TY - GEN
T1 - Fast simulation of turbo codes over AWGN channels
AU - Gunawardana, Upul
AU - Nguyen, Kim Chi
AU - Liyana-Pathirana, Ranjith
PY - 2007
Y1 - 2007
N2 - In this paper, we illustrate the use of importance sampling (IS) for efficient simulation of Turbo Codes over additive white Gaussian noise (AWGN) channels. In particular, we show how to bias the probability density function (pdf) of the AWGN process using the most probable error path (MPEP) method in order to maximize the computational efficiency gain. The new noise pdf is designed based on the optimal biased distribution where zero variance estimator can be achieved. It is demonstrated that the proposed method requires much smaller sample sizes to achieve the same accuracy required by a conventional MC estimator.
AB - In this paper, we illustrate the use of importance sampling (IS) for efficient simulation of Turbo Codes over additive white Gaussian noise (AWGN) channels. In particular, we show how to bias the probability density function (pdf) of the AWGN process using the most probable error path (MPEP) method in order to maximize the computational efficiency gain. The new noise pdf is designed based on the optimal biased distribution where zero variance estimator can be achieved. It is demonstrated that the proposed method requires much smaller sample sizes to achieve the same accuracy required by a conventional MC estimator.
UR - http://www.scopus.com/inward/record.url?scp=46749094707&partnerID=8YFLogxK
U2 - 10.1109/ISCIT.2007.4392195
DO - 10.1109/ISCIT.2007.4392195
M3 - Conference Paper
AN - SCOPUS:46749094707
SN - 1424409772
SN - 9781424409778
T3 - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
SP - 1176
EP - 1181
BT - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
T2 - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies
Y2 - 16 October 2007 through 19 October 2007
ER -