Download or read book On Integrated Architecture for Multi hop Wireless Networks written by Anurag Gupta and published by . This book was released on 2007 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation we focus on design and analysis of an integrated architecture for useful and efficient multihop wireless networks (MWNs). We first concentrate on development of on-demand medium access control (MAC) protocols for the network and cross layer optimizations to improve network performance using multiple beam antennas. We show the inherent inability of predominantly used MAC protocols to fully exploit the benefits of multiple beam antenna arrays and demonstrate the superiority of our protocols. We also present our receiver oriented MAC protocol to provide differentiated service classes on these antenna systems, the first successful attempt to achieve this goal. We next look at the security of communication over multihop wireless networks. In this section we also provide a highly scalable and completely distributed protocol to generate symmetric group communication keys. We then move on to queueing analysis of multihop wireless networks which cannot be quantified using classical queueing theory. We present our theory of Exclusive Access Queues (EAQs) and show how to apply them to MWNs. Finally, we present the design of the wireless device driver we implemented to run our protocols on wireless devices. We show the architecture best suited for the requirements of our protocols and the inter-operation between various driver entities.

Download or read book An Integrated Architecture for Multi hop Infrastructure Wireless Networks written by Anindo Mukherjee and published by . This book was released on 2006 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid growth in wireless networks has resulted in a growing need for fast and ubiquitous connectivity. Most networks deployed currently are single hop access point (AP) networks, where the end user is connected to an AP if it is within communication range of the AP. While such networks are popular and have been deployed extensively, the inherent low range of Wi-Fi networks limits their coverage. Again, high deployment costs of high speed wired networks do not allow single hop networks to provide ubiquitous and cheap connectivity. Recently, a highly viable solution to the above problem has appeared in the form of multihop infrastructure networks (MINs). A MIN is a network of wireless routers connected to an AP and provides multihop coverage in an area. These networks may present a highly viable and cheap alternative to the problem of universal coverage. While the concept of MINs is exciting, deployment of such networks cannot commence without a thorough inspection of the performance, handoffs mechanisms and security considerations involved. The aim of this thesis is to provide a complete architecture for MINs and explore the various aspects that affect the performance and security of such networks. We solve the problem in a number of phases. First, we provide an analytical framework using which the end-to-end delay and throughput characteristics of the network can be predicted. This framework can then be used to predict the scalability of such networks. The model can also be used for bottleneck determination in such networks and to provide effective routing techniques. The behavior of the delay characteristics of MINs have been effectively addressed by taking both bulk traffic and single arrival traffic into consideration. The queue modeling for forwarder nodes in MINs is complicated by the fact that traditional queuing mechanisms are no longer valid as the arrival and departure processes can never be simultaneous. We propose two different approaches to queuing analysis in MINs. Secondly, we propose to provide an architecture for handoffs in MINs. This involves defining a handoff for MINs, and outlining a method to perform handoffs depending on the parameters that need to be optimized. The suggested protocols should also aim towards minimizing the delays and message overheads involved in the handoff process. Protocols have also been proposed to reduce the delay and message overheads involved in handoffs by the use of pre-authentication mechanisms. Finally, we propose a security architecture for MINs. The first part of this security architecture addresses the problem of key distribution for group communication. The second part of the security architecture allows communication between the members of a MIN by the establishment of robust key agreement protocols for node-to-node pair wise communication. These protocols can be used for ad-hoc network communication as well.

Download or read book Integrated Architecture and Routing Protocols for Heterogeneous Wireless Networks written by and published by . This book was released on 2006 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the main challenges in next generation wireless networks is to integrate heterogeneous wireless technologies to provide seamless connectivity, with guaranteed Quality of Service (QoS), to mobile users "anytime, anywhere and with any device". In this dissertation, we investigate the problem of integrating cellular networks and Wireless Local Area Networks (WLANs) with the multi-hop communication paradigm used in Mobile Ad hoc Networks (MANETs) to exploit all the connectivity alternatives available to different types of Mobile Stations (MSs). We propose an integrated architecture based on three basic functionalities, namely, topology discovery, gateway discovery, and link quality estimation. We combine these three functionalities into an integrated routing mechanism that exploits all connectivity alternatives available in a generic heterogeneous scenario. Then, we provide a simulation-based analysis of our architecture and integrated routing mechanism in different heterogeneous networking scenarios. Our results show improvements in network's capacity and coverage achieved by our architecture as compared to isolated networks. The results also highlight the importance of the link quality estimation in providing QoS to users, as well as indicate that multi-hop links can be exploited in a controlled network configuration, but the QoS in multi-hop routes cannot be always guaranteed. Furthermore, we address the problem of selecting the best connectivity opportunity for a given service type based on the applications' QoS requirements, as well as on the network condition and user mobility profile. We propose the Connectivity opportunity Selection Algorithm (CSA) that allows MSs to select the connectivity opportunity most appropriate for a given type of service and mobility profile. Furthermore, we describe how our proposed selection algorithm can be introduced into the IEEE 802.21 standard for Media Independent Handover services.

