中国计算机学会青年计算机科技论坛哈尔滨分论坛
CCF Young Computer Scientists & Engineers Forum of Harbin
CCF YOCSEF HARBIN
CCF YOCSEF HARBIN
于2015年5月20日（星期三）上午9:30
在哈尔滨工程大学计算机科学与技术学院学术报告厅（21#426）举行
学术报告会，敬请光临
QoS and Capacity of Vehicular Ad Hoc Networks for Safety Related Services
程 序
在哈尔滨工程大学计算机科学与技术学院学术报告厅（21#426）举行
学术报告会，敬请光临
QoS and Capacity of Vehicular Ad Hoc Networks for Safety Related Services
程 序
9:00 签到
9:30 报告会开始
特邀讲者：马晓敏 教授，美国奥尔罗伯茨大学
演讲题目：QoS and Capacity of Vehicular Ad Hoc Networks for Safety Related Services
参加人员：IT领域专业人士、研究生、媒体、其他有兴趣者
报名方式及联系人：林俊宇，Email: linjunyu@hrbeu.edu.cn, Tel: 15846610355
Abstract:
Transportation systems are designed to transport people from one place to another as safely and efficiently as possible. Unfortunately, many accidents and fatalities occur on the road every day. Recently, the development of the Intelligent Transportation System (ITS) has been advancing towards safe and smooth driving without delay. Wireless communication systems are expected to play a pivotal role in the ITS safety-related applications. The Dedicated Short Range Communication (DSRC) standard with 75 MHz at 5.9 GHz band was projected and licensed to support low-latency wireless data communications between vehicles and from vehicles to roadside units in the USA. It is being standardized as IEEE 802.11p. Vehicle safety-related communication services require reliable and fast message delivery in vehicular ad hoc networks (VANETs). The potential safety applications of DSRC require a robust dissemination of safety messages with stringent delay and reliability requirements. Research on enhancing current DSRC systems to meet the given quality of service (QoS) for safety applications is going on.
In this presentation, QoS and capacity issues in VANETs for safety-related broadcast services are addressed. First, a short overview of IEEE 802.11p for ITS and challenges of VANETs for safety applications is given. Second, existing QoS metrics to characterize VANET behavior for the safety applications and analytical models for deriving the QoS metrics are summarized and compared. Then, new QoS metrics and requirements that are functions of awareness range, time window, and vehicle driving environment and direction to reflect and distinguish features of individual safety applications with higher granularity are introduced and explained. Consequently, with these new QoS metrics, current DSRC system settings or new protocols can be objectively evaluated and designed. Third, Novel analytic modeling of current VANET is conducted to quantify DSRC channel capacity for safety applications and estimate spectrum resource gap between what the current DSRC VANET could provide and what is needed for assurance of required QoS for all safety applications. Finally, some potential solutions to optimizing and improving capacity of vehicular networks for safety applications with required QoS are suggested. This research will speed up development and dissemination of next-generation cars equipped with wireless communication capability.
Biographical Sketch
Xiaomin Ma (M’03-SM’08) received B.E. and M.E. degrees in electrical engineering in 1984 and 1989, respectively. He got the Ph.D. degree in Information engineering at the Beijing University of Posts & Telecommunications, China, in 1999. From 2000 to 2002, he was a post-doctoral fellow in the Department of Electrical and Computer Engineering, Duke University, USA. He had been teaching in the field of Electrical and Computer Engineering as an assistant professor and associate professor at the Petroleum University of China for about eight years. Then, he worked in a telecommunication company (Huawei in Beijing) for a short time. Currently, he is a professor in the Department of Engineering at Oral Roberts University in U.S. He has published over 100 papers in peer-reviewed journals and conferences. He also holds a US patent. He is the recipient of Best Paper Award in IEEE International Conference on Network Infrastructure and Digital Content. He is in Editorial Board of International Journal of Vehicular Technology, Hindawi Publish House. Also, he is a guest editor of Special Issue on "Reliable and secure VANETs" in IEEE Transactions on Dependable and Secure Computing. His research interests include stochastic modeling and analysis of computer and communication systems, physical layer and MAC layer of vehicular ad hoc wireless networks, computational intelligence and its applications to coding, signal processing, and control, and Quality of service (QoS) and call admission control protocols in wireless networks. He is (or was) PI, Co-PI or project leader in several projects sponsored by NSF, NSF EPSCoR, Motorola, Chinese NSF, AFOSR, and ARO, etc. Currently, he is a senior member of the IEEE.
京公网安备 11010802032778号
所有评论仅代表网友意见