DocumentCode :
396600
Title :
Providing flexibility in a convolutional encoder
Author :
Kamuf, Matthias ; Anderson, John B. ; Öwall, Viktor
Author_Institution :
Dept. of Electroscience, Lund Univ., Sweden
Volume :
2
fYear :
2003
fDate :
25-28 May 2003
Abstract :
In future radio systems, flexible coding and decoding architectures will be required. In case of the latter, implementing architectural flexibility with regard to low power issues is a challenging task. The flexible encoding platform in this paper is a first step toward this envisioned decoder. It generates a wide class of codes, starting with convolutional codes. As an extension to this, turbo codes will be included by adding an interleaver. At this prototyping stage, the system is implemented on an FPGA. The decision to choose the observer canonical form is defended by a thorough investigation of its critical path properties. Proper configuration allows code rates of b/c, b=1 ... 15, c=2 ... 16, b\n\n\t\t
Keywords :
convolutional codes; encoding; field programmable gate arrays; logic design; low-power electronics; radio networks; FPGA implementation; WPAN; code rates; convolutional codes; convolutional encoder flexibility; flexible coding/decoding architectures; interleaver; low power systems; observer canonical form critical path properties; power saving; radio systems; turbo codes; unused system module shut down; wireless personal area networks; Application software; Convolutional codes; Decoding; Hardware; Information technology; Polynomials; Prototypes; Turbo codes; Wireless LAN; Wireless personal area networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
Type :
conf
DOI :
10.1109/ISCAS.2003.1205959
Filename :
1205959
Link To Document :
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