A Detailed Study Of 4g In Wireless Communication Looking Insight In Issues In Ofdm
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A Detailed Study Of 4g In Wireless Communication Looking Insight In Issues In Ofdm
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Author : Neelam Dewangan
language : en
Publisher: Anchor Academic Publishing (aap_verlag)
Release Date : 2014-02-01
A Detailed Study Of 4g In Wireless Communication Looking Insight In Issues In Ofdm written by Neelam Dewangan and has been published by Anchor Academic Publishing (aap_verlag) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-01 with Literary Collections categories.
As a promising technique, OFDM has been widely used in emerging broadband communication systems, such as digital audio broadcasting (DAB), high-definition television (HDTV), and wireless local area network (IEEE 802.11a and HIPERLAN/2). However, as the OFDM signals are the sum of signals with random amplitude and phase, they are likely to have large PAPR that require a linear high-power- amplifier (HPA) with an extremely high dynamic range which is expensive and inefficient. Furthermore, any amplifier nonlinearity causes intermodulation products resulting in unwanted out-of-band power. A number of approaches have been proposed to deal with the PAPR problem, including amongst others, clipping, clipping-and-filtering (CF), coding, companding transform, active constellation extension (ACE), selected mapping (SLM), and partial transmit sequence (PTS). This book proposes an improvement in the selected mapping technique. The resulting scheme can also be applied to the multiple transmitting antenna cases. Further, it compares the simulation results to the existing techniques namely exponential companding transform, repeated clipping and filtering, and adaptive active constellation extension.
4g Mobile And Wireless Communications Technologies
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Author : Sofoklis Kyriazakos
language : en
Publisher: CRC Press
Release Date : 2022-09-01
4g Mobile And Wireless Communications Technologies written by Sofoklis Kyriazakos and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Science categories.
Mobile and wireless communications are moving towards a new era that will be characterized by the seamless collaboration of heterogeneous systems, the need for high speed communications while on the move and for advanced services with quality guarantees. Recent market research studies show that most of the traffic in the future wireless networks will be produced by mobile multimedia services which are expected to proliferate by the year 2010. On the other hand mobile and wireless communications technology is becoming more and more important in developing countries where people demand fast deployment and low cost for broadband wireless internet services.The objective of this volume is to gather research and development on topics shaping the fourth generation (4G) in mobile and wireless communications and reveal the key trends and enabling technologies for 4G. We envisage 4G wireless communication systems as IP based solution providing integrated services (voice, data, multimedia) regardless of time and end-users? location. 4G technologies will manifest the benefits of the wireless and wired technologies convergence, through enabling a wide range of innovative (both indoor and outdoor) applications. 4G applications will feature premium quality, high security and an affordable cost. The vision, though fantastic, is associated with a host of technical and technological challenges.A great deal of the latter are discussed in the articles of this volume, which aims at providing insights on the research issues and solutions that are directly associated with leading edge 4G technologies and services.Taking into account recent developments in the world of wireless communications we have given emphasis to cover all these technologies and aspects that are considered as cornerstones for achieving the goals set for 4G and that will further boost research and development of next-generation mobile communications.
4g Wireless Video Communications
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Author : Haohong Wang
language : en
Publisher: John Wiley & Sons
Release Date : 2009-06-15
4g Wireless Video Communications written by Haohong Wang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-15 with Technology & Engineering categories.
A comprehensive presentation of the video communication techniques and systems, this book examines 4G wireless systems which are set to revolutionise ubiquitous multimedia communication.4G Wireless Video Communications covers the fundamental theory and looks at systems’ descriptions with a focus on digital video. It addresses the key topics associated with multimedia communication on 4G networks, including advanced video coding standards, error resilience and error concealment techniques, as well as advanced content-analysis and adaptation techniques for video communications, cross-layer design and optimization frameworks and methods. It also provides a high-level overview of the digital video compression standard MPEG-4 AVC/H.264 that is expected to play a key role in 4G networks. Material is presented logically allowing readers to turn directly to specific points of interest. The first half of the book covers fundamental theory and systems, while the second half moves onto advanced techniques and applications. This book is a timely reflection of the latest advances in video communications for 4G wireless systems. One of the first books to study the latest video communications developments for emerging 4G wireless systems Considers challenges and techniques in video delivery over 4G wireless systems Examines system architecture, key techniques and related standards of advanced wireless multimedia applications Written from both the perspective of industry and academia
Transmission Techniques For 4g Systems
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Author : Mário Marques da Silva
language : en
Publisher: CRC Press
Release Date : 2012-11-26
Transmission Techniques For 4g Systems written by Mário Marques da Silva and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-26 with Technology & Engineering categories.