Download or read book Security for Multihop Wireless Networks written by Shafiullah Khan and published by CRC Press. This book was released on 2014-04-15 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Security for Multihop Wireless Networks provides broad coverage of the security issues facing multihop wireless networks. Presenting the work of a different group of expert contributors in each chapter, it explores security in mobile ad hoc networks, wireless sensor networks, wireless mesh networks, and personal area networks.Detailing technologies

Download or read book Wireless Sensor Networks written by S. R. Vijayalakshmi and published by Stylus Publishing, LLC. This book was released on 2018-04-25 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Sensor Networks is an essential guide for anyone interested in wireless communications for sensor networks, home networking, or device hacking. It covers a large number of topics encountered in the architecture, application, and recent advancements of a wireless sensor network, including hardware and software architectures, the Internet of Things, routing and security, MANETs, MEMS, Zigbee, TDMA, securing networks for WiFi, ubiquitous sensor networks, underwater, mobile, and multimedia wireless networks. Features: • Includes a wide range of applications to industry, science, transportation, civil infrastructure, and security • Covers the Internet of Things (IoT), MEMS, Zigbee, TDMA, mobile wireless networks, and more • Features article on securing networks for WiFi by the United States Department of Homeland Security (DHS) Cybersecurity Engineering

Download or read book Design and Optimization of Node Architecture for Application Specific Multi hop Wireless Networks written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Real time Communication Protocols for Multi hop Ad hoc Networks written by Reinhard Gotzhein and published by Springer Nature. This book was released on 2020-01-01 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on core functionalities for wireless real-time multi-hop networking with TDMA (time-division multiple access) and their integration into a flexible, versatile, fully operational, self-contained communication system. The use of wireless real-time communication technologies for the flexible networking of sensors, actuators, and controllers is a crucial building block for future production and control systems. WirelessHART and ISA 100.11a, two technologies that have been developed predominantly for industrial use, are currently available. However, a closer analysis of these approaches reveals certain deficits. Current research on wireless real-time communication systems shows potential to remove these limitations, resulting in flexible, versatile, and robust solutions that can be implemented on today’s low-cost and resource-constrained hardware platforms. Unlike other books on wireless communication, this book presents protocols located on MAC layer and above, and build on the physical (PHY) layer of standard wireless communication technologies.

Download or read book Multihop Mobile Wireless Networks written by Kannan Govindan and published by CRC Press. This book was released on 2022-09-01 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multihop Mobile Wireless Networks discusses issues pertaining to each of these networks and proposes novel and innovative algorithms on Scheduling, Routing and Data aggregation that are viable solutions for multihop mobile networks.

Download or read book Ad Hoc Wireless Networks written by C. Siva Ram Murthy and published by Pearson Education. This book was released on 2004-05-24 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical design and performance solutions for every ad hoc wireless network Ad Hoc Wireless Networks comprise mobile devices that use wireless transmission for communication. They can be set up anywhere and any time because they eliminate the complexities of infrastructure setup and central administration-and they have enormous commercial and military potential. Now, there's a book that addresses every major issue related to their design and performance. Ad Hoc Wireless Networks: Architectures and Protocols presents state-of-the-art techniques and solutions, and supports them with easy-to-understand examples. The book starts off with the fundamentals of wireless networking (wireless PANs, LANs, MANs, WANs, and wireless Internet) and goes on to address such current topics as Wi-Fi networks, optical wireless networks, and hybrid wireless architectures. Coverage includes: Medium access control, routing, multicasting, and transport protocols QoS provisioning, energy management, security, multihop pricing, and much more In-depth discussion of wireless sensor networks and ultra wideband technology More than 200 examples and end-of-chapter problems Ad Hoc Wireless Networks is an invaluable resource for every network engineer, technical manager, and researcher designing or building ad hoc wireless networks.

