Title :
On the robustness of turbo decoders
Author :
Huang, Xiaoling ; Phamdo, Nam
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Stony Brook, NY, USA
Abstract :
This paper investigates the sensitivity of turbo decoder performance to mismatch of the noise distribution and proposes a simple on-line procedure for estimating the unknown noise distribution from each block of received signal. For Gaussian and Laplacian noise, the proposed procedure leads to decoder performances which are comparable (within 0.1 dB) to the case where the noise distribution is known exactly
Keywords :
Gaussian noise; decoding; parameter estimation; turbo codes; Gaussian noise; Laplacian noise; decoder performance; noise distribution; robustness; sensitivity; simple on-line procedure; turbo decoders; unknown noise distribution estimation; Additive white noise; Bit error rate; Decoding; Gaussian distribution; Gaussian noise; Histograms; Quantization; Robustness; Signal to noise ratio; Turbo codes;
Conference_Titel :
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-5000-6
DOI :
10.1109/ISIT.1998.708740
