[PDF] System Design Issues In Dense Urban Millimeter Wave Cellular Networks eBook

Author : Mandar Narsinh Kulkarni
Publisher :
Page : 410 pages
File Size : 37,99 MB
Release : 2018
Category :
ISBN :

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Upcoming deployments of cellular networks will see an increasing use of millimeter wave (mmWave) frequencies, roughly between 20-100 GHz. The goal of this dissertation is to investigate some key design issues in dense urban mmWave cellular networks by developing mathematical models that are representative of these networks. In the first contribution, stochastic geometry (SG) is used to study the per user rate performance of multi-user MIMO (MU-MIMO) in downlink mmWave cellular network incorporating the impact of a spatially sparse blockage dependent multipath channel and hybrid precoding. Performance of MU-MIMO is then compared with single-user beamforming and spatial multiplexing in different network scenarios considering coverage, rate and power consumption tradeoffs to suggest when to use which MIMO scheme. The second contribution reconsiders a popular received signal power model used in system capacity analysis of MIMO wireless networks employing single user beamforming. A modification is suggested to the model by introducing a correction factor. An approximate analysis is done to justify incorporating such a factor and simulations are performed to validate it's importance. Although this contribution does not study a new system design issue for mmWave cellular, it highlights a shortcoming with using the popular received signal power model to study design issues in mmWave cellular networks. The third and fourth contributions investigate resource allocation in self-backhauled mmWave cellular networks. In order to enable affordable initial deployments of mmWave cellular, self-backhauling is envisioned as a cost-saving solution. The third contribution investigates how to divide resources between uplink and downlink for access and backhaul in self-backhauled networks with single hop wireless backhauling. The performance of dynamic time division duplexing (TDD) and integrated access-backhaul (IAB) is compared with static TDD and orthogonal access backhaul (OAB) strategies using a SG based model. The last contribution of this dissertation addresses the following key question for self-backhauled networks. What is the maximum extended coverage area that a single fiber site can support using multi-hop relaying, while still achieving a minimum target per user data rate? The problem of maximizing minimum per user rates is studied considering a series of deployments with a single fiber site and varying number of relays. Several design guidelines for multi-hop mmWave cellular networks are provided based on the analytical and empirical results.

Author : Theodore S. Rappaport
Publisher : Pearson Education
Page : 705 pages
File Size : 36,97 MB
Release : 2015
Category : Computers
ISBN : 0132172283

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The Definitive, Comprehensive Guide to Cutting-Edge Millimeter Wave Wireless Design “This is a great book on mmWave systems that covers many aspects of the technology targeted for beginners all the way to the advanced users. The authors are some of the most credible scholars I know of who are well respected by the industry. I highly recommend studying this book in detail.” —Ali Sadri, Ph.D., Sr. Director, Intel Corporation, MCG mmWave Standards and Advanced Technologies Millimeter wave (mmWave) is today's breakthrough frontier for emerging wireless mobile cellular networks, wireless local area networks, personal area networks, and vehicular communications. In the near future, mmWave products, systems, theories, and devices will come together to deliver mobile data rates thousands of times faster than today's existing cellular and WiFi networks. In Millimeter Wave Wireless Communications, four of the field's pioneers draw on their immense experience as researchers, entrepreneurs, inventors, and consultants, empowering engineers at all levels to succeed with mmWave. They deliver exceptionally clear and useful guidance for newcomers, as well as the first complete desk reference for design experts. The authors explain mmWave signal propagation, mmWave circuit design, antenna designs, communication theory, and current standards (including IEEE 802.15.3c, Wireless HD, and ECMA/WiMedia). They cover comprehensive mmWave wireless design issues, for 60 GHz and other mmWave bands, from channel to antenna to receiver, introducing emerging design techniques that will be invaluable for research engineers in both industry and academia. Topics include Fundamentals: communication theory, channel propagation, circuits, antennas, architectures, capabilities, and applications Digital communication: baseband signal/channel models, modulation, equalization, error control coding, multiple input multiple output (MIMO) principles, and hardware architectures Radio wave propagation characteristics: indoor and outdoor applications Antennas/antenna arrays, including on-chip and in-package antennas, fabrication, and packaging Analog circuit design: mmWave transistors, fabrication, and transceiver design approaches Baseband circuit design: multi–gigabit-per-second, high-fidelity DAC and ADC converters Physical layer: algorithmic choices, design considerations, and impairment solutions; and how to overcome clipping, quantization, and nonlinearity Higher-layer design: beam adaptation protocols, relaying, multimedia transmission, and multiband considerations 60 GHz standardization: IEEE 802.15.3c for WPAN, Wireless HD, ECMA-387, IEEE 802.11ad, Wireless Gigabit Alliance (WiGig)

Author : Athanasios G. Kanatas
Publisher : CRC Press
Page : 420 pages
File Size : 41,95 MB
Release : 2017-10-16
Category : Computers
ISBN : 1351651870

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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.

