报告题目：Analytical Modelling and Quality-of-Service in Wireless Multimedia Networks

报告人：Professor Geyong Min,  University of Exeter, U.K.

报告时间：16:00-17:30, 2019年12月19日

报告地点：长安校区 文津楼3524报告厅

主办单位：普适计算研究团队

报告内容摘要：

With rapid innovation in sophisticated wireless communication technologies, the past years have witnessed a dramatic growth of mobile multimedia applications, for example, Live Mobile Video, 3D Video Stream, VoIP, Mobile TV, and so on. These content-rich and resource-hungry multimedia applications generate complex traffic patterns and have high demands of Quality-of-Service (QoS). However, the inherent features of wireless communications, such as scarce bandwidth, limited transmission range, error-prone channels, and heterogeneous access technologies, lead to a high level of dynamics of available communication resources and pose great challenges on multimedia applications over wireless networks.

In this talk, heterogeneous stochastic models will be firstly presented to capture the traffic characteristics (e.g., burstiness, self-similarity and large-lag correlation) of multimedia applications. An analytical performance model will then be presented for a hybrid traffic scheduling mechanism that integrates the fundamental scheduling schemes in a hierarchical manner and serves as a promising strategy for QoS differentiation in wireless multimedia network. The accuracy of the model is validated through extensive comparison between the analytical results and those obtained from simulation experiments of the actual system subject to the real-world multimedia applications. The model is then used as a cost-effective performance optimization tool for resource allocation and management in wireless multimedia networks. Finally, the related emerging issues and future directions will be presented and discussed.

报告人简介:

Professor Geyong Min is a Chair in High Performance Computing and Networking and the academic lead of Computer Science in the College of Engineering, Mathematics and Physical Sciences at the University of Exeter, UK. His recent research has been supported by European Horizon-2020, FP6/FP7, UK EPSRC, Royal Academy of Engineering, Royal Society, and industrial partners including Motorola, IBM, Huawei Technologies, INMARSAT, and InforSense Ltd. Prof. Min is the Co-ordinator of two recently funded FP7 projects: 1) Quality-of-Experience Improvement for Mobile Multimedia across Heterogeneous Wireless Networks; and 2) Cross-Layer Investigation and Integration of Computing and Networking Aspects of Mobile Social Networks. As a key team member and participant, he has made significant contributions to several EU funded research projects on Future Generation Internet. He has published more than 200 research papers in leading international journals including IEEE/ACM Transactions on Networking, IEEE Journal on Selected Areas in Communications, IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Multimedia, IEEE Transactions on Computers, IEEE Transactions on Parallel and Distributed Systems, and at reputable international conferences, such as SIGCOMM-IMC, INFOCOM, ICDCS, IPDPS, GLOBECOM, and ICC. He is an Associated Editor of several international journals, e.g., IEEE Transactions on Computers, and IEEE Transactions on Cloud Computing. He served as the General Chair/Program Chair of a number of international conferences in the area of Information and Communications Technologies.