Design, modeling, and analysis for cache-aided wireless device-to-device communications

Abstract

Based on the concentrated popularity distribution of video files, caching of popular files on devices, and distributing them via device-to-device (D2D) communications allows a significant improvement of wireless video networks. This dissertation discusses various aspects of the cache-aided wireless D2D networks, aiming to provide further understanding and improvement. Both practical and theoretical perspectives are considered. Starting from the conventional homogeneous user preference model, we analyze the throughput-outage performance of the single-hop and multi-hop cache-aided D2D networks from the information-theoretical point of view. The analysis assumes a model based on the measured popularity distribution of mobile users