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Effective I/O Scheme Based on RTP for Multimedia Communication Systems

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Abstract

The prime standard for audio/video transport in IP networks is the Real-time Transport Protocol (RTP), and it is targeted at useful services for the transport of real-time multimedia data. RTP was originally designed for use in multicast conferences, using the lightweight sessions model. RTP (in particular, the data part) is so tightly coupled to the application that a number of people have developed libraries that implement RTP. However, little is known about the RTP overheads between user area and kernel area within operating system. Actually, unnecessary copying between user area and kernel area lowers the system efficiency. In this paper, we present the design and implementation of Enhanced Multimedia Input/Output Scheme based on LINUX. We brought focus to the crossover architecture supporting RTP. Our contributions are able to be summarized into two components: 1) Enhanced Input/Output (EIO) scheme based on LINUX improves the transmission speed by reducing the overheads generated from data copy and context switch between user area and kernel area. And this enables server-based system to transport multimedia data more efficiently. 2) Furthermore, Enhanced Input/Output scheme with RTP (EIORTP) scheme supports efficient multimedia data transmission architecture. The two schemes improve the performance of massive multimedia data transmission.

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Authors and Affiliations

  1. Department of Computer Science and Engineering, Korea University, Seoul, Korea

    Nam-Sup Park & Chong-Sun Hwang

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  1. Nam-Sup Park
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  2. Chong-Sun Hwang
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Correspondence to Nam-Sup Park.

Additional information

Nam-Sup Park received his B.S. and M.S. degrees in computer science and engineering from Pusan University of Foreign Studies, Korea, in 1998 and 2000, respectively. He is currently a Ph.D. candidate in the Department of Computer Science and Engineering, Korea University. His research interests include mobile computing, quality of service and distributed systems.

Chong-Sun Hwang received the B.S. and M.S. degrees in mathematics from Korea University, in 1966 and 1970, respectively, and a Ph.D. degree in computer science and statistics from the University of Georgia, in 1978. From 1978 to 1980, he was an associate professor in University of South Carolina, Lander, USA. He has been a professor in the Department of Computer Science and Engineering, Korea University. His research interests include distributed computing and mobile computing systems.

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Park, NS., Hwang, CS. Effective I/O Scheme Based on RTP for Multimedia Communication Systems. J Comput Sci Technol 21, 989–996 (2006). https://doi.org/10.1007/s11390-006-0989-5

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  • DOI: https://doi.org/10.1007/s11390-006-0989-5

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