Abstract
3G-324M is a multimedia transmission protocol designed for 3G communication environment. Meanwhile H.245 standard is a control protocol in 3G-324M and gives specific descriptions about terminal information messages in H.245 control channel as well as the procedures using them. The message syntax is defined using an external data representation standard called Abstract Syntax Notation One (ASN.1). For transmission, ASN.1 formatted data is transformed into bit-stream based on an ASN.1 encoding standard called Packed Encoding Rules (PER). In order to meet the requirement of high speed data transfer in 3G communication, it is important to design the procedure of message processing as simple as possible. In this paper, we propose Single-step Direct Message Transformation (SDMT)for the optimization of tree-structured message processing in H.245 module. By testing in realistic environments in some China industries, performance evaluation shows that code redundancies in terms of file size and code size are reduced significantly.
The work is supported by Research Grant Council (RGC) Hong Kong, SAR China, under grant nos.: CityU 1055/00E and CityU 1039/02E and CityU Strategic grant nos. 7001709 and 7001587 and This paper is sponsored by 973 National Basic Research Program, Minister of Science and Technology of China under Grant No. 2003CB317003.
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References
ITU-T H.324, Terminal for low bit-rate multimedia communication. Int’l Telecommunication Union (2002)
ITU-T H.245, Control protocol for multimedia communication. Int’l Telecommunication Union (2003)
ITU-T ISO/IEC IS 8824: 1987, Information processing systems – Open Systems Interconnection – Specification of Abstract Syntax Notation One (ASN.1). Int’l Telecommunication Union (1987)
ITU-T ISO/IEC IS 8825-2: 1995, Information Technology – ASN.1 encoding rules: Specification of Packed Encoding Rules (PER). Int’l Telecommunication Union (1995)
ITU-T ISO/IEC IS 8825: 1987, Information processing systems – Open Systems Interconnection – Specification of Basic Encoding Rules for Abstract Syntax Notation ONE (ASN.1). Int’l Telecommunication Union (1987)
Neufeld, G.W., Yang, Y.: The Design and Implementation of an ASN.1-C Compiler. IEEE Transactions on Software Engineering 16(10), 1209–1220 (1990)
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Yuen, MC., Shen, J., Jia, W., Han, B. (2005). Simplified Message Transformation for Optimization of Message Processing in 3G-324M Control Protocol. In: Lu, X., Zhao, W. (eds) Networking and Mobile Computing. ICCNMC 2005. Lecture Notes in Computer Science, vol 3619. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11534310_9
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DOI: https://doi.org/10.1007/11534310_9
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-28102-3
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