Synthesis Lectures on Communications – serie

The application of mathematical analysis to wireless networks has met with limited success, due to the complexity of mobility and traffic models, coupled with the dynamic topology and the unpredictability of link quality that characterize such networks.

This book covers the basic aspects of Code Division Multiple Access or CDMA. The basic concept of CDMA is presented, followed by the four basic principles of CDMA systems that impact their performance: interference averaging, universal frequency reuse, soft handoff, and statistical multiplexing.

This lecture covers the fundamentals of spread spectrum modulation, which can be defined as any modulation technique that requires a transmission bandwidth much greater than the modulating signal bandwidth, independently of the bandwidth of the modulating signal.

Based on the encoding process, arithmetic codes can be viewed as tree codes and current proposals for decoding arithmetic codes with forbidden symbols belong to sequential decoding algorithms and their variants. We also propose arithmetic codes with memories which use high memory but low implementation precision arithmetic codes.

The Phase-Locked Loop (PLL), and many of the devices used for frequency and phase tracking, carrier and symbol synchronization, demodulation, and frequency synthesis, are fundamental building blocks in today's complex communications systems.

Such systems, herein called memoryless linear time-invariant (LTI) transceivers with reduced redundancy, require low-complexity arithmetical operations and fast algorithms.Table of Contents: The Big Picture / Transmultiplexers / OFDM / Memoryless LTI Transceivers with Reduced Redundancy / FIR LTV Transceivers with Reduced Redundancy

Table of Contents: Introduction / Electrodynamics of Attenuating Media / Underwater Communication Channels / Underwater Optical Communications: Technology / Underwater Optical Communications: Noise Analysis / Underwater Optical Communications: System Performance / Underwater Quantum Communications / ConclusionsPDF (1764 KB) PDF Plus (1444 KB)

The motivation for developing this synthesis lecture was to provide a tutorial on queuing and trunking, with extensions to networks of queues, suitable for supplementing courses in communications, stochastic processes, and networking.

The material on rate Distortion theory and exploring fundamental limits on lossy source coding covers the often-neglected Shannon lower bound and the Shannon backward channel condition, rate distortion theory for sources with memory, and the extremely practical topic of rate distortion functions for composite sources.

A partial update method can reduce the adaptive algorithm complexity by updating part of the weight vector instead of the entire vector or by updating part of the time. The performance is also compared among similar PU least-squares adaptive filter algorithms, such as PU RLS, PU CG, and PU EDS.

Autonomous vehicles use global navigation satellite systems (GNSS) to provide a position within a few centimeters of truth. A GNSS receiver model is developed and the effects of multipath are investigated. More specifically, GNSS signal models are presented and multipath mitigation techniques are described for various multipath conditions.

We describe sensor network localization problems in terms of a detection and estimation framework and we emphasize specifically a cooperative process where sensors with known locations are used to localize nodes at unknown locations.

The area of detection and estimation in a distributed wireless sensor network (WSN) has several applications, including military surveillance, sustainability, health monitoring, and Internet of Things (IoT).

This book provides the background and the mathematical methods necessary to understand the basic transforms in signal processing and linear systems and probability and random processes to prepare for in depth study of analog and digital communications systems.This tutorial presentation provides developments of Fourier series and other orthogonal series, including trigonometric and complex exponential Fourier series, least squares approximations and generalized Fourier series, and the spectral content of periodic signals.This text thoroughly covers Fourier transform pairs for continuous time signals, Fourier transform properties, and the magnitude and phase of Fourier transforms.The author includes discussions of techniques for the analysis of continuous time linear systems in the time and frequency domains with particular emphasis on the system transfer function, impulse response, system/filter bandwidth, power and energy calculations, and the time domainsampling theorem.The basics of probability and random processes, including the key concepts of expected value, variance, characteristic functions, common probability distributions, autocorrelation, power spectral densities, wide sense stationarity, and ergodicity, are all developed in some detail.  Many examples and problems are included to illustrate and examine these topics.• Provides developments of Fourier series and other orthogonal series• Presents fundamental Fourier transform properties and example applications• Discusses techniques for the analysis of continuous time linear systems in the time and frequency domains• Presents a fundamental development of probability and random variables• Develops the basic ideas of random processes including autocorrelation, power spectral densities, stationarity, and ergodicity

This book provides the background and the mathematical methods necessary to understand the basic transforms in signal processing and linear systems and probability and random processes to prepare for in depth study of analog and digital communications systems.This tutorial presentation provides developments of Fourier series and other orthogonal series, including trigonometric and complex exponential Fourier series, least squares approximations and generalized Fourier series, and the spectral content of periodic signals.This text thoroughly covers Fourier transform pairs for continuous time signals, Fourier transform properties, and the magnitude and phase of Fourier transforms.The author includes discussions of techniques for the analysis of continuous time linear systems in the time and frequency domains with particular emphasis on the system transfer function, impulse response, system/filter bandwidth, power and energy calculations, and the time domainsampling theorem.The basics of probability and random processes, including the key concepts of expected value, variance, characteristic functions, common probability distributions, autocorrelation, power spectral densities, wide sense stationarity, and ergodicity, are all developed in some detail.  Many examples and problems are included to illustrate and examine these topics.• Provides developments of Fourier series and other orthogonal series• Presents fundamental Fourier transform properties and example applications• Discusses techniques for the analysis of continuous time linear systems in the time and frequency domains• Presents a fundamental development of probability and random variables• Develops the basic ideas of random processes including autocorrelation, power spectral densities, stationarity, and ergodicity

The author continues with additional discussion and coverage of the time and frequency domain representations of frequency and phase modulation, including bandwidth calculations, and the use of frequency shift keying, phase shift keying, and differential phase shift keying for the transmission of digital information.

