Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems

Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems PDF Author: Tugay Eyceöz
Publisher:
ISBN:
Category :
Languages : en
Pages : 187

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Book Description
Keywords: wireless communication systems, long range prediction, deterministic channel modeling.

Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems

Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems PDF Author: Tugay Eyceöz
Publisher:
ISBN:
Category :
Languages : en
Pages : 187

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Book Description
Keywords: wireless communication systems, long range prediction, deterministic channel modeling.

Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems

Deterministic Modeling and Long Range Prediction of Fast Fading Channels with Applications to Mobile Radio Systems PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
In wireless communication systems, the direct signal and the reflected signals form an interference pattern resulting in a received signal given by the sum of these components. They are distinguished by their Doppler shifts at the mobile. Since the parameters associated with these components are slowly varying, the fading coefficients can be accurately predicted far ahead. We introduced a novel algorithm for long range prediction of fading channels. This algorithm finds the linear Minimum MeanSquared Error (MMSE) estimate of the future fading coefficients given a fixed number of previous observations. We show that thesuperior performance of this algorithm is due to its longer memoryspan achieved by using lower sampling rate given fixed model orderrelative to the conventional (data rate) methods of fading prediction. This long range prediction capability for fading channels would provide enabling technology for accurate power control, reliable transmitter and/or receiver diversity, more effective adaptive modulation and coding and improvements in many other components ofwireless systems. In this thesis, we demonstrate that largeimprovements in the performance are possible for both flat and frequency-selective rapidly varying fading channels when the proposed prediction method is used. We illustrate the performance enhancements both at the transmitter and the receiver with both theoretical and simulation results.

Mobile Fading Channels

Mobile Fading Channels PDF Author: Matthias Pätzold
Publisher: Wiley-Blackwell
ISBN:
Category : Computers
Languages : en
Pages : 440

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Book Description
Mobile channel fading is a loss in transmission intensity caused by changes in the transmission medium. By dealing with the modelling, analysis and simulation of mobile fading channels this text provides a fundamental understanding of many issues in the area of mobile fading channel modelling.; The main topics addressed in the volume are: fundamentals of stochastic and deterministic channel models and modelling and simulation of frequency-nonselective and frequency-selective fading channels. The guide also features methods for the design and realization of efficient channel simulators and fast channel simulators and MATLAB-programs for the evaluation and simulation of mobile fading channels.

Multirate Systems: Design and Applications

Multirate Systems: Design and Applications PDF Author: Jovanovic-Dolecek, Gordana
Publisher: IGI Global
ISBN: 1591400198
Category : Computers
Languages : en
Pages : 322

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Book Description
Digital signal processing is an area of science and engineering that has been developed rapidly over the past years. This rapid development is the result of the significant advances in digital computer technology and integrated circuits fabrication. Many of the signal processing tasks conventionally performed by analog means are realized today by less expensive and often more reliable digital hardware. Multirate Systems: Design and Applications addresses the rapid development of multirate digital signal processing and how it is complemented by the emergence of new applications.

Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 854

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Robust Signal Processing for Wireless Communications

Robust Signal Processing for Wireless Communications PDF Author: Frank Dietrich
Publisher: Springer Science & Business Media
ISBN: 3540742492
Category : Technology & Engineering
Languages : en
Pages : 286

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Book Description
Optimization of adaptive signal processing algorithms for wireless communications is based on a model of the underlying propagation channel. In practice, this model is never known perfectly. For example, its parameters have to be estimated and are only known with significant errors. In this book, a systematic treatment of this practical design problem is provided.

Uncoded Multimedia Transmission

Uncoded Multimedia Transmission PDF Author: Feng Wu
Publisher: CRC Press
ISBN: 100040868X
Category : Computers
Languages : en
Pages : 349

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Book Description
An uncoded multimedia transmission (UMT) system is one that skips quantization and entropy coding in compression and all subsequent binary operations, including channel coding and bit-to-symbol mapping of modulation. By directly transmitting non-binary symbols with amplitude modulation, the uncoded system avoids the annoying cliff effect observed in the coded transmission system. This advantage makes uncoded transmission more suited to both unicast in varying channel conditions and multicast to heterogeneous users. Particularly, in the first part of Uncoded Multimedia Transmission, we consider how to improve the efficiency of uncoded transmission and make it on par with coded transmission. We then address issues and challenges regarding how to better utilize temporal and spatial correlation of images and video in the uncoded transmission, to achieve the optimal transmission performance. Next, we investigate the resource allocation problem for uncoded transmission, including subchannel, bandwidth and power allocation. By properly allocating these resources, uncoded transmission can achieve higher efficiency and more robust performance. Subsequently, we consider the image and video delivery in MIMO broadcasting networks with diverse channel quality and varying numbers of antennas across receivers. Finally, we investigate the cases where uncoded transmission can be used in conjunction with digital transmission for a balanced efficiency and adaptation capability. This book is the very first monograph in the general area of uncoded multimedia transmission written in a self-contained format. It addresses both the fundamentals and the applications of uncoded transmission. It gives a systematic introduction to the fundamental theory and concepts in this field, and at the same time, also presents specific applications that reveal the great potential and impacts for the technologies generated from the research in this field. By concentrating several important studies and developments currently taking place in the field of uncoded transmission in a single source, this book can reduce the time and cost required to learn and improve skills and knowledge in the field. The authors have been actively working in this field for years, and this book is the final essence of their years of long research in this field. The book may be used as a collection of research notes for researchers in this field, a reference book for practitioners or engineers, as well as a textbook for a graduate advanced seminar in this field or any related fields. The references collected in this book may be used as further reading lists or references for the readers.

Wired/Wireless Internet Communications

Wired/Wireless Internet Communications PDF Author: Fernando Boavida
Publisher: Springer Science & Business Media
ISBN: 3540726942
Category : Computers
Languages : en
Pages : 394

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Book Description
This book constitutes the refereed proceedings of the 5th International Conference on Wired/Wireless Internet Communications, WWIC 2007, held in Coimbra, Portugal in May 2007. The 32 revised full papers cover transport layer issues, handover and QoS, traffic engineering, audio/video over IP, IEEE 802.11 WLANs, sensor networks, protocols for ad-hoc and mesh networks, as well as OFDM systems.

Antenna Array Receiver Design and Analysis in Fast Fading Environments

Antenna Array Receiver Design and Analysis in Fast Fading Environments PDF Author: Ming Yan
Publisher:
ISBN:
Category :
Languages : en
Pages : 218

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Proceedings

Proceedings PDF Author:
Publisher:
ISBN:
Category : Communications, Military
Languages : en
Pages : 782

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Book Description