Fourth Generation (4G) wireless communication systems support current and emergent multimedia services such as mobile TV, social networks and gaming, high-definition TV, video teleconferencing, and messaging services. These systems feature the All-over-IP concept and boast improved quality of service. Several important R&D activities are currently under way in the field of wireless communications for 4G systems, but the coverage is widespread in the literature. Transmission Techniques for 4G Systems presents a compilation of the latest developments in the field of wireless communications for 4G systems, including evolved Multimedia Broadcast and Multicast Service (eMBMS). Topics include: Transmission schemes suitable for future broadband wireless systems Advances in transmission techniques and receiver design to support emergent wireless needs for 4G requirements Multiple-Input Multiple-Output (MIMO), base station cooperation, macro-diversity, and inter-cell interference cancellation Multihop relay techniques, hierarchical constellations, and multi-resolution techniques Advances using block transmission techniques for different propagation and multi-user environments System-level evaluation of 4G using different transmission techniques Exploring the key requirements of emergent services, this volume provides fundamentals and theory along with transmission and detection techniques and schemes transversal to many digital communication systems—including wireless, cellular, and satellite. If you’re interested in or involved with 4G multimedia systems, this is the book you need on the latest R&D wireless activities so you can plan, design, and develop prototypes and future systems.
4g Wireless Communication Networks
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Author : Johnson I. Agbinya
language : en
Publisher: CRC Press
Release Date : 2022-09-01
4g Wireless Communication Networks written by Johnson I. Agbinya and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Technology & Engineering categories.
This book is a detailed compendium of these major advancements focusing exclusively on the emerging broadband wireless communication technologies which support broadband wireless data rate transmissions.
Lte And The Evolution To 4g Wireless
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Author : Agilent Technologies
language : en
Publisher: John Wiley & Sons
Release Date : 2013-02-15
Lte And The Evolution To 4g Wireless written by Agilent Technologies and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-02-15 with Technology & Engineering categories.
A practical guide to LTE design, test and measurement, this new edition has been updated to include the latest developments This book presents the latest details on LTE from a practical and technical perspective. Written by Agilent’s measurement experts, it offers a valuable insight into LTE technology and its design and test challenges. Chapters cover the upper layer signaling and system architecture evolution (SAE). Basic concepts such as MIMO and SC-FDMA, the new uplink modulation scheme, are introduced and explained, and the authors look into the challenges of verifying the designs of the receivers, transmitters and protocols of LTE systems. The latest information on RF and signaling conformance testing is delivered by authors participating in the LTE 3GPP standards committees. This second edition has been considerably revised to reflect the most recent developments of the technologies and standards. Particularly important updates include an increased focus on LTE-Advanced as well as the latest testing specifications. Fully updated to include the latest information on LTE 3GPP standards Chapters on conformance testing have been majorly revised and there is an increased focus on LTE-Advanced Includes new sections on testing challenges as well as over the air MIMO testing, protocol testing and the most up-to-date test capabilities of instruments Written from both a technical and practical point of view by leading experts in the field
An Adaptive Scheme For Evaluating Ofdm With Lte In Indoor And Outdoor Environment
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Author : K. Riyazuddin
language : en
Publisher: Mohammed Abdul Sattar
Release Date : 2023-12-26
An Adaptive Scheme For Evaluating Ofdm With Lte In Indoor And Outdoor Environment written by K. Riyazuddin and has been published by Mohammed Abdul Sattar this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-26 with Technology & Engineering categories.
Revolutionary changes have been witnessed in the last decade in the field of wireless communications. 2G GSM based communication systems supporting data rates of 10 Kbps, are present and must see extinction. Number of enhanced wireless technologies have been industrialized in the past decade to allow broadband wireless access with data rates greater than 100 Mbps. These enhancements have successively led to the improvement and/or development of 3G and 4G wireless technologies like Worldwide Interoperability for Microwave Access (WiMAX), High Speed Downlink Packet Access (HSDPA), and Long-Term Evolution (LTE). This became possible by discovery of some wireless based technologies such as Orthogonal Frequency Division Multiplexing (OFDM), Code Division Multiple Access (CDMA), etc. These techniques form the basis of understanding in the realm of 3G/4G wireless communication systems. Wireless communications is the fastest budding section of the information communications industry. As such, it has bagged the public imagination and attention of the media. There is a tremendous growth in Cellular systems in the last few years. Certainly, the old wire line systems are supplanted by cellular phones which have become a dire business tool and also a part of the daily life in most of the developed countries. The future of wireless systems seems to be very bright because of an explosive growth in it united with the production of laptop and palmtop computers, both as stand-alone systems and being a part of a very big networking infrastructure. However, many technical challenges to be met while designing robust wireless networks which help in supporting some industrialized applications. OFDM has gained importance in recent years and it is the technique selected for wireless systems, such as Long-Term Evolution (LTE) for 4G communications systems, Wireless Local Area Networks (WLAN) or WiMAX. For this reason, OFDM systems have been under study in order to develop more accurate mobile stations positioning, both in outdoors and indoors environment. Nevertheless, OFDM systems require high timing synchronization accuracy in order to be able to receive the signal correctly, which makes timing synchronization estimation a key issue in OFDM receivers. Propagation is especially complicated over wireless channels, where the presence of multipath propagation, high level of interference signals or the obstruction of Line Of Sight (LOS) path make timing estimation even more difficult in indoor environment. The problem of multipath fading make timing estimation tough in outdoor environment also.
