Performance Evaluation of Wireless Caching Helper Systems

In this work, we evaluate a wireless system in which we distinguish between cacheable and non-cacheable traffic. More specifically, we consider a general system in which a wireless user with limited cache storage requests cacheable content from a data center that can be directly accessed through a b...

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Bibliographic Details
Main Authors: Avgouleas, Ioannis, Pappas, Nikolaos, Angelakis, Vangelis
Format: Conference Proceeding
Language:English
Subjects:
Base stations
Cache storage
Data centers
Delays
Queueing analysis
Throughput
Wireless communication
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Description
Summary:In this work, we evaluate a wireless system in which we distinguish between cacheable and non-cacheable traffic. More specifically, we consider a general system in which a wireless user with limited cache storage requests cacheable content from a data center that can be directly accessed through a base station. The user can be assisted by a pair of wireless helpers that exchange non-cacheable content. Packets arrive at the queue of the source helper in bursts. Each helper has its own caches to assist the user's requests for cacheable content. Files not available from the helpers are transmitted by the base station. We analyze the system throughput and the delay experienced by the user and show how they are affected by the packet arrival rate at the source helper, the availability of caching helpers, the caches' parameters, and the user's request rate by means of numerical results.
ISSN:2160-4894
DOI:10.1109/WiMOB.2019.8923541