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Energy-aware Wireless Transmitters for Broadband Communication Systems

May 5, 2015
2:00 pmto3:30 pm

The Electrical and Computer Engineering Department of Dalhousie University, along with the The Signal Processing / Microwave Theory and Techniques Joint Chapter and Circuits and Systems / Solid State Circuits Society Joint Chapter of the IEEE Canadian Atlantic Section wish to invite you to the following presentation.

Title of Talk: Energy-aware Wireless Transmitters for Broadband Communication Systems
Speaker: Prof. Fadhel Ghannouchi, University of Calgary
Time: 14:00pm – 15:30pm, Tuesday, May 5th, 2015
Place: Dalhousie University, Sexton Campus, Room B310 • Halifax • NS • Canada.
Cost: Free. Light refreshments will be served.


The next wave in the information revolution will consist of bringing intelligence to the information and communication technology (ICT) sector, allowing seamless and intelligent networking and communication between different users using different services and operators. This will lead to the convergence of communication technologies, aiming at the development and deployment of cooperative, broadband and ubiquitous networks that involve existing and future wireless and satellite communications systems. A critical element in enabling the convergence of different communication systems is the development of software defined radio (SDR) that can be used across different frequency bands and for multi-standard applications. This SDR has to be developed to support different frequency carriers and modulation schemes concurrently, in addition to being power- and spectrum-efficient, in order to be able handle Gbps data rates, while being less energy-hungry and more environmentally friendly.

The design of power amplifiers as critical components in any SRD based communication terminal has to be considered closely together with the system architecture, in order to ensure optimal system level performance in terms of quality of signal and power efficiency. This implies the use of adequate transmitter architectures that convert the analog baseband information to architecture-dependent signals, such as Sigma-Delta pulse width modulation based transmitter architecture, polar architecture and LINC architecture. This talk lays out the principles behind SDR Radio systems and examines the design of software-enabled linear and highly efficient RF/DSP co-designed power amplifiers/transmitters for multi-standard and multi-band applications. Recent advances and practical realizations will also be presented and discussed.

About the Speaker:

Fadhel Ghannouchi is currently a professor, Alberta Innovates/Canada Research Chair and founding Director of the iRadio Laboratory ( in the Department of Electrical and Computer Engineering at the University of Calgary, Alberta. His research interests are in the areas of RF and wireless communications, nonlinear modeling of microwave devices and communications systems, design of power- and spectrum-efficient microwave amplification systems and design of SDR systems for wireless and satellite communications applications. His research has led to over 650 refereed publications and 16 US patents (4 pending), 4 books and 3 spun-off companies.

Location Information:

Room B310 is located on the third floor of the ‘B’ building of Sexton Campus. Enter through the doors off Queen Street, and take the staircase to the left to the third floor.

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