9 papers
Timely Multi-Process Estimation with Erasures
Karim Banawan, Ahmed Arafa, Karim G. Seddik
We consider a multi-process remote estimation system observing independent Ornstein-Uhlenbeck processes. In this system, a shared sensor samples the processes in such a way…
On Spatial Multiplexing Using Reconfigurable Intelligent Surfaces
Mohamed A. ElMossallamy, Hongliang Zhang, Radwa Sultan +4
We consider an uplink multi-user scenario and investigate the use of reconfigurable intelligent surfaces (RIS) to optimize spatial multiplexing performance when a linear receiver i…
Reconfigurable Intelligent Surfaces for Wireless Communications: Principles, Challenges, and Opportunities
Mohamed A. ElMossallamy, Hongliang Zhang, Lingyang Song +3
Recently there has been a flurry of research on the use of reconfigurable intelligent surfaces (RIS) in wireless networks to create smart radio environments. In a smart radio envir…
Timely Estimation Using Coded Quantized Samples
Ahmed Arafa, Karim Banawan, Karim G. Seddik +1
The effects of quantization and coding on the estimation quality of a Gauss-Markov, namely Ornstein-Uhlenbeck, process are considered. Samples are acquired from the process, quanti…
On Timely Channel Coding with Hybrid ARQ
Ahmed Arafa, Karim Banawan, Karim G. Seddik +1
A status updating communication system is examined, in which a transmitter communicates with a receiver over a noisy channel. The goal is to realize timely delivery of fresh data o…
Towards Optimal Resource Allocation in Wireless Powered Communication Networks with Non-Orthogonal Multiple Access
Mariam M. N. Aboelwafa, Mohamed A. Abd-Elmagid, Alessandro Biason +3
The optimal allocation of time and energy resources is characterized in a Wireless Powered Communication Network (WPCN) with non-Orthogonal Multiple Access (NOMA). We consider two…