Implementation and performance evaluation for a ubiquitous and unified multimedia messaging platform

As networking technology advances, more advanced message services are provided. Users may have one or more different message accounts and devices. Before sending messages, the sender must make sure which message service the receipt currently uses. Any misjudgement may delay the time when the messages are received. To make users be able to receive messages anytime and anywhere with any kind of devices, we propose a Ubiquitous and Unified Multimedia Messaging (UMM) platform. The UMM platform integrates different message services and provides a more efficient way for message delivery. Our design does not modify the existing protocols of message services and need not involve the network operators. An analytical model is proposed to evaluate the performance of the implemented This paper is an extension of the work that has won the second place of the Mobile Hero contest sponsored by Industrial Development Bureau of Ministry of Economic Affairs, Taiwan, R.O.C., and was awarded USD 15,000. P. Lin ( ) . S.-H. Wu Department of Computer Science and Information Engineering, National Taiwan University, Taipei 106, R.O.C. e-mail: [email protected] S.-H. Wu e-mail: [email protected] C.-M. Chen Department of Research Scientist, Telcordia Technologies-Applied Research, 1 Telcordia Drive, Piscataway, NJ 08854, U.S.A. e-mail: [email protected] C.-F. Liang Department of Computer and Communications Research Labs, Industrial Technology Research Institute, Hsinchu, Taiwan, R.O.C. e-mail: [email protected] platform. Our study shows that with a large number of message services the user subscribes and long message processing time in the network, the delayed message probability can be limited within 1.5%. This performance is considered satisfactory.