Performance Evaluation Of Channel Estimation Techniques For Lte Downlink System
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Performance Evaluation Of Channel Estimation Techniques For Lte Downlink System
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Author : Kahsay Meresa
language : en
Publisher: Lulu.com
Release Date : 2016-12-03
Performance Evaluation Of Channel Estimation Techniques For Lte Downlink System written by Kahsay Meresa and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-03 with Technology & Engineering categories.
In this thesis channel estimation techniques for LTE downlink named Least Square, Minimum Mean Square error and Maximum Likelihood estimation techniques are studied for the pilot symbol based channel estimation. In addition to this the performances of these three channel estimation techniques were also studied by introducing averaging, interpolation and hybrid methods.This work also investigates the complexity of the channel estimation techniques in terms of the number of complex multiplications and by varying the FFT size and number of CP(cyclic prefix). furthermore, the effect of varying the number of antennas at the transmitter and receiver ends, where 2 x 2 and 4 x 4 antenna arrangements are considered as a case studies. The performance of these channel estimation techniques is also studied for EVA standard channel model in LTE. The considered channel model is EVA standard channel model with Doppler shift of 300HZ.
Performance Evaluation Of Channel Estimation Techniques For An Lte Downlink System
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Author : Kahsay Kiross
language : en
Publisher: GRIN Verlag
Release Date : 2016-12-19
Performance Evaluation Of Channel Estimation Techniques For An Lte Downlink System written by Kahsay Kiross and has been published by GRIN Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-19 with Technology & Engineering categories.
Thesis (M.A.) from the year 2016 in the subject Engineering - Communication Technology, grade: 75%, Mekelle University, course: Communication engineering, language: English, abstract: In this thesis channel estimation techniques for LTE downlink named Least Square, Minimum Mean Square error and Maximum Likelihood estimation techniques are studied for the pilot symbol based channel estimation. In addition to this the performances of these three channel estimation techniques were also studied by introducing averaging, interpolation and hybrid methods. This work also investigates the complexity of the channel estimation techniques in terms of the number of complex multiplications and by varying the FFT size and number of CP. furthermore, the effect of varying the number of antennas at the transmitter and receiver ends, where 2 x 2 and 4 x 4 antenna arrangements are considered as a case studies. The performance of these channel estimation techniques is also studied for EVA standard channel model in LTE. The considered channel model is EVA standard channel model with Doppler shift of 300HZ. Simulation results in this thesis show that the ML channel estimation technique has the best performance. In terms of number of complex multiplications it is proved the ML has lower complexity. From the interpolating techniques it is shown the performance of the algorithm integrated with hybrid technique has the best performance. In addition to this it is shown that as the number of transmit and receive antennas increase from 2 x 2 to 4 x 4 the performance of the estimator increases.
Performance Evaluation Of Channel Estimation Techniques
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Author : Kahsay Kiross
language : en
Publisher:
Release Date : 2017-11-04
Performance Evaluation Of Channel Estimation Techniques written by Kahsay Kiross and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-04 with categories.
Wireless Communications Systems Design
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Author : Haesik Kim
language : en
Publisher: John Wiley & Sons
Release Date : 2015-08-06
Wireless Communications Systems Design written by Haesik Kim 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 2015-08-06 with Technology & Engineering categories.
em style="mso-bidi-font-style: normal;"Wireless Communications Systems Design provides the basic knowledge and methodology for wireless communications design. The book mainly focuses on a broadband wireless communication system based on OFDM/OFDMA system because it is widely used in the modern wireless communication system. It is divided into three parts: wireless communication theory (part I), wireless communication block design (part II), and wireless communication block integration (part III). Written by an expert with various experience in system design (standards, research and development)
Lte Advanced Air Interface Technology
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Author : Xincheng Zhang
language : en
Publisher: CRC Press
Release Date : 2012-09-05
Lte Advanced Air Interface Technology written by Xincheng Zhang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-05 with Computers categories.
Opportunities are at hand for professionals eager to learn and apply the latest theories and practices in air interface technologies. Written by experienced researchers and professionals, LTE-Advanced Air Interface Technology thoroughly covers the performance targets and technology components studied by 3GPP for LTE-Advanced. Besides being an expla
Mimo Ofdm For Lte Wifi And Wimax
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Author : Lajos Hanzo
language : en
Publisher: John Wiley & Sons
Release Date : 2010-11-01
Mimo Ofdm For Lte Wifi And Wimax written by Lajos Hanzo 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 2010-11-01 with Technology & Engineering categories.
