Communication-Efficient Private Information Acquisition: Multicasting via Crowding

This paper focuses on the way to protect privacy of clients requesting datasets stored in data servers while keeping communication efficiency. To this end, we introduce a novel communication-efficient and protecting framework termed crowded information acquisition (CIA) , well suited large number scenario. We investigate CIA under various conditions addressing possible scenarios. Contrary conventional belief, results claim that demanding private services can enhance protection providing low latency generating small amount traffic.