics including scenarios of heterogeneous network deployment, interference management in the heterogeneous network deployment, carrier aggregation in a heterogeneous network, cognitive radio, cell selection/reselection and load balancing, mobility and handover management, capacity and coverage optimization for heterogeneous networks, traffic management and congestion control. This book enables readers to better understand the technical details and performance gains that are made possible by this state-of-the-art technology. It contains the information necessary for researchers and engineers wishing to build and deploy highly efficient wireless networks themselves. To enhance this practical understanding, the book is structured to systematically lead the reader through a series of case-studies of real world scenarios. Key features: Presents this new paradigm in cellular network domain: a heterogeneous network containing network nodes with different characteristics such as transmission power and RF coverage area Provides a clear approach by containing tables, illustrations, industry case studies, tutorials and examples to cover the related topics Includes new research results and state-of-the-art technological developments and implementation issues
Book Synopsis Resource Management for Heterogeneous Wireless Networks by : Amila Tharaperiya Gamage
Download or read book Resource Management for Heterogeneous Wireless Networks written by Amila Tharaperiya Gamage and published by Springer. This book was released on 2017-08-18 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an in-depth discussion on how to efficiently manage resources of heterogeneous wireless networks and how to design resource allocation algorithms to suit real world conditions. Efficiently managing resources of the networks is more crucial now, than ever before, to meet users’ rapidly increasing demand for higher data rates, better quality-of-service (QoS) and seamless coverage. Some of the techniques that can be incorporated within heterogeneous wireless networks to achieve this objective are interworking of the networks, user multi-homing and device-to-device (D2D) communication. Designing resource allocation algorithms to suit real world conditions is also important, as the algorithms should be deployable and perform well in real networks. For example, two of the conditions considered in this book are resource allocation intervals of different networks are different and small cell base stations have limited computational capacity. To address the first condition, resource allocation algorithms for interworking systems are designed to allocate resources of different networks at different time-scales. To address the second condition, resource allocation algorithms are designed to be able to run at cloud computing servers. More of such conditions, algorithms designed to suit these conditions, modeling techniques for various networks and performance analysis of the algorithms are discussed in the book. This book concludes with a discussion on the future research directions on the related fields of study. Advanced-level students focused on communication and networking will use this book as a study guide. Researchers and experts in the fields of networking, converged networks, small-cell networks, resource management, and interference management, as well as consultants working in network planning and optimization and managers, executives and network architects working in the networking industry will also find this book useful as a reference.
Book Synopsis Encountering Mobile Data Dynamics in Heterogeneous Wireless Networks by : Jie Wang
Download or read book Encountering Mobile Data Dynamics in Heterogeneous Wireless Networks written by Jie Wang and published by Springer Nature. This book was released on with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seamless Mobility Across Next Generation Heterogeneous Network by : Deepti Dutt
Download or read book Seamless Mobility Across Next Generation Heterogeneous Network written by Deepti Dutt and published by . This book was released on 2009 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quality of Service in Heterogeneous Mobile and Wireless Networks by : Kire Jakimoski
Download or read book Quality of Service in Heterogeneous Mobile and Wireless Networks written by Kire Jakimoski and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-access mobile devices and overlapping mobile and wireless network deployments have emerged as a reality in the converged telecommunications world. In heterogeneous wireless and mobile environment it is highly important to provide QoS support and seamless handovers between different radio access networks, something that is particularly needed for real-time services. Therefore, this book provides performance analysis of packet scheduling algorithms for cellular mobile networks and for WiMAX. Also, it provides QoS analysis of vertical handover for VoIP and video traffic in a heterogeneous wireless environment. Further, the book proposes improvements for vertical handover decision algorithms regarding the QoS provisioning in mobile and wireless heterogeneous networks, accompanied with numerical analysis and radio access technology selection algorithm. Finally, it gives important discussions and conclusions for improving the QoS in heterogeneous mobile and wireless networks. Hence, this book is useful for all professionals in mobile and wireless networking and to everyone else who is interested in this field of science.
Author :Tadeusz A. Wysocki Publisher :Springer Science & Business Media ISBN 13 :9780387227818 Total Pages :296 pages Book Rating :4.2/5 (278 download)
Book Synopsis Advanced Wired and Wireless Networks by : Tadeusz A. Wysocki
Download or read book Advanced Wired and Wireless Networks written by Tadeusz A. Wysocki and published by Springer Science & Business Media. This book was released on 2004-10-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Part I, we bring ad-hoc networking closer to the reality of practical use. The focus is on more advanced scalable routing suitable for large networks, directed flooding useful in information dissemination networks, as well as self-configuration and security issues important in practical deployments. Part II illustrates the efforts towards development of advanced mobility support techniques (beyond traditional ""mobile phone net"") and Mobile IP technologies.
Book Synopsis Modeling User Mobility for the Simulation of Wireless Ad Hoc Access Networks by : Jan Kraaier
Download or read book Modeling User Mobility for the Simulation of Wireless Ad Hoc Access Networks written by Jan Kraaier and published by Cuvillier Verlag. This book was released on 2008-08-05 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract Simulation of wireless networks is often the only available means for investigation and analysis of the network’s properties. In order for these simulations to produce meaningful results, not only the network infrastructure but also the wireless network users have to be modeled describing their relevant behavior. This thesis deals with mobility modeling for wireless ad hoc access network simulations. For these networks, mobility of users can be identified as one major factor influencing the performance of wireless networks. Properties of mobility models are analyzed and an assessment of their impact on network evaluation is made. The investigated models are analyzed in detailed computer simulations, and general properties are derived by analytical evaluation. Simulations of different models with different ad hoc access networks show the large impact of mobility models and their parameters. Finally, suggestions are made concerning the required detail in mobility modelling for the analyzed networks and applications. From the results, conclusions can be drawn on what kind of mobility model must be selected for which network simulation task. This is a decision that has to be made for every investigation using wireless network simulation.
