Stephen Hanly - Professor Communication systems
Date: - Location: Eurecom
Abstract: This talk will start with an overview of the exciting new area of Delay-Doppler communications, including Zac-OTFS. I will then present an efficient practical Zak-OTFS modulation implementation using time and frequency windowing methods. I will present two general classes of delay-Doppler (DD) twisted convolution filters (Type-1 and Type-2), and show that they can be realized by time and frequency windowing functions. I will then propose practical methods to generate time domain Zak-OTFS signals, for actual transmission, using the windowing functions. For Type-1, the signals are generated using an interpolation filter. For Type-2, they are generated using a form of precoded OFDM. We show that this allows a wide variety of pulse shapes to be implemented in practice for Zak-OTFS modulation. If time permits, I will also discuss Zak-OTFS receiver implementations. Short bio: Stephen Hanly is a Professor in the School of Engineering at Macquarie University, Sydney, Australia, and a Fellow of the IEEE. He is internationally known in research on wireless communications, with over 150 research publications. He is a recipient of the INFOCOM Best Paper Award, the IEEE Information Theory Society and the IEEE Communication Society Joint Paper Award, and the IEEE Communications Society Tutorial Paper Award. He has been an Associate Editor of the IEEE Transactions on Wireless Communications and a Guest Editor of the IEEE Journal on Selected Areas twice. He has had major roles at several IEEE conferences and workshops, including IEEE ISIT and IEEE CTW. He did a PhD at Cambridge University and was a Postdoc at AT&T Bell Labs. Previously, he has been on the academic staff at the University of Melbourne and at the National University of Singapore.