MIMO-OFDM for LTE, WIFI and WIMAX: Coherent versus Non-Coherent and Cooperative Turbo-Transceivers provides an up-to-date portrayal of wireless transmission based on OFDM techniques augmented with Space-Time Block Codes (STBCs) and Spatial-Division Multiple Access (SDMA). The volume also offers an in-depth treatment of cutting-edge Cooperative Communications. This monograph collates the latest techniques in a number of specific design areas of turbo-detected MIMO-OFDM wireless systems. As a result a wide range of topical subjects are examined, including channel coding and multiuser detection (MUD), with a special emphasis on optimum maximum-likelihood (ML) MUDs, reduced-complexity genetic algorithm aided near-ML MUDs and sphere detection. The benefits of spreading codes as well as joint iterative channel and data estimation are only a few of the radical new features of the book. Also considered are the benefits of turbo and LDPC channel coding, the entire suite of known joint coding and modulation schemes, space-time coding as well as SDM/SDMA MIMOs within the context of various application examples. The book systematically converts the lessons of Shannon's information theory into design principles applicable to practical wireless systems; the depth of discussions increases towards the end of the book. Discusses many state-of-the-art topics important to today's wireless communications engineers. Includes numerous complete system design examples for the industrial practitioner. Offers a detailed portrayal of sphere detection. Based on over twenty years of research into OFDM in the context of various applications, subsequently presenting comprehensive bibliographies.
Evaluation Of Hsdpa And Lte
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Author : Markus Rupp
language : en
Publisher: John Wiley & Sons
Release Date : 2011-12-12
Evaluation Of Hsdpa And Lte written by Markus Rupp 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 2011-12-12 with Technology & Engineering categories.
This book explains how the performance of modern cellular wireless networks can be evaluated by measurements and simulations With the roll-out of LTE, high data throughput is promised to be available to cellular users. In case you have ever wondered how high this throughput really is, this book is the right read for you: At first, it presents results from experimental research and simulations of the physical layer of HSDPA, WiMAX, and LTE. Next, it explains in detail how measurements on such systems need to be performed in order to achieve reproducible and repeatable results. The book further addresses how wireless links can be evaluated by means of standard-compliant link-level simulation. The major challenge in this context is their complexity when investigating complete wireless cellular networks. Consequently, it is shown how system-level simulators with a higher abstraction level can be designed such that their results still match link-level simulations. Exemplarily, the book finally presents optimizations of wireless systems over several cells. This book: Explains how the performance of modern cellular wireless networks can be evaluated by measurements and simulations Discusses the concept of testbeds, highlighting the challenges and expectations when building them Explains measurement techniques, including the evaluation of the measurement quality by statistical inference techniques Presents throughput results for HSDPA, WiMAX, and LTE Demonstrates simulators at both, link- level and system-level Provides system-level and link-level simulators (for WiMAX and LTE) on an accompanying website (https://www.nt.tuwien.ac.at/downloads/featured-downloads) This book is an insightful guide for researchers and engineers working in the field of mobile radio communication as well as network planning. Advanced students studying related courses will also find the book interesting.
5g Mobile Communications
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Author : Saad Asif
language : en
Publisher: CRC Press
Release Date : 2018-07-20
5g Mobile Communications written by Saad Asif and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-20 with Computers categories.
This book will help readers comprehend technical and policy elements of telecommunication particularly in the context of 5G. It first presents an overview of the current research and standardization practices and lays down the global frequency spectrum allocation process. It further lists solutions to accommodate 5G spectrum requirements. The readers will find a considerable amount of information on 4G (LTE-Advanced), LTE-Advance Pro, 5G NR (New Radio); transport network technologies, 5G NGC (Next Generation Core), OSS (Operations Support Systems), network deployment and end-to-end 5G network architecture. Some details on multiple network elements (end products) such as 5G base station/small cells and the role of semiconductors in telecommunication are also provided. Keeping trends in mind, service delivery mechanisms along with state-of-the-art services such as MFS (mobile financial services), mHealth (mobile health) and IoT (Internet-of-Things) are covered at length. At the end, telecom sector’s burning challenges and best practices are explained which may be looked into for today’s and tomorrow’s networks. The book concludes with certain high level suggestions for the growth of telecommunication, particularly on the importance of basic research, departure from ten-year evolution cycle and having a 20–30 year plan. Explains the conceivable six phases of mobile telecommunication’s ecosystem that includes R&D, standardization, product/network/device & application development, and burning challenges and best practices Provides an overview of research and standardization on 5G Discusses solutions to address 5G spectrum requirements while describing the global frequency spectrum allocation process Presents various case studies and policies Provides details on multiple network elements and the role of semiconductors in telecommunication Presents service delivery mechanisms with special focus on IoT
New Directions In Wireless Communications Systems
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Author : Athanasios G. Kanatas
language : en
Publisher: CRC Press
Release Date : 2017-10-16
New Directions In Wireless Communications Systems written by Athanasios G. Kanatas and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-16 with Computers categories.
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.
Mobile Evolution
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Author : Sebastian Thalanany
language : en
Publisher: CRC Press
Release Date : 2015-03-02
Mobile Evolution written by Sebastian Thalanany and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-02 with Computers categories.
This book presents insights, interpretations, concepts, and interdependent views-in the landscape of mobile connectivity and service-that emphasize the significance of a harmonious interplay, cooperation, and coalescing of a variety of interdisciplinary domains of science and art.Mobile Evolution: Insights on Connectivity and Service explores the f