Jaiyong Lee received Ph.D degree in Computer engineering from Iowa State University, USA in 1987. He has been with ADD(Agency for Defense Development) as a research engineer from 1977 to 1982, and with Computer Science Dept. of POSTECH as an associate professor from 1987 to 1994. Since 1994, he is a professor in School of EE, Yonsei University. He has been a president of OSIA(Open standards and Internet Association), editor of JCN(Journal of Communication and Networks) and ETRI journal, and served as a chair and committee member in many conferences such as organizing chair of Wibro Developer's Forum(2006), steering committee member of world communication forum(2006) and executive director of Yonsei Engineering Research Park(YERC). He is also actively serving as an Executive Director of KICS(Korea Institute of Communication Sciences), director of Center of IT of Yonsei University(CITY), and director of Center for Advanced RFID/USN Technology Center(CARUT). .
    Now, he is performing research works in the areas of QoS and Mobility Management for supporting 4G architecture, Wireless Sensor Network, and wireless TCP.
IP Connectivity of WSN