Title: Quantum Annealing for MIMO Vector Perturbation Precoding
Time: 11 April 2024 15:00-16:00PM
Venue: CNV A1306
Speaker: Prof. Gan Zheng
Abstract:
Vector perturbation precoding has been shown to approach the capacity of multiuser multiple input multiple output (MIMO) communications systems. However, its complexity increases exponentially with the number of users. In this talk, I will introduce a novel lattice reduction aided quantum annealing algorithm for vector perturbation by harnessing physical quantum hardware and the optimization of hardware parameters. We observe a 5dB gain over the lattice reduction zero forcing precoding, which behaves similarly to a quantum annealing algorithm operating without a lattice reduction stage. The proposed algorithm is also shown to approach the performance of a sphere encoder, which exhibits an exponentially escalating complexity.
Bio: Professor Gan Zheng is a Fellow of IEEE and IET. His research interests focus on 6G and beyond wireless networks, with current emphasis on machine learning and quantum computing for wireless communications, reconfigurable intelligent surfaces, and integrated satellite and terrestrial communications. He has published over 200 papers in international journals and conferences, which have received more than 12,000 citations. He received six international best paper awards. He currently serves as an Associate Editor for IEEE Wireless Communications Letters and IEEE Transactions on Communications.
