A Development Environment for OSA-Based Applications over the Interworked WLAN and Cellular Networks |
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Authors: | Chung-Ming Huang Tz-Heng Hsu Chih-Wen Chao |
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Institution: | (1) Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.;(2) Department of Computer Science and Information Engineering, Southern Taiwan University of Technology, Tainan, Taiwan, R.O.C. |
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Abstract: | In this paper, we propose an OSA-based development environment for interworking WLAN and 3G cellular networks. The main goal
of our work is to establish and create an environment that can serve as a demonstration of a working network for OSA-based
application developers while featuring mobile services over the interworked LAN and 3G cellular networks. The proposed simulating
environment has (i) a location update scheme that is used to obtain mobile users' locations and status information over the
interworked WLAN and cellular networks, (ii) an instant message gateway (IMG) simulator that is developed to send and receive
generic messages over the interworked WLAN and cellular networks, and (iii) a mapping of Parlay APIs onto SIP signaling messages
for multiparty call applications over the interworked WLAN and cellular networks. An illustrated OSA-based application that
utilizes the corresponding system functions and modules is developed and verified using the proposed simulating environment.
Chung-Ming Huang received the B.S. degree in Electrical Engineering from National Taiwan University on 1984/6, and the M.S. and Ph.D. degrees
in Computer and Information Science from The Ohio State University on 1987/12 and 1991/6 respectively. He is currently a professor
in Department of Computer Science and Information Engineering, National Cheng Kung University, Taiwan, R.O.C. He is the director
of The Promotion Center for Network Applications and Services, Innovative Communication Education Project, Ministry of Education,
Taiwan, R.O.C. His research interests include broadband Internet and applications, wireless and mobile network protocols,
ubiquitous computing and communications, and multimedia streaming.
Tz-Heng Hsu received the B.S. degree from Department of Computer Science and Information Engineering, Feng Chia University on 1996/6,
and the M.S. degree and Ph.D from Department of Computer Science and Information Engineering, National Cheng Kung University
on 1998/7 and 2005/7, Taiwan, R.O.C. He is currently a assistant professor in Department of Computer Science and Information
Engineering, Southern Taiwan University of Technology. His research interests are wireless and mobile network protocols, applications
over interworked WLAN and cellular networks and communications, and multimedia streaming.
Chih-Wen Chao received the B.S. degree from Department of Engineering Science, National Cheng Kung University on 2003/6, and the M.S. degree
from Department of Computer Science and Information Engineering, National Cheng Kung University on 2005/7, Taiwan, R.O.C.
His research interests are OSA-based applications and distributed multimedia systems. |
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Keywords: | Open Service architecture (OSA) instant message service Parlay APIs interworking WLAN and 3G cellular network location update |
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