Date: Thursday 26 February 2009 14:00-15:00
Venue: EM1.27
Name: Dr Kun Yang, Reader, University of Essex
Vehicles are an essential part of people’s everyday life. Much work has been conducted to provide a common platform facilitating inter-vehicle communications or intelligent transportation systems largely utilizing IEEE 802.11-based technology such as WAVE (Wireless Access for Vehicular Environment). This talk explores another means to enable vehicular networks, namely, IEEE 802.16 or WiMAX, with particular focus on another type of vehicular network service: the Internet access from mobile vehicles. We will look into a protocol called coordinated external peer communication (CEPEC) designed for this purpose. It is assumed that IEEE 802.16 base stations (BS) are installed along highways and that the same air interface is equipped in vehicles. Certain vehicles locating outside of the limited coverage of their nearest BSs can still get access to the Internet via a multihop route to their BSs. For Internet-access services, the objective of CEPEC is to increase the end-to-end throughput while providing a fairness guarantee in bandwidth usage among road segments. To achieve this goal, the road is logically partitioned into segments of equal length. A relaying head is selected in each segment that performs both local packet collecting and aggregated packets relaying. Some preliminary simulation results will be shown.
Kun Yang received his PhD from the Department of Electronic & Electrical Engineering of University College London (UCL), UK, and MSc and BSc from the Computer Science Department of Jilin University, China. He is currently a Reader in the School of Computer Science and Electronic Engineering, University of Essex, UK. Before joining in University of Essex at 2003, he worked at UCL on several EU research projects such as FAIN, MANTRIP, CONTEXT in the area of IP network management, active networks and context-aware services. Now his main research interests focus on various wireless network technologies and the convergence amongst themselves and with fixed networks such as GPON/EPON. Pervasive service engineering is also within his research coverage. He has published more than 40 journal papers and books, in addition to about 40 major conference papers. He manages research projects funded by various sources such as EPSRC, TSB, British Telecom. He serves on the editorial boards of both IEEE and non-IEEE journals (such as Wiley’s and Springer’s). He is a Senior Member of IEEE.