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Code covered by the BSD License

1.0

1.0 | 1 rating Rate this file 23 Downloads (last 30 days) File Size: 5.13 KB File ID: #24848

Log MAP decoder

24 Jul 2009 (Updated 20 Aug 2009)

Log MAP decoder for feedforward & feedback convolutional codes

File Information
Description	1> Log MAP decoder for RSC and NSC convolutional codes 2> Based on Lalit Bahl's original BCJR algorithm and its logarithmic version (Hanzo & Woodard). 3> Test-bench code is also included. 4> * PLEASE SUBMIT A RATING *. Email me with any Qs
MATLAB release	MATLAB 7.3 (R2006b)
Other requirements	Windows OR Linux, C/C++ compiler NOT required, non-commercial use, 1 Gigabyte memory

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Everyone's Tags	communications, convolutional decoder(2), map decoder(2), turbo codes(4)
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Comments and Ratings (1)
26 Aug 2009	Bogdan Cristea	- This implementation is not well suited for turbo decoding since the function input is the channel output. I would suggest to modify the function inputs in order to accept directly some LLRs. Thus the last parameters, Lc, shall be no longer needed. - I would like to have an option for using terminated or unterminated trellis - The code also should be cleaned

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20 Aug 2009	Request for comments, questions, rating