Search Results - mobile+technology

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Orthogonal Time Frequency Space (OTFS) Channel Estimation for Massive MIMO Systems
Orthogonal time frequency space (OTFS) modulation has the potential to enable robust communications in highly mobile scenarios. This is due to multiplexing information-bearing data into nearly-constant channels in the delay-Doppler domain instead of the time-frequency domain, which makes communication more resilient to fast changes in the channel....
Published: 10/2/2023   |   Inventor(s): Ahmed Alkhateeb, Shuaifeng Jiang
Keywords(s): Communications Systems, Mobile technology, Networks, IT, Software and Communication, PS-Wireless and Networking
Category(s): Applied Technologies, Computing & Information Technology, Physical Science, Wireless & Networking
Authenticating a User on a Mobile Device
Protecting mobile devices from unauthorized access is becoming more than indispensable these days. In particular, mobile devices such as smartphones and tablets are pervasive and store increasingly highly sensitive information about a user (e.g., contacts, usernames, passwords, emails, browser histories, business secrets, health conditions, etc.)....
Published: 2/27/2023   |   Inventor(s): Yimin Chen, Yanchao Zhang
Keywords(s): Authentication, Detection, Mobile technology, Recognition imaging, Security, Transactions Security
Category(s): Computing & Information Technology, Physical Science, Intelligence & Security
Efficient Multi-Bit Reconfigurable Reflective Surface (RRS) for mmWave and Terahertz Applications
Background Reflective surfaces, including metasurfaces and reflectarray antennas, are comprised of several subwavelength (< λ/2) passive reflective elements and can steer the reflection of an incident electromagnetic wave in arbitrary directions. Typically, reflective surfaces use one or multiple single-pull-single-through (SPST) switches...
Published: 2/23/2023   |   Inventor(s): Georgios Trichopoulos, Panagiotis Theofanopoulos
Keywords(s): Communications Systems, Defense/military, Imaging, Internet of Things, Mobile technology
Category(s): Computing & Information Technology, Physical Science, Wireless & Networking, Intelligence & Security