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Author: Asimakis E. Tzamaloukas Publisher: ISBN: Category : Computer network protocols Languages : en Pages : 314
Book Description
This thesis focuses on the medium access control (MAC) layer. Many MAC protocols for wireless networks proposed or implemented to date are based on collision-avoidance handshakes between sender and receiver. The key objective of collision-avoidance handshakes is reducing or eliminating the collision of data packets from a source at any given receiver due to interference from packets from other sources. In the vast majority of these protocols, including the IEEE 802.11 standard, the handshake is sender-initiated, in that the sender asks the receiver for permission to transmit using a short control packet, and transmits only after the receiver sends a short clear-to-send notification. There are two main objectives in this work: analyze the effect of reversing the collision-avoidance handshake as a way to improve the performance of MAC protocols under any conditions in the network, and design MAC protocols that provide correct floor acquisition without carrier sensing or code pre-assignment. We show that receiver-initiated collision-avoidance MAC protocols not only outperform any sender-initiated ones, but also guarantee collision-free data transmission and seamless support for mobility by using simple, low-cost wireless radios. We study the effect of persistent carrier sensing in receiver- as well as sender-initiated MAC protocols. We extend our work to multi-channel radios and introduce novel collision-avoidance MAC protocols that eliminate the need for carrier sensing and code pre-assignment, and improve the utilization of the medium in the presence of unicast, multicast and broadcast traffic.
Author: Asimakis E. Tzamaloukas Publisher: ISBN: Category : Computer network protocols Languages : en Pages : 314
Book Description
This thesis focuses on the medium access control (MAC) layer. Many MAC protocols for wireless networks proposed or implemented to date are based on collision-avoidance handshakes between sender and receiver. The key objective of collision-avoidance handshakes is reducing or eliminating the collision of data packets from a source at any given receiver due to interference from packets from other sources. In the vast majority of these protocols, including the IEEE 802.11 standard, the handshake is sender-initiated, in that the sender asks the receiver for permission to transmit using a short control packet, and transmits only after the receiver sends a short clear-to-send notification. There are two main objectives in this work: analyze the effect of reversing the collision-avoidance handshake as a way to improve the performance of MAC protocols under any conditions in the network, and design MAC protocols that provide correct floor acquisition without carrier sensing or code pre-assignment. We show that receiver-initiated collision-avoidance MAC protocols not only outperform any sender-initiated ones, but also guarantee collision-free data transmission and seamless support for mobility by using simple, low-cost wireless radios. We study the effect of persistent carrier sensing in receiver- as well as sender-initiated MAC protocols. We extend our work to multi-channel radios and introduce novel collision-avoidance MAC protocols that eliminate the need for carrier sensing and code pre-assignment, and improve the utilization of the medium in the presence of unicast, multicast and broadcast traffic.
Author: Yan Zhang Publisher: CRC Press ISBN: 1420055380 Category : Computers Languages : en Pages : 422
Book Description
The goal of Unlicensed Mobile Access (UMA) is to provide seamless access to GSM and GPRS mobile service networks via unlicensed spectrum technologies, including Bluetooth, WiMAX, and Wi-Fi. Expanding on the level of knowledge in this growing field, Unlicensed Mobile Access Technology: Protocols, Architectures, Security, Standards, and Applications
Author: Mohammad Ilyas Publisher: CRC Press ISBN: 020349251X Category : Computers Languages : en Pages : 666
Book Description
Consisting of 25 articles contributed by expert authors from around the world, this handbook begins with a detailed introduction that provides an overview of LAN technologies, performance, security, and security protocols. It then delves further into WLAN technology, covering space-time processing, WLAN and cellular convergence, and a peer-to-peer approach to roaming, along with other topics. The Handbook continues by exploring WLAN applications, followed by an extensive discussion of security that includes the steps that can be taken to minimize WLAN security risks. This text concludes with an analysis of standards, describing 3G UMTS - IEEE 802.11b internetworking and security.
Author: Raja Jurdak Publisher: Springer Science & Business Media ISBN: 0387390235 Category : Technology & Engineering Languages : en Pages : 270
Book Description
This book explores the optimization potential of cross-layer design approaches for wireless ad hoc and sensor network performance, covering both theory and practice. A theoretical section provides an overview of design issues in both strictly layered and cross-layer approaches. A practical section builds on these issues to explore three case studies of diverse ad hoc and sensor network applications and communication technologies.
Author: Jie Wu Publisher: CRC Press ISBN: 0203323688 Category : Computers Languages : en Pages : 893
Book Description
The availability of cheaper, faster, and more reliable electronic components has stimulated important advances in computing and communication technologies. Theoretical and algorithmic approaches that address key issues in sensor networks, ad hoc wireless networks, and peer-to-peer networks play a central role in the development of emerging network
Author: C. Siva Ram Murthy Publisher: Pearson Education ISBN: 0132465698 Category : Computers Languages : en Pages : 1050
Book Description
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.