Author : Xin-She Yang
Publisher : Springer Nature
Page : 1119 pages
File Size : 10,79 MB
Release : 2023-09-14
Category : Technology & Engineering
ISBN : 981993236X

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This book gathers selected high-quality research papers presented at the Eighth International Congress on Information and Communication Technology, held at Brunel University, London, on 20–23 February 2023. It discusses emerging topics pertaining to information and communication technology (ICT) for managerial applications, e-governance, e-agriculture, e-education and computing technologies, the Internet of Things (IoT) and e-mining. Written by respected experts and researchers working on ICT, the book offers a valuable asset for young researchers involved in advanced studies. The work is presented in four volumes.

Author : Manan Gupta
Publisher :
Page : 0 pages
File Size : 49,32 MB
Release : 2022
Category :
ISBN :

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Millimeter wave (mmWave) integrated access and backhaul (IAB) and multiband heterogeneous networks allow operators to avail more spectral resources and keep up with the intense consumer demand for faster data connectivity. However, these promising network architectures pose new challenges to network resource management, such as multihop routing, link scheduling, and traffic steering, and motivate the re-thinking of traditional solutions. IAB facilitates cost-effective deployment of mmWave cellular networks via multihop self-backhauling, albeit at the cost of poor rate scaling and packet latency. In the first part of this dissertation, we develop data-driven link scheduling policies for IAB networks to minimize the multihop delay while accounting for practical network constraints like feedback delays, choice of half-duplex (HD) or full-duplex (FD) transceivers, and scheduling restrictions. We formulate the link scheduling problem as a Markov decision process (MDP) with a continuous action space and solve it using the deep deterministic policy gradient (DDPG) algorithm. Detailed system-level simulations show that the reinforcement learning RL-based scheduler can reduce the mean delay by 230% and 260% compared to a backpressure scheduler and max-min scheduler respectively. In the second part, we investigate the network-level benefits of upgrading an IAB network with FD transceivers as a potential means to overcome latency and throughput challenges faced by IAB networks. We formulate a network utility maximization problem with practical and tractable throughput and latency constraints to evaluate both FD-IAB and HD-IAB networks and analytically characterize the latency gain from an FD upgrade. Even when the residual self-interference is significantly above the noise floor, this transceiver-level upgrade can improve throughput by 8x and reduce latency by 4x for a fourth-hop user. In the third part, we develop a novel learning-based model predictive control (MPC) approach for base station (BS) selection and band assignment while accounting for user mobility. We first train a deep recurrent neural network to reliably forecast the mobile users' future rates. The MPC controller then uses this forecast to optimize the association decisions to maximize the service rate-based network utility. To efficiently solve the MPC, we also develop an optimization algorithm based on the Frank-Wolfe method. The MPC approach improves the 5th percentile service rate by 2.7x compared to the traditional signal strength-based association. Its performance approaches that of a genie-aided scheme in terms of the number of handovers

Author : Daniel Minoli
Publisher : John Wiley & Sons
Page : 372 pages
File Size : 37,55 MB
Release : 2022-01-06
Category : Technology & Engineering
ISBN : 1119716055

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High-Density and De-Densified Smart Campus Communications Design, deliver, and implement high-density communications solutions High-density campus communications are critical in the operation of densely populated airports, stadiums, convention centers, shopping malls, classrooms, hospitals, dense smart cities, and more. They also drive Smart City and Smart Building use cases as High-Density Communications (HDC) become recognized as an essential fourth utility. However, the unique requirements and designs demanded by HDC make implementation challenging. In High-Density and De-Densified Smart Campus Communications: Technologies, Integration, Implementation and Applications, a team of experienced technology strategists delivers a one-of-a-kind treatment of the requirements, technologies, designs, solutions, and trends associated with HDC. From the functional requirements for HDC and emerging data/Wi-Fi 6/internet access/5G cellular/OTT video, and IoT automation—including pandemic-related de-densification—to the economics of broad deployment of HDC, this book includes coverage of every major issue faced by the professionals responsible for the design, installation, and maintenance of high-density communication networks. It also includes: A thorough introduction to traditional and emerging voice/cellular design for campus applications, including the Distributed Antenna System (DAS) Comprehensive explorations of traditional sensor networks and Internet of Things services approaches Practical discussions of high-density Wi-Fi hotspot connectivity and related technologies, like Wi-Fi 5, Wi-Fi 6, spectrum, IoT, VoWiFi, DASs, microcells issues, and 5G versus Wi-Fi issues In-depth examinations of de-densification, office social distancing, and Ultra-Wideband (UWB) technologies Perfect for telecommunication researchers and engineers, networking professionals, technology planners, campus administrators, and equipment vendors, High-Density Smart Campus Communications will also earn a place in the libraries of senior undergraduate and graduate students in applied communications technologies.

