Download or read book Joint Optimization of Physical and Application Layers for Wireless Multimedia Communications written by Seok-Ho Chang and published by . This book was released on 2010 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the challenges in the next generation wireless communication systems is to provide high quality multimedia services. To address this issue, the approach we take in this dissertation is cross-layer design of communication systems. In the first part of the dissertation, we address transmission of progressive images or scalable video using hierarchical modulation. Thanks to the progressive features, progressive bitstreams enable each user in a multi-user network to decode the source at the rate that their channel allows. These progressive sources have the feature that they have gradual differences of importance in the bitstreams. One would like to have gradual differences in unequal error protection (UEP) to correspond to the gradual differences in importance. However, hierarchical modulation, which is often used for UEP and is currently employed in the Digital Video Broadcasting (DVB) standard, provides only a limited number of UEP levels. By multiplexing hierarchical modulation, we propose a high performance multilevel UEP system for the transmission of progressive sources. In the second part, we consider the transmission of a layered source in a multiple-input multiple-output (MIMO) system for broadcast scenarios. We first analyze the tradeoff between two different MIMO approaches, Alamouti coding and spatial multiplexing, having the same transmission rate. For analytical tractability, we consider high SNR approximate (minimum distance) bit error rates (BER) for both MIMO approaches. Based on this, we propose superposition MIMO coding, where two different MIMO approaches are hierarchically combined such that low-rate high priority components of the source are Alamouti coded, high-rate low priority components are spatially multiplexed, and the two different components are superposed. It is demonstrated that in broadcast scenarios, the proposed MIMO coding maximizes the performance of a layered source which has different data rates for its components. In the third part of the dissertation, we analyze the performance of n-channel symmetric FEC-based multiple description coding for a progressive mode of transmission. Multiple description source coding has recently emerged as an attractive framework for robust multimedia transmission over packet erasure channels. In the analysis, we consider transmission over orthogonal frequency division multiplexing (OFDM) networks in a frequency-selective, slowly-varying, Rayleigh faded environment.
Download or read book Wireless Multimedia Communications written by K.R. Rao and published by CRC Press. This book was released on 2018-10-03 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid evolution of multimedia communications, engineers and other professionals are generally forced to hoard a plethora of different texts and journals to maintain a solid grasp on essential ideas and techniques in the field. Wireless Multimedia Communications provides researchers and students with a primary reference to help readers take maximum advantage of current systems and uncover opportunities to propose new and novel protocols, applications, and services. Extract the Essentials of System Design, Analysis, Implementation A complete technical reference, the text condenses the essential topics of core wireless multimedia communication technologies, convergence, QoS, and security that apply to everything from networking to communications systems, signal processing, and security. From extensive existing literature, the authors distill the central tenets and primary methods of analysis, design, and implementation, to reflect the latest technologies and architectural concepts. The book addresses emerging challenges to inform the system standardization process and help engineers combat the high error rates and stringent delay constraints that remain a significant challenge to various applications and services. Keep Pace with Detailed Techniques to Optimize Technology The authors identify causes of information loss in point-to-point signal transmission through wireless channels, and then they discuss techniques to minimize that loss. They use examples that illustrate the differences in implementing various systems, ranging from cellular voice telephony to wireless Internet access. Each chapter has been carefully organized with the latest information to serve dual purposes as an easy-to-reference guide for professionals and as a principal text for senior-level university students.
Download or read book Wireless Networks Multiuser Detection in Cross Layer Design written by Christina Comaniciu and published by Springer Science & Business Media. This book was released on 2006-06-14 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-layer design seeks to enhance the capacity of wireless networks significantly through the joint optimization of multiple layers in the network, primarily the physical (PHY) and medium access control (MAC) layers. Although there are advantages of such design in wireline networks as well, this approach is particularly advantageous for wireless networks due to the properties (such as mobility and interference) that strongly affect performance and design of higher layer protocols. This unique monograph is concerned with the issue of cross-layer design in wireless networks, and more particularly with the impact of node-level multiuser detection on such design. It provides an introduction to this vibrant and active research area insufficiently covered in existing literature, presenting some of the principal methods developed and results obtained to date. Accompanied by numerous illustrations, the text is an excellent reference for engineers, researchers and students working in communication networks.
