5 papers
How Many Simultaneous Beamformers are Needed for Integrated Sensing and Communications?
Kareem M. Attiah, Wei Yu
Consider a downlink integrated sensing and communications (ISAC) system in which a base station employs linear beamforming to communicate to users, while simultaneously uses se…
Uplink-Downlink Duality for Beamforming in Integrated Sensing and Communications
Kareem M. Attiah, Wei Yu
This paper considers the beamforming and power optimization problem for a class of integrated sensing and communications (ISAC) problems that utilize the communication signals simu…
Active MIMO Sensing With Exploration-Exploitation Tradeoff
Nadim Ghaddar, Kareem M. Attiah, Wei Yu
This paper develops an active sensing framework for designing the transmit and receive beamformers of a multiple-input multiple-output (MIMO) radar system. In the proposed techniqu…
RIS-Assisted Joint Sensing and Communications via Fractionally Constrained Fractional Programming
Yiming Liu, Kareem M. Attiah, Wei Yu
This paper studies an uplink dual-functional sensing and communication system aided by a reconfigurable intelligent surface (RIS), whose reflection pattern is configured to trade-o…
Coded Downlink Massive Random Access and a Finite de Finetti Theorem
Ryan Song, Kareem M. Attiah, Wei Yu
This paper considers a massive connectivity setting in which a base-station (BS) aims to communicate sources to a randomly activated subset of users, among a…