Rappaport Wireless Communication
Claudio Davey
Overview of existing and emerging wireless communications systems; interference, blocking, and spectral efficiency; radio propagation and fading models; performance of digital modulation in the presence of fading; diversity techniques; Code-Division Multiple Access.
COURSE GOALS: To teach the principles underlying the design of digital wireless communications systems, namely, cellular systems, the effect of radio propagation on digital communications systems, methods for improving reliability, and multiple access techniques.
Week 5: Fade statistics, coherence time, fast vs. slow fading, broadband signals and power delay profile, coherence bandwidth, flat vs. frequency-selective fading, effect on digital transmission.
Week 9: Frequency- and Time-Division Multiple Access, arrangement of channels for AMPS, frame structure for IS-136 and GSM standards, capacity. Direct-Sequence Code-Division Multiple Access.
Week 10: Properties of spread spectrum signaling and CDMA, matched-filter receiver, Signal-to-Interference Plus Noise Ratio and probability of error, near-far problem, power control, capacity, frequency-hopping.
Homework 1: Problems on classification and general properties of wireless systems, computation of signal-to-interference ratio, capacity, and spectral efficiency with and without sectorization.
COMPUTER PROJECTS: Matlab assignments include generation of a scatter plot of received powers with large-scale path loss and shadowing, generation of a Rayleigh fading process, and simulation of a simple digital communications model with Rayleigh fading and diversity.
Theodore (Ted) S. Rappaport is the David Lee/Ernst Weber Professor of Electrical Engineering at the NYU Tandon School of Engineering (NYU-Tandon) and is a professor of computer science at New York University's Courant Institute of Mathematical Sciences. He is also a professor of radiology at the NYU School of Medicine.
Rappaport is the founding director of NYU WIRELESS, the world's first academic research center to combine engineering, computer science, and medicine. Earlier, he founded two of the world's largest academic wireless research centers: The Wireless Networking and Communications Group (WNCG) at the University of Texas at Austin in 2002, and the Mobile and Portable Radio Research Group (MPRG), now known as Wireless@ at Virginia Tech, in 1990.
Rappaport is a pioneer in radio wave propagation for cellular and personal communications, wireless communication system design, and broadband wireless communications circuits and systems at millimeter wave frequencies. His research has influenced many international wireless-standards bodies, and he and his students invented the technology of site-specific radio frequency (RF) channel modeling and design for wireless network deployment - a technology now used routinely throughout wireless communications.
Rappaport has served on the Technological Advisory Council of the Federal Communications Commission, assisted the governor and CIO of Virginia in formulating rural broadband initiatives for Internet access, and conducted research for NSF, Department of Defense, and dozens of global telecommunications companies. He has over 100 U.S. or international patents issued or pending and has authored, co-authored, and co-edited 18 books, including the world's best-selling books on wireless communications, millimeter wave communications, and smart antennas.
In 1989, he founded TSR Technologies, Inc., a cellular radio/PCS software radio manufacturer that he sold in 1993 to Allen Telecom which later became CommScope, Inc. (taken private in 2011 by Carlyle Group and now owned by Keysight). In 1995, he founded Wireless Valley Communications, Inc., a pioneering creator of site-specific radio propagation software for wireless network design and management that he sold in 2005 to Motorola.
Dr. Rappaport can be reached by contacting NYU WIRELESS Administrator Pat Donohue at pat.d...@nyu.edu, NYU WIRELESS Center Administrator Teresa Wang at tlw...@nyu.edu or his assistant Leslie Cerve at ce...@cs.nyu.edu. Contact Teresa Wang if you are interested in inviting Dr. Rappaport to give a presentation or attend a meeting.
Driven by ubiquitous usage of mobile devices and the explosive growth and diversification of the Internet of Things (IoT), sixth-generation (6G) wireless systems will need to offer unprecedented high data rate and system throughput, which can be achieved in part by deploying systems transmitting and receiving at millimeter-wave (mmWave) and Terahertz (THz) frequencies (i.e., 30 GHz - 3 THz). These regions of the electromagnetic spectrum are capable of massive data throughput at near zero latency, key to future data traffic demand created by such wireless applications as augmented/virtual reality (AR/VR) and autonomous driving.
Importantly, the linchpin for successful deployment of mmWave and THz systems for 6G wireless communications will be their performance in indoor scenarios. Therefore, accurate THz channel characterization for indoor environments is essential to realizing the designs of transceivers, air interface, and protocols for 6G and beyond.
To this end, NYU WIRELESS has introduced NYUSIM 3.0, the latest version of its MATLAB-based open-source mmWave and sub-THz statistical channel simulation software, enabling the indoor MIMO channel simulations for frequencies from 500 MHz to 150 GHz with RF bandwidth of 0 to 800 MHz. The new NYUSIM 3.0 is publicly available with a simple MIT-style open source acknowledgement license. To date, NYUSIM has been downloaded over 80,000 times.
Rappaport has served on the Technological Advisory Council of the Federal Communications Commission, assisted the governor and CIO of Virginia in formulating rural broadband initiatives for Internet access, and conducted research for NSF, Department of Defense, and dozens of global telecommunications companies throughout his career. He is one of the most highly cited authors in the wireless field, having published over 200 technical papers and over 20 books, and is a highly sought-after expert. He has over 100 patents issued or pending. As a faculty member, Rappaport has advised approximately 100 students who continue to accomplish great things in the communications, electromagnetics, and circuit design fields throughout industry, academia, and government.
In 2018, Rappaport received the Armstrong Medal from the Radio Club of America for demonstrating excellence and lasting contributions to radio arts and sciences. He was elected a Fellow of the National Academy of Inventors in 2018, and was elected to the Wireless History Foundation Hall of Fame In 2019. Rappaport received the IEEE Eric E. Sumner field award in 2020 and was elected into the US National Academy of Engineering in 2020q. Rappaport is a life member of the American Radio Relay League, a licensed professional engineer in Texas and Virginia, and an amateur radio operator (N9NB).
Rappaport has over 100 U.S. or international patents issued or pending and has authored, co-authored, and co-edited over 200 papers and 20 books in the wireless field, including Wireless Communications: Principles & Practice (translated into seven languages), Principles of Communication Systems Simulation with Wireless Applications, and Smart Antennas for Wireless Communications: IS-95 and Third Generation CDMA Applications. He and his students have received many prize paper awards, including the 1999 Stephen O. Rice Prize Paper Award from the IEEE Communications Society for work on site-specific propagation, and the 2015 Donald Fink Prize for work that showed the viability of millimeter wave spectrum for 5G wireless networks.
Rappaport has also been an entrepreneur, encouraging his students to create companies from their research. In 1989, he founded TSR Technologies, Inc., a cellular radio/PCS software radio manufacturer that he sold in 1993 to what became CommScope, Inc. (taken private in 2011 by Carlyle Group and now owned by Keysight). In 1995, he founded Wireless Valley Communications, Inc., a creator of site-specific radio propagation software for wireless network design and management that he sold in 2005 to Motorola (NYSE: MOT).
Rappaport has testified before the U.S. Congress, served as an international consultant for the International Telecommunication Union, consulted for more than 30 major telecommunications firms, and continues to work on many national committees pertaining to communications research and technology policy. He is a highly sought-after consultant and technical expert. He received BS, MS, and PhD degrees in electrical engineering from Purdue University in 1982, 1984, and 1987, respectively, and is a Distinguished Engineering Alumnus of his alma mater.
Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, such as light and magnetic or electric fields, or the use of sound.
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