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Volume : II, Issue : VII, August - 2012 The Turbo Code and an Efficient Decoder Implementation using MAP Algorithm for Software Defined Radios Rupesh Singh and Nidhi Singh DOI : 10.9780/22307850, Published By : Laxmi Book Publication Abstract : This paper provides a description of the turbo code used by the UMTS third-generation
cellular standard, as standardized by the Third-Generation Partnership Project
(3GPP), and proposes an efficient decoder suitable for insertion into software-defined
radio or for use in computer simulations. Because the decoder is implemented in
software, rather than hardware, singleprecision floating-point arithmetic is assumed
and a variable number of decoder iterations is not only possible but desirable. The wellknown
log-MAP decoding algorithm with detailed analysis is proposed and the
simulation results are shown. Keywords : Article : Cite This Article : Rupesh Singh and Nidhi Singh, (2012). The Turbo Code and an Efficient Decoder Implementation using MAP Algorithm for Software Defined Radios. Indian Streams Research Journal, Vol. II, Issue. VII, DOI : 10.9780/22307850, http://oldisrj.lbp.world/UploadedData/1270.pdf References : - SHANNON, C. E.: 'A mathematical theory of communication', Bell Syst. Tech. J., July and October 1948, 27, pp.379–423 and 623–656.
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