A Development Environment for OSA-Based Applications over the Interworked WLAN and Cellular Networks

Authors:
Chung-Ming Huang;Tz-Heng Hsu;Chih-Wen Chao
Affiliations:
Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, R.O.C.;Department of Computer Science and Information Engineering, Southern Taiwan University of Technology, Tainan, R.O.C.;Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, R.O.C.
Venue:
Wireless Personal Communications: An International Journal
Year:
2007

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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.