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【信电 讲座】Learning to Optimize Dynamic Content Caching
[ 作者:刘功亮 来源:哈工大(威海)新闻网 浏览:640 录入时间:2018年4月2日 ]

讲座题目:     Learning to Optimize Dynamic Content Caching

人:     Dr. Gan Zheng, Loughborough University, UK

主办单位:     信息与电气工程学院

   间:     201849日,14:00

   点:     G202

主要内容     

Caching popular contents at small cells has been proposed as a promising solution to reduce the backhaul demand and transmission delays, and thus alleviate many bottleneck problems in wireless content networks.  However, content popularity keeps changing over spatio-temporal domains. This calls for effective caching placement schemes that can adapt quickly to the dynamic content popularity. In this talk, we will discuss the joint optimization of content placement and BS densities to minimize the content missing probability in a multi-cluster heterogeneous network. We introduce the convex optimization method for the long-term offline cache placement, and the deep learning based approach for frequent online cache update. The numerical results demonstrate that the proposed algorithms can keep track of the variation of content popularity and maintain low missing probability.




文章发布员:李爱华