Download or read book Encyclopedia on Ad Hoc and Ubiquitous Computing written by Dharma P. Agrawal and published by World Scientific. This book was released on 2010 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ad hoc and ubiquitous computing technologies have received extensive attention in both the academia and industry with the explosive growth of wireless communication devices. These technologies are beneficial for many applications, such as offering futuristic high bandwidth access for users, and are expected to offer more exciting and efficient services, anytime and anywhere. In order to satisfy these diverse applications, the design issues of various wireless networks such as ad hoc, sensor, and mesh networks are extremely complicated and there are a number of technique challenges that need to be explored, involving every layer of the OSI protocol stack. This book aims to provide a complete understanding of these networks by investigating the evolution of ad hoc, sensor, and mesh networking technologies from theoretic concept to implementation protocols, from fundamentals to real applications. It provides the necessary background material needed to go deeper into the subject and explore the research literature. The explanation in the book is therefore sufficiently detailed to serve as a comprehensive reference for students, instructors, researchers, engineers, and other professionals, building their understanding of these networks. Sample Chapter(s). Chapter 1: Survey on Link Quality Models in Wireless Ad Hoc Networks (235 KB). Contents: Mobile Ad Hoc Networks: Survey on Link Quality Models in Wireless Ad Hoc Networks (M Lu & J Wu); Scalable Multicast Routing in Mobile Ad Hoc Networks (R Menchaca-Mendez & J J Garcia-Luna-Aceves); TCP, Congestion, and Admission Control Protocols in Ad Hoc Networks (A Mishra et al.); Wireless Ad Hoc Networks with Directional Antennas (B Alawieh et al.); Peer-to-Peer and Content Sharing in Vehicular Ad Hoc Networks (M Abuelela & S Olariu); Properties of the Vehicle-to-Vehicle Channel for Dedicated Short Range Communications (L Cheng et al.); Radio Resource Management in Cellular Relay Networks (K-D Lee & V C M Leung); Game Theoretic Tools Applied to Wireless Networks (H Liu et al.); Wireless Sensor Networks: Wireless Sensor Networks OCo Routing Protocols (A Jamalipour & M A Azim); Handling QoS Traffic in Wireless Sensor Networks (M Younis et al.); Mobility in Wireless Sensor Networks (A Asok et al.); Delay-Tolerant Mobile Sensor Networks (Y Wang & H Wu); Integration of RFID and Wireless Sensor Networks (H Liu et al.); Integrating Sensor Networks with the Semantic Web (Y Pei & B Wang); Effective Multiuser Broadcast Authentication in Wireless Sensor Networks (K Ren et al.); Security Attacks and Challenges in Wireless Sensor Networks (A-S K Pathan & C S Hong); Information Security in Wireless Sensor Networks (A Ouadjaout et al.); Wireless Mesh Networks: Network Architecture and Flow Control in Multi-Hop Wireless Mesh Networks (D Nandiraju et al.); Multi-Hop MAC: IEEE 802.11s Wireless Mesh Networks (R C Carrano et al.); Channel Assignment in Wireless Mesh Networks (W Fu et al.); Multi-Hop, Multi-Path and Load Balanced Routing in Wireless Mesh Networks (S Mishra & N Shenoy); Mobility Management in Wireless Mesh Networks (P Wu et al.); Selfishness and Security Schemes for Wireless Mesh Network (L Santhanam et al.). Readership: Advanced undergraduates and graduate students in computer engineering; instructors; researchers; engineers and other professionals."

Download or read book Resource Management in Wireless Networking written by Mihaela Cardei and published by Springer Science & Business Media. This book was released on 2006-07-06 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the pattern of the Internet growth in popularity, started in the early 1990s, the current unprecedented expansion of wireless technology promises to have an even greater effect on how people communicate and interact, with considerable socio-economic impact all over the world. The driving force behind this growth is the remarkable progress in component miniaturization, integration, and also devel- ments in waveforms, coding, and communication protocols. Besides established infrastructurebased wireless networks (cellular, WLAN, sat- lite) ad-hoc wireless networks emerge as a new platform for distributed applications and for personal communication in scenarios where deploying infrastructure is not feasible. In ad-hoc wireless networks, each node is capable of forwarding packets on behalf of other nodes, so that multi-hop paths provide end-to-end connectivity. The increased flexibility and mobility of ad-hoc wireless networks are favored for appli- tions in law enforcement, homeland defense and military. In a world where wireless networks become increasingly interoperable with each other and with the high-speed wired Internet, personal communication systems will transform into universal terminals with instant access to variate content and able of handle demanding tasks, such as multimedia and real-time video. With users roaming between networks, and with wide variation in wireless link quality even in a single domain, the communications terminal must continue to provide a level of Quality of Service that is acceptable to the user and conforms to a contracted Service Level Agreement.

