关于韩国首尔大学唐建华博士学术报告通知
发布人:吴春风  发布时间:2018-04-02   浏览次数:14

报告题目:On the Interactions of Communication, Computing and Caching in Cloud RAN under Two Timescales

报告人:唐建华博士,韩国首尔大学助理教授

时间:15:30-16:3044日(周三)

地点:逸夫科学馆405

主持人:官权升

报告摘要:

There is a trend that the functionalities of communication, computing, and caching (CC&C) are merging together in the future networks. Recently, this mergence is formed by the concept of cloud radio access network (C-RAN) with caching as a service (CaaS). In this talk, we dissect the interactions of CC&C in C-RAN with CaaS from two dimensions: physical resource dimension and time dimension. In the physical resource dimension, we identify how to segment the baseband unit (BBU) pool resources (i.e. computation and storage) into different types of virtual machines (VMs). In the time dimension, we address how the long-term resource segmentation in the BBU pool impacts on the optimal short-time radio resource allocation (e.g., transmit beamforming design) at the remote radio heads. We formulate the problem as a stochastic mixed-integer nonlinear programming (SMINLP) to minimize the system cost. After a series of approximation, including sample average approximation, successive convex approximation, and semidefinite relaxation, the SMINLP is approximated as a global consensus problem. The alternating direction method of multipliers (ADMM) is utilized to obtain the solution in a distributed and parallel fashion. We also show the simulation results to confirm that the proposed scheme is more cost-saving than that without considering the integration of CC&C.

  

报告人简介:

  

唐建华博士于2010年毕业于东北大学,获得工学学士,2015年毕业于新加坡南洋理工大学,获得博士学位。2015年3月-2016年10月在新加坡科技设计大学从事博士后研究2016年12月至今,在韩国首尔大学担任研究型助理教授。他专注于云计算以及5G移动通信系统的研究,特别集中在将云计算应用到通信系统中。唐建华博士于2016年获得韩国政府颁发的“高丽研究学者”奖励,于2018年获得IEEE通信学会最佳青年论文奖提名