Reduction Of Shadowing Effects In Dense Urban Wireless Modelling

Author : Sabyasachi Chatterjee,Siladitya Sen
Publisher : LAP Lambert Academic Publishing
Page : 68 pages
File Size : 43,5 Mb
Release : 2013-01
Category : Electronic
ISBN : 3659311073

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Reduction of Shadowing Effects in Dense Urban Wireless Modelling by Sabyasachi Chatterjee,Siladitya Sen Pdf

Wireless communication is the fastest growing segment of the communication industry. Explosive growth of wireless systems coupled with the features of laptop and palmtop computers indicate a bright future for wireless networks of stand-alone systems or larger networking infrastructure. However, many technical challenges remain in designing robust wireless networks that deliver the performance at assured level. In any urban or metropolitan scenario implementations of wireless network propagation models are necessary to determine the characteristic of propagation using a medium. In this book cost231 Walfisch and Ikegami empirical propagation model has been investigated theoretically and a new correction factor has been introduced to improve the path loss factor. Here QualNet 5.0 is used to simulate a given scenario with respect to cost231 WI model and new proposed corrected model is analyzed. With the theoretical and experimental analysis it has been concluded that the limitation of cost231 WI propagation model for shadowing effects of wireless network design in dense urban scenarios, can be minimized with this correction factor.

Author : Bin Duo,Xiaojun Yuan,Yifan Liu
Publisher : Springer Nature
Page : 130 pages
File Size : 50,5 Mb
Release : 2023-11-20
Category : Computers
ISBN : 9783031456053

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Securing Unmanned Aerial Vehicle Networks by Bin Duo,Xiaojun Yuan,Yifan Liu Pdf

This book focuses on the model and algorithm aspects of securing Unmanned Aerial Vehicle Networks (UAV). To equip readers with the essential knowledge required for conducting research in this field, it covers the foundational concepts of this topic as well. This book also offers a detailed insight into UAV networks from the physical layer security point of view. The authors discuss the appropriate channel models for characterizing various propagation environments that UAV networks are exposed. The state-of-the-art technologies, such as UAV trajectory design, cooperative jamming and reconfigurable intelligent surfaces are covered. The corresponding algorithms for significantly improving the security of UAV networks, along with practical case studies on topics such as energy-efficient and secure UAV networks, elevation angle-distance trade-off for securing UAV networks and securing UAV networks with the aid of reconfigurable intelligent surfaces are presented as well. Last, this book outlines the future challenges and research directions to facilitate further studies on secure UAV networks. This book is suitable reading for graduate students and researchers who are interested in the research areas of UAV networking and communications, IoT security, and physical layer security in wireless networks. Professionals working within these related fields will also benefit from this book.

Author : Kerry James Hinton,Robert Ayre,Jeffrey Cheong
Publisher : CRC Press
Page : 407 pages
File Size : 54,5 Mb
Release : 2021-10-29
Category : Computers
ISBN : 9781000464566

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Modeling the Power Consumption and Energy Efficiency of Telecommunications Networks by Kerry James Hinton,Robert Ayre,Jeffrey Cheong Pdf

This book introduces the technical foundations and tools for estimating the power consumption of internet networks and services, including a detailed description of how these models are constructed and applied. Modeling the Power Consumption and Energy Efficiency of Telecommunications Networks can be used to gain insight into the construction of mathematical models that provide realistic estimates of the power consumption of internet networks and services. This knowledge enables forecasting the energy footprint of future networks and services to integrate sustainability and environmental considerations into network planning and design. FEATURES Provides the motivation for developing mathematical models for telecommunications network and service power consumption and energy efficiency modeling Presents factors impacting overall network and service power consumption Discusses the types of network equipment and their power consumption profiles Reviews the basics of power modeling, including network segmentation, traffic forecasting, top-down and bottom-up models, wired and wireless networks, data centers and servers Explores the application of energy efficiency metrics for equipment, networks, and services This book is aimed at students and technologists as well as technology managers and policy makers. This book will be of value to any organization that wishes to estimate the energy footprint of the use of information and communications technologies. This book can also be integrated into a course on the sustainability of information and communications technologies.