Author: Chai K Toh Publisher: Pearson Education ISBN: 0132442043 Category : Technology & Engineering Languages : en Pages : 502
Book Description
The authoritative guide to the state of the art in ad hoc wireless networking. Reflects the field's latest breakthroughs Covers media access, routing, service discovery, multicasting, power conservation, transport protocol, and much more Includes a complete narration of prototype implementation with communication performance results from practical field trials Introduces key applications for home, business, auto, and defense "Ad hoc" wireless networks eliminate the complexities of infrastructure setup and administration, enabling devices to create and join networks "on the fly"-anywhere, anytime, for virtually any application. The field is rapidly coming of age, reflecting powerful advances in protocols, systems, and real-world implementation experience. In Ad Hoc Mobile Wireless Networks, one of the field's leading researchers brings together these advances in a single consolidated and comprehensive archive. C.K. Toh covers all this, and more: Key challenges: device heterogeneity, diverse traffic profiles, mobility, and power conservation Routing protocols for ad hoc networks, including Associativity Based Routing (ABR) and other IETF MANET protocols Real-world implementation issues-including a complete prototype implementation Ad hoc wireless network performance: results obtained from the latest field trials Leading approaches to service discovery Addressing TCP over an ad hoc wireless network environment Support for multicast communications The role of Bluetooth and WAP Ad Hoc Mobile Wireless Networks introduces detailed application scenarios ranging from home and car to office and battlefield. C.K. Toh also introduces several of the field's leading projects, from Motorola's PIANO platform to UC Berkeley's "Smart Dust." Whether you're a researcher, scientist, implementer, consultant, technical manager, CTO, or student, you won't find a more authoritative and comprehensive guide to the new state of the art in ad hoc networking.
Author: Azzedine Boukerche Publisher: CRC Press ISBN: 1420035096 Category : Computers Languages : en Pages : 1042
Book Description
The Handbook of Algorithms for Wireless Networking and Mobile Computing focuses on several aspects of mobile computing, particularly algorithmic methods and distributed computing with mobile communications capability. It provides the topics that are crucial for building the foundation for the design and construction of future generations of mobile and wireless networks, including cellular, wireless ad hoc, sensor, and ubiquitous networks. Following an analysis of fundamental algorithms and protocols, the book offers a basic overview of wireless technologies and networks. Other topics include issues related to mobility, aspects of QoS provisioning in wireless networks, future applications, and much more.
Book Description
This textbook, now in its Second Edition, addresses the rapid advancements to the area of mobile computing. Almost every chapter has been revised to make the book up to date with the latest developments. It covers the main topics associated with mobile computing and wireless networking at a level that enables the students to develop a fundamental understanding of the technical issues involved in this new and fast emerging discipline. This book first examines the basics of wireless technologies and computer communications that form the essential infrastructure required for building knowledge in the area of mobile computations involving the study of invocation mechanisms at the client end, the underlying wireless communication, and the corresponding server-side technologies. It includes coverage of development of mobile cellular systems, protocol design for mobile networks, special issues involved in the mobility management of cellular system users, realization and applications of mobile ad hoc networks (MANETs), design and operation of sensor networks, special constraints and requirements of mobile operating systems, and development of mobile computing applications. Finally, an example application of the mobile computing infrastructure to M-commerce is described in the concluding chapter of the book. The book is suitable for a one-semester course in mobile computing for the undergraduate students of Computer Science and Engineering, Information Technology, Electronics and Communication Engineering, Master of Computer Applications (MCA), and the undergraduate and postgraduate science courses in computer science and Information Technology. Key Features • Provides unified coverage of mobile computing and communication aspects • Discusses the mobile application development, mobile operating systems and mobile databases as part of the material devoted to mobile computing • Incorporates a survey of mobile operating systems and the latest developments
Author: Subir Kumar Sarkar Publisher: CRC Press ISBN: 1420062220 Category : Computers Languages : en Pages : 334
Book Description
Ad hoc mobile wireless networks have seen increased adaptation in a variety of disciplines because they can be deployed with simple infrastructures and virtually no central administration. In particular, the development of ad hoc wireless and sensor networks provides tremendous opportunities in areas including disaster recovery, defense, health car
Author: Asimakis E. Tzamaloukas
Author: Asimakis E. Tzamaloukas
Author: Yan Zhang
Author: Mohammad Ilyas
Author: Raja Jurdak
Author: Jie Wu
Author: C. Siva Ram Murthy
Author: Chai K Toh
Author: Azzedine Boukerche
Author: PATTNAIK, PRASANT KUMAR
Author: Subir Kumar Sarkar