您的位置: 首页  学术交流

Several Challenging Problems in Wireless Networks Research

发布时间: 2017-06-24

主题:    Several Challenging Problems in Wireless Networks  Research主讲人:   Li Wei Wayne地点:   松江校区二号学院楼226室时间:   2017-07-11 09:30:00组织单位:   信息科学与技术学院 数字化纺织服装技术教育部工程研究中心

主讲人简介: Dr. Wei Li is a Professor in the Department of ComputerScience at  Texas Southern University (TSU), Houston, USA. He is also the  foundingDirector/PI of NSF Center for Research on Complex Networks at TSU, one  of 27active NSF Centers of Research Excellence in Science and Technology (CREST)  in2017. Before joining TSU, Dr. Li was an Associate Professor with tenure in  theDepartment of Electrical Engineering and Computer Science at the University  ofToledo, USA, and was once also an Associate Professor in the Department  ofOperations Research at the Chinese Academy of Sciences, Beijing, China.  Hisresearch interests are in wireless sensor networks and mobile ad hoc  networks; adaptation,design, and implementation of dynamic models for wireless  and mobile networks;radio resource allocations in wireless multimedia networks;  and mobile andhigh-performance computing etc.

内容摘要:In this presentation, thespeaker will present three recent research  results in wireless networks. One isin bandwidth adaptation of wireless networks  by using network reversibleprocess property. This research verifies the  product-form solution of wholewireless network and further reveals the  importance of single-node research inwireless networks. Another research is in  call admission control based billingstrategies by using the method of Markov  decision process. This research verifiesthe optimal admission threshold policy  for new generated data and then providesa novel method in resolving dynamic  optimal problems in wireless networks. Thethird research is on the investigation  of joining strategies of Second Users(SUs) in a cognitive radio system with a  single Primary User (PU) band that enablesSUs to utilize the unused spectrum  band originally allocated to a PUopportunistically. This research derives the  Nash Equilibriums for non-cooperativejoining strategy and cooperative joining  strategies, respectively. By observingthat an individually optimal strategy does  not yield the socially optimal strategy,this research furthermore proposes an  appropriate admission fee strategy imposedon the SUs and then successfully  bridge the gap between the individually and sociallyoptimal strategies. As a  potential collaboration with scholars who are interestedin these areas, the  speaker will discuss a few challenging problems in theareas which may need to be  paid attention in the near future. Finally, thespeaker will present on how the  current research be linked to the short range wirelesscommunications for  connected vehicle to vehicle (V2V) networks.



撰写:马骏信息员:马骏编辑:陈前