Author : Alejandro Aragón-Zavala,José Luis Cuevas-Ruíz,José Antonio Delgado-Penín
Publisher : John Wiley & Sons
Page : 261 pages
File Size : 44,8 Mb
Release : 2008-11-24
Category : Technology & Engineering
ISBN : 9780470510612

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High-Altitude Platforms for Wireless Communications by Alejandro Aragón-Zavala,José Luis Cuevas-Ruíz,José Antonio Delgado-Penín Pdf

Provides an introduction to High-Altitude Platform Stations (HAPS) technology and its applications for wireless communications High-altitude platform stations offer a promising new technology that combines the benefits of terrestrial and satellite communication systems for delivering broadband communications to users at a low cost. They are easily deployable and easy to maintain, which is why they offer a good alternative for network operators who need to find ways to get more coverage to satisfy the increasing demand for more capacity. HAPS are usually balloons, airships or unmanned aerial systems (UAS) located in the stratosphere. An enormous interest has grown worldwide to examine their use not only for broadband communications, but also for emergency services, navigation, traffic monitoring, cellular, etc. Key features include: Unique book focusing on emerging HAPS technology and its applications Provides a thorough overview of the technology including HAPS-based communications systems, antennas for HAPS, radio propagation and channel modelling issues and HAPS networking aspects Presents various HAPS-related projects and initiatives developed throughout the world (North America, Europe and Asia-Pacific) Features a comprehensive overview on both aeronautical and telecommunications regulatory aspects, which will affect the deployment and future developments in the field of HAPS High-Altitude Platform Systems for Wireless Communications will prove essential reading for postgraduate students in the field of HAPS, engineers, developers and designers involved in the design and maintenance of HAPS, aerospace engineers, and communications system planners and researchers.

Author : IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications
Publisher : Unknown
Page : 306 pages
File Size : 51,6 Mb
Release : 2000
Category : Mobile communication systems
ISBN : UOM:39015036237470

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The ... IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications by IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications Pdf

Author : Harry R. Anderson
Publisher : John Wiley & Sons
Page : 528 pages
File Size : 40,7 Mb
Release : 2003-07-25
Category : Technology & Engineering
ISBN : 9780470861288

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Fixed Broadband Wireless System Design by Harry R. Anderson Pdf

Fixed broadband networks can provide far higher data rates and capacity than the currently envisioned 3G and 4G mobile cellular systems. Achieving higher data rates is due to the unique technical properties of fixed systems, in particular, the use of high gain and adaptive antennas, wide frequency bands, dynamic data rate and channel resource allocation, and advanced multiple access techniques. Fixed Broadband Wireless System Design is a comprehensive presentation of the engineering principles, advanced engineering techniques, and practical design methods for planning and deploying fixed wireless systems, including: Point-to-point LOS and NLOS network design Point-to-point microwave link design including active and passive repeaters Consecutive point and mesh network planning Advanced empirical and physical propagation modeling including ray-tracing Detailed microwave fading models for multipath and rain NLOS (indoor and outdoor) propagation and fading models Propagation environment models including terrain, morphology, buildings, and atmospheric effects Novel mixed application packet traffic modeling for dimensioning network capacity Narrow beam, wide beam, and adaptive (smart) antennas MIMO systems and space-time coding Channel planning including fixed and dynamic channel assignment and dynamic packet assignment IEEE 802.11b and 802.11a (WLAN) system design Free space optic (FSO) link design At present, there are no titles available that provide such a concise presentation of the wide variety of systems, frequency bands, multiple access techniques, and other factors that distinguish fixed wireless systems from mobile wireless systems. Fixed Broadband Wireless System Design is essential reading for design, system and RF engineers involved in the design and deployment of fixed broadband wireless systems, fixed wireless equipment vendors, and academics and postgraduate students in the field.

Author : IEEE Communications Society
Publisher : Institute of Electrical & Electronics Engineers(IEEE)
Page : 306 pages
File Size : 50,8 Mb
Release : 1996
Category : Internetworking (Telecommunication)
ISBN : UCSD:31822021769443

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The Seventh IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'96 by IEEE Communications Society Pdf

The field of personal indoor and mobile radio is a fast developing field. The rapidity of development of compact miniaturized circuity and adequate power units for portability are fueling this wireless applications explosion. The awarding of spectrum licenses throughout the world has impact on design decisions that are reported here and will have long ranging effects on the future developments.

