Saad of Analog Devices Inc.

The talk presents an approach to model the effect of beam alignment errors arising due to inaccurate channel estimation and analyze the impact on the system-level performance of a directional millimeter-wave (mm-wave) cellular network. Specifically, by modeling the variance of the beam alignment errors in terms of link parameters and utilizing stochastic geometric techniques, the loss in the achievable signal-to-noise ratio (SNR) and rate coverage of the network is quantified. The talk considers two network configurations: 1) Modeling and analysis of a mm-wave only network with single-user beamforming at the BS and an isotropic antenna at the user, and 2) Extension to a heterogeneous network consisting of sub-6 GHz and mm-wave BSs.

Biography:

Muhammad Saad Zia is currently working as a Senior Engineer (Wireless Systems) at Analog Devices, Inc., USA. He received the B.E. and M.S. degrees in Electrical Engineering from the National University of Sciences and Technology (NUST), Pakistan in 2012 and 2015, respectively. He then obtained a Ph.D. degree in Electrical and Computer Engineering from Georgia Institute of Technology, USA in 2023. His Ph.D. research was focused on the mathematical analysis of beam misalignment in millimeter-wave cellular systems. In his role at Analog Devices Inc., he deals with various aspects of joint communications and sensing, antenna array design for 6G, and performance analysis of next generation cellular systems. He is also contributing towards the standardization activities for 6G. Before starting his Ph.D., he worked as an Assistant Director with the spectrum regulatory authority of Pakistan.