Title :
Decreasing of the turbo MAP decoding time using an iterations stopping criterion
Author :
Trifina, Lucian ; Balta, H.G. ; Rusinaru, A.
Author_Institution :
Electron. & Telecommun. Fac., Iasi, Romania
Abstract :
In this paper, an iterations stopping criterion in iterative turbo decoding based on the LLR of the decoded bit, using a comparison with a threshold, is proposed. We present the performances of a turbo code, both in the case of a fixed number of iterations and in the case in which the stopping criterion is used. We compare the decoding times. An analysis of the influence of the threshold on the turbo code bit error rate (BER) performance, using the iterations stopping criterion, is presented.
Keywords :
error statistics; iterative decoding; maximum likelihood decoding; turbo codes; BER performance; MAP decoder; bit error rate performance; iteration stopping criterion; iterative turbo decoding; log likelihood ratio; turbo MAP decoding time; turbo code performance; AWGN channels; Additive white noise; Binary phase shift keying; Bit error rate; Gaussian noise; Iterative decoding; Modulation coding; Performance analysis; Random variables; Turbo codes;
Conference_Titel :
Signals, Circuits and Systems, 2005. ISSCS 2005. International Symposium on
Print_ISBN :
0-7803-9029-6
DOI :
10.1109/ISSCS.2005.1509933