Resource Allocation And Mimo For 4g And Beyond
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Author : Francisco Rodrigo Porto Cavalcanti
language : en
Publisher: Springer
Release Date : 2016-08-23
Resource Allocation And Mimo For 4g And Beyond written by Francisco Rodrigo Porto Cavalcanti and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-23 with Technology & Engineering categories.
This book will be a comprehensive collection of advanced concepts related to 4th generation wireless communication systems. It will be divided into two main parts: resource allocation and transceiver architectures. These two research areas are at the core of the recent advances experimented by wireless communication systems. Each chapter will cover a relevant, timely, topic with two focuses: a first part which is of tutorial and survey nature, reviews the state of the art in that topic, followed by a more deep treatment including current research topics, case studies and performance analysis.
4g Mobile And Wireless Communications Technologies
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Author : Sofoklis Kyriazakos
language : en
Publisher: CRC Press
Release Date : 2022-09-01
4g Mobile And Wireless Communications Technologies written by Sofoklis Kyriazakos and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-01 with Technology & Engineering categories.
Mobile and wireless communications are moving towards a new era that will be characterized by the seamless collaboration of heterogeneous systems, the need for high speed communications while on the move and for advanced services with quality guarantees. Recent market research studies show that most of the traffic in the future wireless networks will be produced by mobile multimedia services which are expected to proliferate by the year 2010. On the other hand mobile and wireless communications technology is becoming more and more important in developing countries where people demand fast deployment and low cost for broadband wireless internet services.The objective of this volume is to gather research and development on topics shaping the fourth generation (4G) in mobile and wireless communications and reveal the key trends and enabling technologies for 4G. We envisage 4G wireless communication systems as IP based solution providing integrated services (voice, data, multimedia) regardless of time and end-users? location. 4G technologies will manifest the benefits of the wireless and wired technologies convergence, through enabling a wide range of innovative (both indoor and outdoor) applications. 4G applications will feature premium quality, high security and an affordable cost. The vision, though fantastic, is associated with a host of technical and technological challenges.A great deal of the latter are discussed in the articles of this volume, which aims at providing insights on the research issues and solutions that are directly associated with leading edge 4G technologies and services.Taking into account recent developments in the world of wireless communications we have given emphasis to cover all these technologies and aspects that are considered as cornerstones for achieving the goals set for 4G and that will further boost research and development of next-generation mobile communications.
4g Lte Lte Advanced For Mobile Broadband
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Author : Erik Dahlman
language : en
Publisher: Academic Press
Release Date : 2013-10-07
4g Lte Lte Advanced For Mobile Broadband written by Erik Dahlman and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-07 with Technology & Engineering categories.
This book focuses on LTE with full updates including LTE-Advanced (Release-11) to provide a complete picture of the LTE system. Detailed explanations are given for the latest LTE standards for radio interface architecture, the physical layer, access procedures, broadcast, relaying, spectrum and RF characteristics, and system performance. Key technologies presented include multi-carrier transmission, advanced single-carrier transmission, advanced receivers, OFDM, MIMO and adaptive antenna solutions, radio resource management and protocols, and different radio network architectures. Their role and use in the context of mobile broadband access in general is explained, giving both a high-level overview and more detailed step-by-step explanations. This book is a must-have resource for engineers and other professionals in the telecommunications industry, working with cellular or wireless broadband technologies, giving an understanding of how to utilize the new technology in order to stay ahead of the competition. New to this edition: In-depth description of CoMP and enhanced multi-antenna transmission including new reference-signal structures and feedback mechanisms Detailed description of the support for heterogeneous deployments provided by the latest 3GPP release Detailed description of new enhanced downlink control-channel structure (EPDDCH) New RF configurations including operation in non-contiguous spectrum, multi-bands base stations and new frequency bands Overview of 5G as a set of well-integrated radio-access technologies, including support for higher frequency bands and flexible spectrum management, massive antenna configurations, and ultra-dense deployments Covers a complete update to the latest 3GPP Release-11 Two new chapters on HetNet, covering small cells/heterogeneous deployments, and CoMP, including Inter-site coordination Overview of current status of LTE release 12 including further enhancements of local-area, CoMP and multi-antenna transmission, Machine-type-communication, Device-to-device communication