TY - GEN
T1 - