Zichuan Xu
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Alma Mater:澳大利亚国立大学
Degree:Doctoral Degree
School/Department:软件学院、国际信息与软件学院
Discipline:Software Engineering
Business Address:开发区校区综合楼
Contact Information:0411-62274514
E-Mail:z.xu@dlut.edu.cn
Hits:
Indexed by:会议论文
Date of Publication:2017-01-01
Included Journals:CPCI-S
Abstract:Data transfers in contemporary networks usually have associated enforcement policies to ensure data transfer security and system performance. These policies are represented by a service chain that consists of different network functions such as firewalls, Intrusion Detection Systems (IDSs), transcoders, etc. Network Function Virtualization (NFV) has emerged as a promising technology to meet the stringent requirement imposed on the service chain. In this paper, we study NFV-enabled unicasting in SDNs with and without end-to-end delay constraints. We aim to maximize network throughput by dealing with a sequence of NFV-enabled unicast requests without the knowledge of future request arrivals. We first formulate the problems as novel optimization problems in terms of both computing and bandwidth resource consumptions, and provide a generic optimization framework for it. We then develop an online algorithm with guaranteed performance for the problem without the delay requirement and a heuristic with the delay requirement. We finally evaluate the performance of the proposed algorithms through experimental simulations. The results of experimental simulations show that the proposed algorithms are promising.
Currently I am a Professor at Dalian University of Technology. I obtained my PhD degree from Australian National University (ANU), and my PhD thesis is entitled "Cost-Aware Resource Allocation and Provisioning in Cloud Networks". Before joining ANU, I received my Bachelor and Master degree from Dalian University of Technology in China in 2008 and 2011. I was a Research Associate at University College London (UCL) from 2016 to 2017. Website: https://zichuanxu.com/