Author: Luis GurrieriPublisher:
ISBN:
Category :
Languages : en
Pages : 412
Book Description
Spatiotemporal Characterization of Indoor Wireless Channels
Author: Luis GurrieriMeasurement and Model Based Characterization of Indoor Wireless Channels
Author: Hark-Sang KimPublisher:
ISBN:
Category : Wireless communication systems
Languages : en
Pages : 278
Book Description
Channel Characterization for Indoor Wireless Communication
Author: Kwok Wai CheungPublisher:
ISBN:
Category : Mobile communication systems
Languages : en
Pages : 238
Book Description
Measurement and Characterization of Indoor Ultra-wideband Wireless Channel
Author: Wei-En HsuPublisher:
ISBN:
Category : Wireless communication systems
Languages : en
Pages : 172
Book Description
Characterization of the Indoor Wireless Channel with Experimental Results at Millimeter Wavelengths
Author: Dandan LiuPropagation Channel Characterization, Parameter Estimation, and Modeling for Wireless Communications
Author: Xuefeng YinPublisher: John Wiley & Sons
ISBN: 1118188233
Category : Technology & Engineering
Languages : en
Pages : 418
Book Description
A comprehensive reference giving a thorough explanation of propagation mechanisms, channel characteristics results, measurement approaches and the modelling of channels Thoroughly covering channel characteristics and parameters, this book provides the knowledge needed to design various wireless systems, such as cellular communication systems, RFID and ad hoc wireless communication systems. It gives a detailed introduction to aspects of channels before presenting the novel estimation and modelling techniques which can be used to achieve accurate models. To systematically guide readers through the topic, the book is organised in three distinct parts. The first part covers the fundamentals of the characterization of propagation channels, including the conventional single-input single-output (SISO) propagation channel characterization as well as its extension to multiple-input multiple-output (MIMO) cases. Part two focuses on channel measurements and channel data post-processing. Wideband channel measurements are introduced, including the equipment, technology and advantages and disadvantages of different data acquisition schemes. The channel parameter estimation methods are then presented, which include conventional spectral-based estimation, the specular-path-model based high-resolution method, and the newly derived power spectrum estimation methods. Measurement results are used to compare the performance of the different estimation methods. The third part gives a complete introduction to different modelling approaches. Among them, both scattering theoretical channel modelling and measurement-based channel modelling approaches are detailed. This part also approaches how to utilize these two modelling approaches to investigate wireless channels for conventional cellular systems and some new emerging communication systems. This three-part approach means the book caters for the requirements of the audiences at different levels, including readers needing introductory knowledge, engineers who are looking for more advanced understanding, and expert researchers in wireless system design as a reference. Presents technical explanations, illustrated with examples of the theory in practice Discusses results applied to 4G communication systems and other emerging communication systems, such as relay, CoMP, and vehicle-to-vehicle rapid time-variant channels Can be used as comprehensive tutorial for students or a complete reference for engineers in industry Includes selected illustrations in color Program downloads available for readers Companion website with program downloads for readers and presentation slides and solution manual for instructors Essential reading for Graduate students and researchers interested in the characteristics of propagation channel, or who work in areas related to physical layer architectures, air interfaces, navigation, and wireless sensing
Wideband characterization of the indoor wireless transmission channel[
Author: Alejandro Molina ComasFrequency-domain Measurement and Characterization of Multipath Effects in 2.4 GHz Indoor Wireless Channels
Author: Anbuselvan KuppusamyPublisher:
ISBN:
Category : Broadband communication systems
Languages : en
Pages : 242
Book Description
Exploitation of Space-time Wireless Channel Characteristics for Indoor Source Localization
Author: Donald L. HallPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The ability to localize wireless transmitters in indoor environments is gaining increased interest for commercial and military applications. Conducting indoor localization with precision is an ever-growing need as the conventional Global Positioning System (GPS) is hampered in its ability to provide high resolution location information due to complex multipath scattering within buildings. Conventional localization schemes such as Direction of Arrival (DOA) estimation often fall victim to the same constraints of GPS by means of ambiguous scattering caused by indoor environments leading to inaccurate DOA estimates. Improvements in indoor localization systems can inevitably enhance commercial marketing strategies, military search and rescue missions, wireless security in defense facilities, and even household security for intrusion detection. This dissertation has two primary thrusts. The first thrust addresses the exploitation of polarization diversity for optimal indoor localization performance. A system is developed to extract unique three-dimensional (3D) wireless channel characteristics by combining electromagnetic principles, signal processing techniques, and machine learning for indoor localization. Localization algorithms are developed to demonstrate localization robustness to transmitter polarization and the uniqueness of 3D spatial scattering. The second thrust addresses the degradation on DOA approaches by developing a DOA-based approach to localizing emitters in an indoor environment via machine learning. The approach utilizes spatial correlations between emitters in close-proximity in order to achieve robust localization performance. A theoretical derivation of the ratio of multipath scattering is then developed to improve localization characteristics for DOA-based and other localization solutions.
Advanced Trends in Wireless Communications
Author: Mutamed KhatibPublisher: IntechOpen
ISBN: 9789533071831
Category : Computers
Languages : en
Pages : 534
Book Description
Physical limitations on wireless communication channels impose huge challenges to reliable communication. Bandwidth limitations, propagation loss, noise and interference make the wireless channel a narrow pipe that does not readily accommodate rapid flow of data. Thus, researches aim to design systems that are suitable to operate in such channels, in order to have high performance quality of service. Also, the mobility of the communication systems requires further investigations to reduce the complexity and the power consumption of the receiver. This book aims to provide highlights of the current research in the field of wireless communications. The subjects discussed are very valuable to communication researchers rather than researchers in the wireless related areas. The book chapters cover a wide range of wireless communication topics.