Author : Z. Ghassemlooy,W. Popoola,S. Rajbhandari
Publisher : CRC Press
Page : 569 pages
File Size : 53,5 Mb
Release : 2019-04-30
Category : Technology & Engineering
ISBN : 9781351647779

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Optical Wireless Communications by Z. Ghassemlooy,W. Popoola,S. Rajbhandari Pdf

The 2nd Edition of Optical Wireless Communications: System and Channel Modelling with MATLAB® with additional new materials, is a self-contained volume that provides a concise and comprehensive coverage of the theory and technology of optical wireless communication systems (OWC). The delivery method makes the book appropriate for students studying at undergraduate and graduate levels as well as researchers and professional engineers working in the field of OWC. The book gives a detailed description of OWC, focusing mainly on the infrared and visible bands, for indoor and outdoor applications. A major attraction of the book is the inclusion of Matlab codes and simulations results as well as experimental test-beds for free space optics and visible light communication systems. This valuable resource will aid the readers in understanding the concept, carrying out extensive analysis, simulations, implementation and evaluation of OWC links. This 2nd edition is structured into nine compact chapters that cover the main aspects of OWC systems: History, current state of the art and challenges Fundamental principles Optical source and detector and noise sources Modulation, equalization, diversity techniques Channel models and system performance analysis Visible light communications Terrestrial free space optics communications Relay-based free space optics communications Matlab codes. A number of Matlab based simulation codes are included in this 2nd edition to assist the readers in mastering the subject and most importantly to encourage them to write their own simulation codes and enhance their knowledge.

Author : Athanasios G. Kanatas,Konstantina S. Nikita,Panagiotis (Takis) Mathiopoulos
Publisher : CRC Press
Page : 420 pages
File Size : 40,6 Mb
Release : 2017-10-16
Category : Computers
ISBN : 9781351651875

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New Directions in Wireless Communications Systems by Athanasios G. Kanatas,Konstantina S. Nikita,Panagiotis (Takis) Mathiopoulos Pdf

Beyond 2020, wireless communication systems will have to support more than 1,000 times the traffic volume of today's systems. This extremely high traffic load is a major issue faced by 5G designers and researchers. This challenge will be met by a combination of parallel techniques that will use more spectrum more flexibly, realize higher spectral efficiency, and densify cells. Novel techniques and paradigms must be developed to meet these goals. The book addresses diverse key-point issues of next-generation wireless communications systems and identifies promising solutions. The book's core is concentrated to techniques and methods belonging to what is generally called radio access network.

Author : Mohanan, Vasuky,Budiarto, Rahmat,Aldmour, Ismat
Publisher : IGI Global
Page : 304 pages
File Size : 48,5 Mb
Release : 2017-07-12
Category : Computers
ISBN : 9781522528005

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Powering the Internet of Things With 5G Networks by Mohanan, Vasuky,Budiarto, Rahmat,Aldmour, Ismat Pdf

With the rise of mobile and wireless technologies, more sustainable networks are necessary to support such communications. These next generation networks can now be utilized to strengthen the growing era of the Internet of Things. Powering the Internet of Things With 5G Networks is a comprehensive reference source for the latest scholarly research on the progression and design of fifth generation networks and their role in supporting the Internet of Things. Including a range of perspectives on topics such as privacy and security, large scale monitoring, and scalable architectures, this book is ideally designed for technology developers, academics, researchers, and practitioners interested in the convergence of the Internet of Things and 5G networks.

Author : Simone Frattasi,Francescantonio Della Rosa
Publisher : John Wiley & Sons
Page : 628 pages
File Size : 53,9 Mb
Release : 2017-07-21
Category : Technology & Engineering
ISBN : 9781119068853

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Mobile Positioning and Tracking by Simone Frattasi,Francescantonio Della Rosa Pdf

The essential guide to state-of-the art mobile positioning and tracking techniques—fully updated for new and emerging trends in the field Mobile Positioning and Tracking, Second Edition explores state-of-the-art mobile positioning solutions applied on top of current wireless communication networks. Application areas covered include positioning, data fusion and filtering, tracking, error mitigation, both conventional and cooperative positioning technologies and systems, and more. The authors fill the gap between positioning and communication systems, showing how features of wireless communications systems can be used for positioning purposes and how the retrieved location information can be used to enhance the performance of wireless networks. Unlike other books on the subject, Mobile Positioning and Tracking: From Conventional to Cooperative Techniques, 2nd Edition covers the entire positioning and tracking value chain, starting from the measurement of positioning signals, and offering valuable insights into the theoretical fundamentals behind these methods and how they relate to application areas such as location-based services, as well as related disciplines and professional concerns, including global business considerations and the changing laws and standards governing wireless communication networks. Fully updated and revised for the latest developments in the field, this Second Edition: Features new chapters on UWB positioning and tracking, indoor positioning in WLAN, and multi-tag positioning in RFID Explores an array of positioning and tracking systems based on satellite and terrestrial systems technologies and methods Introduces advanced and novel topics such as localisation in heterogeneous and cooperative scenarios Provides a bridge between research and industry with potential implementations of the solutions presented Mobile positioning and tracking is subject to continuous innovations and improvements. This important working resource helps busy industry professionals and practitioners—including software and service developers—stay on top of emerging trends in the field. It is also a valuable reference for advanced students in related disciplines studying positioning and mobile technologies.

