81 citations · 153 across the 23 of their papers we have counts for
6 papers · 1 filter
Age of Information in Random Access Networks: A Spatiotemporal Study
Howard H. Yang, Ahmed Arafa, Tony Q. S. Quek +1
We investigate the age-of-information (AoI) in the context of random access networks, in which transmitters need to send a sequence of information packets to intended receivers ove…
Sample, Quantize and Encode: Timely Estimation Over Noisy Channels
Ahmed Arafa, Karim Banawan, Karim G. Seddik +1
The effects of quantization and coding on the estimation quality of Gauss-Markov processes are considered, with a special attention to the Ornstein-Uhlenbeck process. Samples are a…
Pricing Fresh Data
Meng Zhang, Ahmed Arafa, Jianwei Huang +1
We introduce the concept of {\it fresh data trading}, in which a destination user requests, and pays for, fresh data updates from a source provider, and data freshness is captured…
Optimal and Quantized Mechanism Design for Fresh Data Acquisition
Meng Zhang, Ahmed Arafa, Ermin Wei +1
The proliferation of real-time applications has spurred much interest in data freshness, captured by the {\it age-of-information} (AoI) metric. When strategic data sources have pri…
Remote Short Blocklength Process Monitoring: Trade-off Between Resolution and Data Freshness
Stefan Roth, Ahmed Arafa, H. Vincent Poor +1
In cyber-physical systems, as in 5G and beyond, multiple physical processes require timely online monitoring at a remote device. There, the received information is used to estimate…
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…