The author continues with additional discussion and coverage of the time and frequency domain representations of frequency and phase modulation, including bandwidth calculations, and the use of frequency shift keying, phase shift keying, and differential phase shift keying for the transmission of digital information.

Tutorial coverage provides an introduction to block and convolutional codes for error control coding, including coding and decoding methods for error detection and correction, tree and trellis representations, and Viterbi decoding.

Tutorial coverage provides an introduction to block and convolutional codes for error control coding, including coding and decoding methods for error detection and correction, tree and trellis representations, and Viterbi decoding.

This book aims to address a wide range of topics in wireless/satellite communications to tackle the issues related to the integration of terrestrial networks (TN) with non-terrestrial networks (NTN). In Release 17, the third-generation partnership project (3GPP) proposed the standardization of NTN to allow 5G-based TN to support NTN.

This book describes the methods and application of Visible Light  Communication (VLC) and covers topics such as light sources, detectors,  VLC systems, optical modulation schemes, optical multiple-access  techniques, new VLC standards, and current applications including  ubiquitous indoor information services, visible-light wireless LAN  (LiFi), underwater optical wireless communications, and VLC with art.

This book describes the methods and application of Visible Light  Communication (VLC) and covers topics such as light sources, detectors,  VLC systems, optical modulation schemes, optical multiple-access  techniques, new VLC standards, and current applications including  ubiquitous indoor information services, visible-light wireless LAN  (LiFi), underwater optical wireless communications, and VLC with art.

Covering trends in networking technologies, advances in SOCs, cloud networking, automation, network insights (telemetry and observability), container networking, network security, and AI infrastructure, readers will gain valuable insights into the cutting-edge technologies shaping the landscape of communication infrastructure.

This book explores the transformative potential of 5G technology in delivering high-speed broadband services through wireless means, particularly targeting underserved and rural areas.

This book explores the transformative potential of 5G technology in delivering high-speed broadband services through wireless means, particularly targeting underserved and rural areas. The book covers several key topics, including high-frequency spectrum bands, advanced transmission schemes, multi-connectivity, adaptive numerology, and Integrated Access and Backhaul (IAB). These elements are critical for enhancing network performance, increasing capacity, and reducing latency. High-frequency spectrum bands, such as those above 24 GHz, are essential for providing the necessary bandwidth to support high data rates and capacity. The book explains how these bands, while offering unprecedented peak rates, present challenges such as limited coverage and penetration, which are addressed through advanced technical solutions. Advanced transmission schemes, including massive beamforming and Multiple-Input Multiple-Output, are explored in detail. These technologies enable the efficient use of the spectrum by allowing multiple user terminals to be served simultaneously on the same frequency resources, thereby increasing the overall network capacity and improving user experiences. Multi-connectivity and adaptive numerology are also key topics. Multi-connectivity allows user equipment to connect to multiple network nodes simultaneously, improving reliability and performance. Adaptive numerology, defined in 3GPP Release 15, supports a flexible range of subcarrier spacing to cater to different services, quality of service requirements, latency needs, and frequency ranges. IAB is another significant topic covered in the book. IAB leverages the same spectrum for both access and backhaul, simplifying deployment and reducing costs. By using the 5G infrastructure to support backhaul, it eliminates the need for extensive fiber installations, making it easier to extend high-speed connectivity to remote and rural areas. These topics are crucial as they collectively address the limitations of traditional wired infrastructure, which is often costly and time-consuming to deploy in rural and hard-to-reach areas. By leveraging 5G Fixed Wireless Access (FWA), the book sets out to solve the problem of the digital divide, aiming to make high-speed internet more accessible and affordable. The relevance of these solutions is underscored by the growing global demand for reliable, high-speed internet access. As the book outlines, 5G FWA not only enhances broadband services but also plays a pivotal role in bridging the digital divide, ensuring that more people, regardless of their location, can benefit from the advancements in internet technology. This makes "5G FWA " an essential read for understanding the future of broadband connectivity and the strategic approaches needed to overcome deployment challenges. This book is intended to be a definitive guide for professionals, researchers, policymakers, and anyone interested in understanding the nuances and implications of this transformative technology.

The book presents a large palette of tools indispensable in the RFID-based passive IoT (such as compute complexity analysis, approximate algorithm design, the probabilistic data structure, and the protocol stack in COTS and software-defined RFID tags) and how these tools can be carefully tuned and adapted to be practically applied in RFID systems.

This book covers the basic principles of wireless communication while delving into the fundamentals of machine learning, including supervised and unsupervised learning, deep learning, and reinforcement learning.

This book delves into the transformative role of Artificial Intelligence in the seamless integration of Terrestrial and Non-Terrestrial Networks, offering a comprehensive exploration of cutting-edge wireless and satellite communication technologies. As the 3rd Generation Partnership Project Release 17 propels 5G services beyond terrestrial limits, this volume addresses the critical challenges and opportunities presented by Non-Terrestrial Networks (NTN), including satellite mobility, dynamic spectrum access, and AI-driven solutions for enhanced connectivity.Readers will uncover a wealth of insights into AI-enabled advancements that are reshaping the landscape of integrated networks. The chapters cover pivotal topics such as AI-driven antenna design, energy efficiency maximization, and machine learning for predictive network management. Expert contributors provide in-depth analyses of NTN-specific issues like Doppler shifts and latency optimization, while also exploring regulatory considerations essential for successful TN-NTN coexistence. This book invites readers to engage with critical questions about the future of communication networks and the indispensable role of AI in overcoming complex technical challenges.