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Extended Synchronous Dataflow for Efficient DSP System Prototyping

Cited 15 time in Web of Science Cited 32 time in Scopus
Authors
Park, Chanik; Chung, Jaewoong; Ha, Soonhoi
Issue Date
2002-03
Publisher
Springer Verlag
Citation
Design Automation for Embedded Systems, vol. 6, no. 3, pp. 295-322, Mar. 2002
Keywords
Synchronous dataflowglobal statessynchronous piggybacked dataflowblock reusability
Abstract
Though synchronous dataflow (SDF) graph has been a successful input specification language for digital signal processing (DSP) applications, lack of support for global states makes it unsuitable for multimedia signal processing applications that need global states for efficient implementation. In this paper, we propose synchronous piggybacked dataflow (SPDF), an extension of SDF model to accommodate global states without side effects. Global states are accessed by a special block that piggybacks the global state update request on data samples. Such an extension enlarges the domain of application where dataflow representation can be used for rapid system prototyping. The only penalty it incurs is scheduling complexity since the scheduler now considers control dependency as well as data dependency. We present the static analysis of the SPDF model and an implementation technique for memory efficient code synthesis. Finally, we show experimental results with a real life example, MPEG-audio decoder, to present the novelty and usefulness of our approach.
ISSN
0929-5585 (print)
1572-8080 (online)
Language
English
URI
http://hdl.handle.net/10371/8899
DOI
https://doi.org/10.1023/A:1014070804761
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Computer Science and Engineering (컴퓨터공학부)Journal Papers (저널논문_컴퓨터공학부)
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