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Abstract: This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital ...

Abstract: Broadband Massive Multiple Input Multiple Output (Massive MIMO) systems are considered the core technology for Non-Terrestrial Networks (NTNs), enabling wide-area coverage and high-speed ...

5.5 x 6.25 in. (14 x 15.9 cm.) ...

Masoud Akbarzadeh (left), a professor of architecture at the University of Pennsylvania, is working with students to design concrete structures that use as little concrete as possible while remaining ...