Download or read book Cooperative Wireless Communications written by Yan Zhang and published by CRC Press. This book was released on 2009-03-10 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cooperative devices and mechanisms are increasingly important to enhance the performance of wireless communications and networks, with their ability to decrease power consumption and packet loss rate and increase system capacity, computation, and network resilience. Considering the wide range of applications, strategies, and benefits associated wit
Download or read book Technology Trends in Wireless Communications written by Ramjee Prasad and published by Artech House. This book was released on 2003 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether gaming, constant communications and connectivity, or streaming video and audio is the future killer app that keeps consumers reaching for mobile devices, you can turn to this book for the hands-on technology details you need to know to prepare yourself and your organizations for tomorrowOCOs world of wireless multimedia. The books includes in-depth discussions on the hottest topics in this area, including AAA, multiple access protocols, IPv6 and adaptive technologies. Such resource management strategies as power control, user admission techniques, and congestion control are fully explained, helping you design wireless multimedia systems that provide the required degree of quality of service by effectively utilizing limited radio resources."
Download or read book System Level Power Optimization for Wireless Multimedia Communication written by Ramesh Karri and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on emerging issues in power-aware portable multimedia communications devices beyond low-power electronic design. It compiles system-level power management approaches, from theoretical and simulation studies to experimental test beds related to low power computing, mobile communication and networking.
Download or read book Fourth Generation Wireless Networks Applications and Innovations written by Adibi, Sasan and published by IGI Global. This book was released on 2009-12-31 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourth-Generation Wireless Networks: Applications and Innovations presents a comprehensive collection of recent findings in access technologies useful in the architecture of wireless networks.
Download or read book Channel Adaptive Technologies and Cross Layer Designs for Wireless Systems with Multiple Antennas written by Vincent K.N. Lau and published by John Wiley & Sons. This book was released on 2006-02-10 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative book sets forth two promising wireless approachesthat support high-quality, high-speed data and multimediaservice-multiple antenna technologies and cross layer transmitteradaptation designs-while highlighting the relationships andinteractions between them. The latest advanced technologies ofchannel adaptation techniques for wireless communication systemswith multiple antennas are thoroughly investigated. The book is divided into three parts, first giving readers a goodfoundation in underlying theory, then exploring applications aswell as advanced topics: * Part 1 examines theoretical aspects of channel adaptation inwireless communications for point-to-point and multi-user systemswith multiple antennas * Part 2 focuses on the applications of the channel-adaptivetechnologies in practical systems such as UMTS * Part 3 delves into topics such as multi-user scheduling forwideband systems, combined queuing theory and information theory,and ad hoc routing Using a hands-on, practical approach, Channel Adaptive Technologiesand Cross Layer Designs for Wireless Systems with Multiple Antennasthoroughly covers detailed design considerations that help readersunderstand how to apply theory to real-world systems. Emphasisthroughout the book is on joint optimization across differentlayers of a communications system based on an integrated approach.Examples of popular wireless systems, such as TDMA, wideband CDMA(UMTS), and HSDPA, are used throughout as practical illustrations.Each chapter ends with a summary that reviews key points and a setof problems that lets readers test their knowledge and continue todevelop their skills as they progress to new topics. Figures andtables are also used extensively to help readers visualize complextheory and systems. Combining theory, design, and application into one integratedapproach, this is a superior reference for advanced communicationstheory courses.
Download or read book Joint Physical MAC Layer Optimization for Spectral and Energy Efficient Wireless Networks written by Guowang Miao and published by Springer. This book was released on 2013-11-28 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Joint Physical-MAC Layer Optimization for Spectral- and Energy-Efficient Wireless Networks provides a deep technical overview of recent advances in joint spectral- and energy-efficient designs for wireless networks. The book explores various types of wireless networks, such as 3G/4G cellular, ad-hoc wireless networks, and wireless local area networks. The authors discuss cross-layer design for joint spectrum- and energy-efficiency, as well as green network design that achieves high network performance. This book introduces state-of-the-art design and resource management technologies to improve both spectral and energy efficiencies of various wireless systems.
Download or read book Wireless Networks Multiuser Detection in Cross Layer Design written by Christina Comaniciu and published by Springer. This book was released on 2008-11-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-layer design seeks to enhance the capacity of wireless networks significantly through the joint optimization of multiple layers in the network, primarily the physical (PHY) and medium access control (MAC) layers. Although there are advantages of such design in wireline networks as well, this approach is particularly advantageous for wireless networks due to the properties (such as mobility and interference) that strongly affect performance and design of higher layer protocols. This unique monograph is concerned with the issue of cross-layer design in wireless networks, and more particularly with the impact of node-level multiuser detection on such design. It provides an introduction to this vibrant and active research area insufficiently covered in existing literature, presenting some of the principal methods developed and results obtained to date. Accompanied by numerous illustrations, the text is an excellent reference for engineers, researchers and students working in communication networks.
