Publications

In this paper, we propose a novel system architecture for digital predistortion (DPD) of power amplifiers (PA), where the training of the DPD model is done in the cloud or distributed unit (DU).

A fully digital pulse-width pulse-position modulator (D-PWPM) is proposed that is capable of providing pulse sequences for a switching-mode power amplifier.

Radio over fiber (RoF) is an empowering technology for the next-generation wireless networks including fifth generation cloud radio access networks.

Present interest in using high-speed common carrier digital radio 1-5 has precipitated a need for estimating the performance of such systems during periods of selective (multipath) fading.

Computer aided design and computer aided modeling tools are becoming increasingly important in the design and performance evaluation of communication systems.

This paper presents a practical solution for secure communication by controlling a multi-chaos system via key-drive technology, and by combining classical encryption algorithm and dual chaos encryp

Digital circuits such as the flip-flop use feedback to achieve multistability and nonlinearity to restore signals to logical levels, for example 0 and 1.

We review recent progresses on digital self-coherent detection of differential phase-shift keyed (DPSK) signal using orthogonal differential direct detection followed by high-speed analog-to-digita

The rapid deployment of Gigabit differential signal I/O buffers in ASICs and other ICs for systems such as SONET, Firewire, Ethernet, and Fiber Channel is presenting several challenges for testing.

The Digital Unit Automated Parametric Test System (DSU-APTS) was designed to aid in the development and testing of tone receivers implemented in the DSU.