Title :
Evaluation of convolutional codes by error types simulation
Author :
Gadkari, Shrinivas ; Rose, Kenneth
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
Error types simulation (ETS)-a new method for performance evaluation of convolutional codes, is presented. The key idea is to consider types of channel error sequences separately and estimate the contribution of each type to the information bit error rate (I-BER). By averaging these contributions, weighted by the corresponding probability of occurrence of the type, we obtain the I-BER curve. We show that this approach yields an accurate estimate of the entire I-BER curve, while maintaining a computational complexity that is only a very small fraction of the complexity of a Monte-Carlo simulation for a single channel condition. The ETS is shown to outperform competing methods, in terms of both accuracy of the estimate, and the total computational complexity
Keywords :
Viterbi decoding; coding errors; computational complexity; convolutional codes; error statistics; probability; telecommunication channels; I-BER curve; Monte-Carlo simulation; Viterbi decoding; accurate estimate; channel error sequences; computational complexity; convolutional codes; error types simulation; information bit error rate; performance evaluation; probability; Bit error rate; Computational complexity; Computational modeling; Computer errors; Computer simulation; Convolutional codes; Decoding; Discrete event simulation; Speech; Viterbi algorithm;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.591991