Download or read book Embedded Software and Systems written by Laurence T. Yang and published by Springer Science & Business Media. This book was released on 2005-12-05 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Embedded Software and Systems, ICESS 2005, held in Xi'an, China, in December 2005. The 63 revised full papers presented together with the abstracts of 3 keynote speeches were thoroughly reviewed and selected from 361 submissions. The papers are organized in topical sections on embedded hardware, embedded software, real-time systems, power aware computing, hardware/software co-design and system-on-chip, testing and verification, reconfigurable computing, agent and distributed computing, wireless communications, mobile computing, pervasive/ubiquitous computing and intelligence, multimedia and human-computer interaction, network protocol, security and fault-tolerance, and abstracts of eight selected workshop papers.
Download or read book Wireless Multimedia Communication Systems written by K.R. Rao and published by CRC Press. This book was released on 2017-07-12 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid progress in software, hardware, mobile networks, and the potential of interactive media poses many questions for researchers, manufacturers, and operators of wireless multimedia communication systems. Wireless Multimedia Communication Systems: Design, Analysis, and Implementation strives to answer those questions by not only covering the underlying concepts involved in the design, analysis, and implementation of wireless multimedia communication systems, but also by tackling advanced topics such as mobility management, security components, and smart grids. Offering an accessible treatment of the latest research, this book: Presents specific wireless multimedia communication schemes that have proven to be useful Discusses important standardization processing activities regarding wireless networking Includes wireless mesh and multimedia sensor network architectures, protocols, and design optimizations Highlights the challenges associated with meeting complex connectivity requirements Contains numerous figures, tables, examples, references, and a glossary of acronyms Providing coverage of significant technological advances in their initial steps along with a survey of the fundamental principles and practices, Wireless Multimedia Communication Systems: Design, Analysis, and Implementation aids senior-level and graduate-level engineering students and practicing professionals in understanding the processes and furthering the development of today’s wireless multimedia communication systems.
Download or read book Networked Digital Technologies Part II written by Rachid Benlamri and published by Springer. This book was released on 2012-10-01 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume-set (CCIS 293 and CCIS 294) constitutes the refereed proceedings of the International Conference on Networked Digital Technologies, NDT 2012, held in Dubai, UAE, in April 2012. The 96 papers presented in the two volumes were carefully reviewed and selected from 228 submissions. The papers are organized in topical sections on collaborative systems for e-sciences; context-aware processing and ubiquitous systems; data and network mining; grid and cloud computing; information and data management; intelligent agent-based systems; internet modeling and design; mobile, ad hoc and sensor network management; peer-to-peer social networks; quality of service for networked systems; semantic Web and ontologies; security and access control; signal processing and computer vision for networked systems; social networks; Web services.
Download or read book Green Communications written by Jinsong Wu and published by CRC Press. This book was released on 2016-04-19 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays energy crisis and global warming problems are hanging over everyone's head, urging much research work on energy saving. In the ICT industry, which is becoming a major consumer of global energy triggered by the telecommunication network operators experiencing energy cost as a significant factor in profit calculations, researchers have start
Download or read book The Newcom Vision Book written by Sergio Benedetto and published by Springer Science & Business Media. This book was released on 2012-04-07 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Book contains the Vision of the researchers of the European Network of Excellence NEWCOM++ (Network of Excellence on Wireless COMmunication) on the present and future status of Wireless Communication Networks. In its content, the community of NEWCOM++ researchers, shaped under the common ground of a mainly academic network of excellence, have distilled their scientific wisdom in a number of areas characterized by the common denominator of wireless communications, by identifying the medium-long term research tendencies/problems, describing the tools to face them and providing a relatively large number of references for the interested reader. The identified areas and the researchers involved in their redaction reflect the intersection of the major topics in wireless communications with those that are deeply investigated in NEWCOM++; they are preceded by an original description of the main trends in user/society needs and the degree of fulfilment that ongoing and future wireless communications standards will more likely help achieving. The appendix of the Book contains a list of "Millenium Problems", seminal problems in the area of wireless communication networks, characterized by being crucial and still unsolved. The problems have been identified by NEWCOM++ researchers and filtered by the editors of the Vision Book.
Download or read book Proceedings written by and published by . This book was released on 2005 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Green Radio Communication Networks written by Ekram Hossain and published by Cambridge University Press. This book was released on 2012-07-05 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents state-of-the-art research on green radio communications and networking technology to researchers and professionals working in wireless communication.
