Statistical Characterization of an Indoor Ultra-wideband (UWB) Channel PDF Download

Author: Sania Salahuddin
Publisher:
ISBN:
Category : Wireless communication systems
Languages : en
Pages : 238

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Author: Sreevinay Netrapala
Publisher:
ISBN:
Category :
Languages : en
Pages : 70

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Book Description
The indoor channel parameters appears different for Ultra Wide Band (UWB) systems than it does to narrow band systems. Generally UWB pulses are short and do not overlap in time like multipath sine waves. According to electromagnetic theory, lower frequencies have better penetrating properties. The combination of larger spectrum and lower frequencies possessed by UWB signals makes it easy to penetrate through walls, floors, doors, wood, ceilings, etc. This penetration property plays a very important role in indoor UWB communication system. This thesis presents the statistical analysis of large scale, small scale and time dispersal parameters in different wall corridor environments and through-the-walls (Gypsum wall) in indoor classroom environments. Channel modeling usually includes the characterization of different channel parameters like path loss, shadowing, multipath delay spread, and coherence bandwidth, multipath arrival times, average multipath intensity profile, received amplitude distribution of the multipath components. Different UWB channel models exists for indoor environment in literature. In this thesis, the Channel Impulse Response (CIR) of the environments are extracted from the CLEAN algorithm and with this CIRs and also able to extract other small scale and time dispersal channel parameters. The large scale parameters were also v extracted and the path loss exponent was compared with different indoor environments. From the power decay profile, RMS delay, mean excess delay, and average RMS values were calculated. The variations in the parameter values and the distribution fits were analyzed and noted to better estimate the channel. The experiments were solely conducted in classroom 202-203 and corridors in Nedderman Hall, 2nd and 3rd floor at the University of Texas at Arlington. The experimental results have been discussed.

Author: Kei Hao
Publisher:
ISBN:
Category :
Languages : en
Pages : 160

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Author: Javier Dacuña Santos
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Huseyin Arslan
Publisher: John Wiley & Sons
ISBN: 0470042389
Category : Technology & Engineering
Languages : en
Pages : 523

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Book Description
ULTRA WIDEBAND WIRELESS COMMUNICATION AN INTERNATIONAL PANEL OF EXPERTS PROVIDE MAJOR RESEARCH ISSUES AND A SELF-CONTAINED, RAPID INTRODUCTION TO THE THEORY AND APPLICATION OF UWB This book delivers end-to-end coverage of recent advances in both the theory and practical design of ultra wideband (UWB) communication networks. Contributions offer a worldwide perspective on new and emerging applications, including WPAN, sensor and ad hoc networks, wireless telemetry, and telemedicine. The book explores issues related to the physical layer, medium access layer, and networking layer. Following an introductory chapter, the book explores three core areas: Analysis of physical layer and technology issues System design elements, including channel modeling, coexistence, and interference mitigation and control Review of MAC and network layer issues, up to the application Case studies present examples such as network and transceiver design, assisting the reader in understanding the application of theory to real-world tasks. Ultra Wideband Wireless Communication enables technical professionals, graduate students, engineers, scientists, and academic and professional researchers in mobile and wireless communications to become conversant with the latest theory and applications by offering a survey of all important topics in the field. It also serves as an advanced mathematical treatise; however, the book is organized to allow non-technical readers to bypass the mathematical treatments and still gain an excellent understanding of both theory and practice.

Author: Pascal Pagani
Publisher: John Wiley & Sons
ISBN: 1118622960
Category : Technology & Engineering
Languages : en
Pages : 185

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Book Description
Ultra Wide Band (UWB) technology consists of transmitting radio signals over frequency bandwidths from 500 MHz to several GHz. Its unique characteristics may be exploited for the design of high data rate wireless communication systems, as well as localization and imaging applications. The development and optimization of such systems require a precise knowledge of the radio transmission medium. This book examines all aspects of the propagation channel for UWB systems. UWB technology is first presented, with a particular emphasis being placed on its applications, spectrum regulation issues, and the different communication techniques. The authors introduce the theoretical bases of radioelectric propagation and give an overview of the channel sounding techniques adapted for UWB signals. The two main principles of UWB channel modeling are finally exposed and illustrated: deterministic channel modeling, based on the simulation of the propagation phenomena in a given environment, and statistical channel modeling, which relies on the experimental analysis of the main channel characteristics.

Author: Shruthishree Bangalore Krishnamurthy
Publisher:
ISBN:
Category :
Languages : en
Pages : 63

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Book Description
Ultra-wideband technology finds various applications in radar technology, medical imaging, see-through-wall applications, surveillance and short distance communication applications. All of these applications require that the behavior of the channel be estimated giving a priori information about the various attributes of the channel like path loss, delay spread, channel capacity and so on. These parameters are the key to design an effective communication infrastructure suitable for the needs of the application. In this thesis, the main aim was to model the channel and extract the various parameters related to the channel through data processing methods. In particular, a classroom environment was chosen and various scenarios were considered. Channel Impulse Responses (CIR) were extracted for the scenarios using the CLEAN algorithm, Empirical RMS delay spread and mean excess delay values were calculated from the CIR's. Values for path loss exponent and shadowing are also calculated. Based on the measurement data, the RMS delay spread and path loss have been modeled based on the probability density functions (PDFs) and the best distribution fits are provided. obtain the best distribution fits. The results obtained are compared with existing standards.

Author: Mohammad Abdul Matin
Publisher: BoD – Books on Demand
ISBN: 9533074523
Category : Computers
Languages : en
Pages : 400

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Book Description
This book explores both the state-of-the-art and the latest achievements in UWB antennas and propagation. It has taken a theoretical and experimental approach to some extent, which is more useful to the reader. The book highlights the unique design issues which put the reader in good pace to be able to understand more advanced research.

Author: Abderrahim Elmoataz
Publisher: Springer
ISBN: 3642312543
Category : Computers
Languages : en
Pages : 607

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Book Description
This book constitutes the refereed proceedings of the 5th International Conference on Image and Signal Processing, ICISP 2012, held in Agadir, Morocco, in June 2012. The 75 revised full papers presented were carefully reviewed and selected from 158 submissions. The contributions are grouped into the following topical sections: multi/hyperspectral imaging; image itering and coding; signal processing; biometric; watermarking and texture; segmentation and retieval; image processing; pattern recognition.

Author: Thomas Kaiser
Publisher: John Wiley & Sons
ISBN: 9780470740002
Category : Technology & Engineering
Languages : en
Pages : 266

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Book Description
Up-to-date coverage of the cutting-edge research on UWB Systems with Multiple Antennas In this book, the authors investigate the benefits of combining UWB and MIMO technologies; highlighting five aspects of this promising research field: channel capacity, space-time coding, beamforming and localization, time-reversal transmission, and UWB-MIMO relay. The book presents a systematic and in-depth discussion for each of the hot topics, providing an insight into the cutting-edge research currently undertaken. It is expected that the ideas and approaches illustrated in this book will inspire sparks for the emerging technologies in short-range high data-rate wireless communications and other related applications. Key Features: Provides a thorough coverage combining the UWB and MIMO, outlining the opportunities and benefits created by the combination of these technologies Highlights five aspects of this promising research field: channel capacity, space-time coding, beamforming and localization, time-reversal transmission, and UWB-MIMO relay Covers UWB-MIMO channel measurement and models This book will serve as an invaluable reference for academic and professional researchers in wireless communications, and graduate students. Engineers and technical professionals will also find the book insightful