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The age of information is a measure of the freshness of continually updated information, which has been studied theoretically for a variety of queueing models. We conduct an experimental evaluation of the age of information in various emulated network settings to see how well the queue models approximate a network for the purpose of age. We use CORE and EMANE to deploy a one-dimensional multi-hop...
We propose a model for mobile caching in which the rate of requests for content is dependent on the popularity and the freshness of the information. We model popularity based on the history of requests and freshness based on the age of the content. We consider a discrete time (slotted) system in which new packets arrive at a limited capacity cache at discrete times. We prove that the optimal policy...
We study cellular-like wireless networks in which the cells may overlap substantially, and a common channel is used for all cells. Thus, transmissions intended for one destination (or base station) can cause interference at neighboring destinations. We assume the use of a ??collision-channel?? model, in which arbitrary communication and interference regions are associated with each destination. The...
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