Author : Rose Qingyang Hu,Yi Qian
Publisher : John Wiley & Sons
Page : 384 pages
File Size : 46,5 Mb
Release : 2013-04-03
Category : Technology & Engineering
ISBN : 9781118555316

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Heterogeneous Cellular Networks by Rose Qingyang Hu,Yi Qian Pdf

A timely publication providing coverage of radio resourcemanagement, mobility management and standardization inheterogeneous cellular networks The topic of heterogeneous cellular networks has gained momentumin industry and the research community, attracting the attention ofstandardization bodies such as 3GPP LTE and IEEE 802.16j, whoseobjectives are looking into increasing the capacity and coverage ofthe cellular networks. This book focuses on recentprogresses, covering the related topics including scenariosof heterogeneous network deployment, interference management in theheterogeneous network deployment, carrier aggregation in aheterogeneous network, cognitive radio, cell selection/reselectionand load balancing, mobility and handover management, capacity andcoverage optimization for heterogeneous networks, trafficmanagement and congestion control. This book enables readers to better understand the technicaldetails and performance gains that are madepossible by this state-of-the-art technology. It contains theinformation necessary for researchers and engineers wishing tobuild and deploy highly efficient wireless networks themselves. Toenhance this practical understanding, the book is structured tosystematically lead the reader through a series of case-studies ofreal world scenarios. Key features: Presents this new paradigm in cellular network domain: aheterogeneous network containing network nodes with differentcharacteristics such as transmission power and RF coveragearea Provides a clear approach by containing tables, illustrations,industry case studies, tutorials and examples to cover the relatedtopics Includes new research results and state-of-the-arttechnological developments and implementation issues

Author : Hui-Ming Wang,Tong-Xing Zheng
Publisher : Springer
Page : 113 pages
File Size : 46,8 Mb
Release : 2016-10-04
Category : Computers
ISBN : 9789811015755

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Physical Layer Security in Random Cellular Networks by Hui-Ming Wang,Tong-Xing Zheng Pdf

This book investigates key security issues in connection with the physical layer for random wireless cellular networks. It first introduces readers to the fundamentals of information theoretic security in the physical layer. By examining recently introduced security techniques for wireless point-to-point communications, the book proposes new solutions to physical layer security based on stochastic geometric frameworks for random cellular networks. It subsequently elaborates on physical-layer security in multi-tier heterogeneous networks. With the new modeled settings, the authors also verify the security performance with the impact of the full-duplex transceivers. The specific model design presented here offers a valuable point of reference for readers in related areas. In addition, the book highlights promising topics and proposes potential future research directions.

Author : Chowdhry, Bhawani Shankar,Shaikh, Faisal Karim,Mahoto, Naeem Ahmed
Publisher : IGI Global
Page : 291 pages
File Size : 54,8 Mb
Release : 2019-12-27
Category : Computers
ISBN : 9781799812555

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IoT Architectures, Models, and Platforms for Smart City Applications by Chowdhry, Bhawani Shankar,Shaikh, Faisal Karim,Mahoto, Naeem Ahmed Pdf

Developing countries are persistently looking for efficient and cost-effective methods for transforming their communities into smart cities. Unfortunately, energy crises have increased in these regions due to a lack of awareness and proper utilization of technological methods. These communities must explore and implement innovative solutions in order to enhance citizen enrollment, quality of government, and city intelligence. IoT Architectures, Models, and Platforms for Smart City Applications provides emerging research exploring the theoretical and practical aspects of transforming cities into intelligent systems using IoT-based design models and sustainable development projects. This publication looks at how cities can be built as smart cities within limited resources and existing advanced technologies. Featuring coverage on a broad range of topics such as cloud computing, human machine interface, and ad hoc networks, this book is ideally designed for urban planners, engineers, IT specialists, computer engineering students, research scientists, academicians, technology developers, policymakers, researchers, and designers seeking current research on smart applications within urban development.

Author : United States. Federal Communications Commission
Publisher : Unknown
Page : 1012 pages
File Size : 44,6 Mb
Release : 2012
Category : Telecommunication
ISBN : MINN:30000010455859

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FCC Record by United States. Federal Communications Commission Pdf