Download or read book Routing for Wireless Multi Hop Networks written by Sherin Abdel Hamid and published by Springer Science & Business Media. This book was released on 2013-01-18 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this brief is to identify what unifies and what distinguishes the routing functions in four wireless multi-hop network paradigms. The brief introduces a generic routing model that can be used as a foundation of wireless multi-hop routing protocol analysis and design. It demonstrates that such model can be adopted by any wireless multi-hop routing protocol. Also presented is a glimpse of the ideal wireless multi-hop routing protocol along with several open issues.

Download or read book WiFi WiMAX and LTE Multi hop Mesh Networks written by Hung-Yu Wei and published by John Wiley & Sons. This book was released on 2013-03-05 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wifi, WiMAX, and Cellular Multihop Networks presents an overview of WiFi-based and WiMAX-based multihop relay networks. As the first text to cover IEEE 802.16j multihop hop relay technology, this revolutionary resource explores the latest advances in multi-hop and ad-hoc networking. Not only does this reference provide the technological aspects, but also the applications for the emerging technology and architectural issues. Ranging from introductory material to advanced topics, this guidebook is essential for engineers, researchers, and students interested in learning more about WiFi and WiMAX multihop relay networks.

Download or read book Multi hop Ad Hoc Networks from Theory to Reality written by Marco Conti and published by Nova Publishers. This book was released on 2007 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile Multi-hop Ad Hoc Networks are collections of mobile nodes connected together over a wireless medium. These nodes can freely and dynamically self-organise into arbitrary and temporary, "ad-hoc" network topologies, allowing people and devices to seamlessly internetwork in areas with no pre-existing communication infrastructure, (e.g., disaster recovery environments). The aim of this book is to present some of the most relevant results achieved by applying an experimental approach to the research on multi-hop ad hoc networks. The unique aspect of the book is to present measurements, experiences and lessons obtained by implementing ad hoc networks prototypes.

Download or read book Security for Multi hop Wireless Networks written by Mohamed M. E. A. Mahmoud and published by Springer Science & Business Media. This book was released on 2014-02-20 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Springer Brief discusses efficient security protocols and schemes for multi-hop wireless networks. It presents an overview of security requirements for these networks, explores challenges in securing networks and presents system models. The authors introduce mechanisms to reduce the overhead and identify malicious nodes that drop packets intentionally. Also included is a new, efficient cooperation incentive scheme to stimulate the selfish nodes to relay information packets and enforce fairness. Many examples are provided, along with predictions for future directions of the field. Security for Multi-hop Wireless Networks demonstrates recent research that enhances the efficiency and safety of these key networks. Concise and practical, it is a useful tool for researchers and professionals working in network security. It is also a valuable resource for advanced-level students interested in wireless communications and networking.

Download or read book Handbook of Mobile Systems Applications and Services written by Anup Kumar and published by CRC Press. This book was released on 2016-04-19 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: From fundamental concepts and theories to implementation protocols and cutting-edge applications, the Handbook of Mobile Systems Applications and Services supplies a complete examination of the evolution of mobile services technologies. It examines service-oriented architecture (SOA) and explains why SOA and service oriented computing (SOC) will pl

Download or read book Prediction and Recognition of Piracy Efforts Using Collaborative Human centric Information Systems written by Éloi Bossé and published by IOS Press. This book was released on 2013 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maritime piracy is the cause of widespread international concern, and the number of pirate attacks has increased substantially in recent years. Many commercial vessels are inherently vulnerable to attack because of their size and relative slowness, and technological improvements have resulted in smaller crews on large vessels, whilst the absence of enforcement agencies in international waters has served only to make pirates more daring. Collaborative human-centric information support systems can significantly improve the ability of every nation to predict and prevent pirate attacks, or to recognize the nature and size of an attack rapidly when prevention fails, and improve the collective response to an emergency. This book presents the papers delivered at the NATO Advanced Study Institute (ASI) Prediction and Recognition of Piracy Efforts Using Collaborative Human-Centric Information Systems, held in Salamanca, Spain, in September 2011. A significant observation from previous NATO Advanced Study Institutes and Workshops was that domain experts responsible for maritime security were not fully aware of the wide variety of technological solutions available to enhance their support systems, and that although technology experts have a general understanding of the requirements in security systems, they often lacked knowledge concerning the operational constraints affecting those who implement security procedures. This ASI involved both technology and domain experts, as well as students from related fields of study. It offered an opportunity for them to discuss the issues surrounding the prediction, recognition and deterrence of maritime piracy, and will be of interest to all those whose work is related to this internationally important issue.