81 citations · 153 across the 23 of their papers we have counts for
5 papers · 1 filter
Timely Updating with Intermittent Energy and Data for Multiple Sources over Erasure Channels
Christopher Daniel, Ahmed Arafa
A status updating system is considered in which multiple data sources generate packets to be delivered to a destination through a shared energy harvesting sensor. Only one source's…
Timely Status Updating Over Erasure Channels Using an Energy Harvesting Sensor: Single and Multiple Sources
Ahmed Arafa, Jing Yang, Sennur Ulukus +1
A status updating system is considered in which data from multiple sources are sampled by an energy harvesting sensor and transmitted to a remote destination through an erasure cha…
Timely Private Information Retrieval
Karim Banawan, Ahmed Arafa, Sennur Ulukus
We introduce the problem of \emph{timely} private information retrieval (PIR) from non-colluding and replicated servers. In this problem, a user desires to retrieve a message o…
Download Cost of Private Updating
Bryttany Herren, Ahmed Arafa, Karim Banawan
We consider the problem of privately updating a message out of messages from replicated and non-colluding databases. In this problem, a user has an outdated version of the…
Timely Transmissions Using Optimized Variable Length Coding
Ahmed Arafa, Richard D. Wesel
A status updating system is considered in which a variable length code is used to transmit messages to a receiver over a noisy channel. The goal is to optimize the codewords length…