What you'll learn

Understand the principles of wireless signal transmission

Apply channel models, pulse shaping, multi-level modulation, and digital coding in wireless systems

Learn equalization techniques, matched filtering, and spectral estimation

Design and optimize digital beamforming and multiple antenna systems

Review multicarrier systems and estimate the impact of frequency offset

Requirements

A background in wireless communications and digital signal processing

Description

Wireless networks have expanded beyond person-to-person communications, connecting not only users but also machines, devices, and objects. This course will cover the fundamental principles of wireless digital communications and describe the role of digital signal processing in driving wireless communications technologies. Participants will learn how to analyze the performance of digital modulation techniques such as quadrature amplitude modulation (QAM) and apply them in modern wireless systems. High-order modulation (such as 256-QAM, 1024-QAM) achieves greater spectral efficiency, thus leading to higher data rates. They form the basis of current and emerging wireless standards (such as 5G and Wi-Fi). By changing the modulation and coding, the available data rate and robustness of the wireless signal can be adapted to deployment conditions. The Nyquist Theorem allows bandlimited continuous-time signals to be represented by their discrete-time samples. Consequently, a wireless communications system, including channel impairments like multipath fading and noise, can be analyzed in terms of their discrete-time equivalents. Linear time-invariant systems, which are characterized by convolution with an impulse response, can be used to model wireless channels. Deconvolution can be used to equalize the effects of the channel. Upsampling, downsampling, and multirate signal processing allow efficient implementation of pulse shaping at the transmitter and matched filtering at the receiver. This course will present many DSP tools that are relevant to wireless system design, analysis, and optimization. Other practical topics are multiple antenna signal processing (transmit beamforming, spatial multiplexing, and space-time coding), noise-shaping modulation, advanced data converters, fractional-N phase-locked loops, sampling receivers, N-path filters, and pre-distortion linearization.