UCLA Extension

RF/Wireless Systems Design

Wireless communications is a pervasive and rapidly evolving field. It enables cellular systems, ad hoc computer networks, implanted medical devices, smart grids, near-field communications, and other uses. These applications place different demands on the wireless link.

The quality of the wireless link limits the useful range and available data rate. It also sets up an important trade-off between these performance parameters and power consumption that strongly depend on the radio transceiver. To assess this trade-off properly requires extensive knowledge of digital communication methods and radio architectures.

This course provides detailed information to model and simulate most wireless systems using modulated signals. It also features the mathematical equations, key simulation results, and performance curves essential to the analysis and design of radio systems. This allows an accurate assessment of the key parameters and trade-offs.

Upon completing this course, you should:

  • Understand physical layer design
  • Model radio systems
  • Simulate wireless systems with modulated signals
  • Investigate system trade-offs
  • Specify energy-efficient radio systems

Course Materials

Lecture notes are distributed on the first day of the course. A disk with several Matlab models covering popular signal sources, radio functions, and measurement sinks also is provided. These materials are for participants only and are not otherwise available for sale or unauthorized distribution.

Coordinator and Lecturer

John B. Groe, MS, Principal Consultant, Innovate Radio, San Diego, California. Mr. Groe has been investigating and developing wireless systems for over 25 years. During this time, he has designed several radio transceivers for a wide range of applications, such as cellular, medical, smart grid, and military systems. He also has extensive experience with advanced radio architectures and key circuits, including direct conversion approaches, RF sampling, fractional-N phase-locked loops, over-sampled data converters, wide bandwidth envelope tracking, and polar modulation.

Mr. Groe’s research focuses on digital techniques to improve radio performance. He combines in-depth system and circuit knowledge to develop advanced solutions. His research has led to 57 patents and several other applications.

Mr. Groe is the author of a number of journal papers, is a peer reviewer, and is a Senior Member of IEEE. He coauthored CDMA Mobile Radio Design and is a contributor to Circuits and Systems for Future Generations of Wireless Communications. He is a part-time professor at UCSD and a guest lecturer at UCLA.

Course Program

Introduction to Wireless Communications
Applications of wireless communications, radio propagation issues and their effect on the wireless link, popular modulation formats used in digital communications, the effect of pulseshaping on the transmitted signal, complex signals, signal properties of different waveforms, performance trade-offs, and SNR budget analysis.

Key transmitter parameters EVM, SNR, and spectral regrowth; crest factor reduction; direct conversion architecture; power amplifier operation and models; efficiency concerns; digital predistortion; wide bandwidth envelope tracking; polar modulation; full duplex operation, receive band noise, and filter elimination; and dynamic range.

Phase noise, integer-N phase-locked loop, details on fractional-N phase-locked loop, modeling the fractional-N phase-locked loop, shaping the phase noise profile, design examples, and automatic frequency control loop operation and design.

Key receiver parameters sensitivity and selectivity, effects of transmit leakage, dynamic range, direct conversion architecture, low-IF architecture, RF sampling, A/D converter principles, delta-sigma modulation techniques for data converters, the digital receiver, and receive diversity.

System Simulation
Platform notes, model integration, performance and efficiency.

For more information contact the Short Course Program Office:
shortcourses@uclaextension.edu | (310) 825-3344 | fax (310) 206-2815