Author : Sanjib Sur
Publisher :
Page : 0 pages
File Size : 15,71 MB
Release : 2018
Category :
ISBN :

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Wireless and mobile systems play an indispensable role in our lives today, and in recent years we have witnessed a tremendous growth of innovative services and applications induced by the ubiquitous nature of these systems. Many of the emerging applications such as autonomous vehicles safety, immersive virtual and augmented reality, tactile internet, holoportation, telesurgery, and control for smart, connected infrastructures, however, face critical hurdles in existing wireless and mobile networks due to their extreme throughput and latency guarantee requirements. Millimeter-wave is emerging as the cornerstone technology for the next generation high-speed and ultra-low latency wireless networks. Along with the benefits of huge unlicensed spectrum resources, however, there are a set of unprecedented system-level challenges. Despite abundant theoretical models, system design for practical millimeter-wave networks and applications has been an open problem for years. The fundamental issue lies in the poor interaction between the millimeter-wave communication signals and the rest of the system. In this dissertation, we have built end-to-end systems that address the primitive challenges of millimeter-wave networks and applications. Through an in-depth understanding of the interactions between millimeter-wave communication, network, and system stack, we have designed, implemented, and experimentally evaluated systems that deliver practical, scalable, and ubiquitous millimeter-wave wireless connectivity. We have also pursued the observation that channel information from the millimeter-wave communication devices embed rich details on the ambiance, users, and objects and can enable new modalities of ad-hoc applications. We have proposed design primitives that address the challenges of a proof-of-concept ad-hoc application, and we have built a prototype system to demonstrate the feasibility.

Author : Zhenyu Xiao
Publisher : CRC Press
Page : 464 pages
File Size : 24,12 MB
Release : 2023-04-25
Category : Technology & Engineering
ISBN : 1000837351

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This book investigates the most advanced theories and methodologies of array beamforming, with a focus on antenna array enabled wireless communication technology. Combining with the current development needs and trends of wireless communication technology around the world, the authors explore the potentials and challenges of large-scale antenna array beamforming technology in next-generation mobile communication and some important emerging application scenarios. The book first introduces the basic structure of antenna array hierarchical codebook and channel estimation with high dimensionality, with which the time cost of searching the channel information can be effectively reduced. It then explicates high-efficiency beamforming transmission methods for point-to-point transmission, full-duplex point-to-point transmission, and point-to-multipoint transmission where array beamforming enabled non-orthogonal multiple access (NOMA) technologies for typical two-user systems and general multi-user systems are emphasized. The book also discusses array beamforming enabled unmanned aerial vehicle (UAV) communications and array beamforming enabled space/air/ground communications, with the uniqueness and relative solutions for single UAV systems and multi-UAV networks being analyzed. This will be a vital reference for researchers, students, and professionals interested in wireless communications, array beamforming, and millimeter-wave communications.

Author : Shahid Mumtaz
Publisher : Academic Press
Page : 374 pages
File Size : 34,52 MB
Release : 2016-12-02
Category : Technology & Engineering
ISBN : 0128044780

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mmWave Massive MIMO: A Paradigm for 5G is the first book of its kind to hinge together related discussions on mmWave and Massive MIMO under the umbrella of 5G networks. New networking scenarios are identified, along with fundamental design requirements for mmWave Massive MIMO networks from an architectural and practical perspective. Working towards final deployment, this book updates the research community on the current mmWave Massive MIMO roadmap, taking into account the future emerging technologies emanating from 3GPP/IEEE. The book's editors draw on their vast experience in international research on the forefront of the mmWave Massive MIMO research arena and standardization. This book aims to talk openly about the topic, and will serve as a useful reference not only for postgraduates students to learn more on this evolving field, but also as inspiration for mobile communication researchers who want to make further innovative strides in the field to mark their legacy in the 5G arena. Contains tutorials on the basics of mmWave and Massive MIMO Identifies new 5G networking scenarios, along with design requirements from an architectural and practical perspective Details the latest updates on the evolution of the mmWave Massive MIMO roadmap, considering future emerging technologies emanating from 3GPP/IEEE Includes contributions from leading experts in the field in modeling and prototype design for mmWave Massive MIMO design Presents an ideal reference that not only helps postgraduate students learn more in this evolving field, but also inspires mobile communication researchers towards further innovation

Author : Wynand Lambrechts
Publisher : Springer Nature
Page : 284 pages
File Size : 29,48 MB
Release : 2020-06-20
Category : Technology & Engineering
ISBN : 3030504727

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This peer-reviewed book explores the technologies driving broadband internet connectivity in the fourth industrial revolution (Industry 4.0). It particularly focuses on potential solutions to introduce these technologies in emerging markets and rural areas, regions that typically form part of the digital divide and often have under-developed telecommunications infrastructures, a lack of skilled workers, and geographical restrictions that limit broadband connectivity. Research shows that ubiquitous internet access boosts socio-economic growth through innovations in science and technology, with the common goal of bringing positive change to the lives of individuals. Fifth-generation (5G) networks based on millimeter-wave (mm-wave) frequency information transfer have the potential to provide future-proof, affordable and sustainable broadband connectivity in areas where previous-generation mobile networks were unable to do so. This book discusses the principles of various technologies that enable electronic circuits to operate at mm-wave frequencies. It examines the importance of identifying, describing, and analyzing technology from a purely technological standpoint, but also acknowledges and investigates the challenges and limitations of introducing such technologies in emerging markets. Presenting recent research, the book spearheads participation in Industry 4.0 in these areas.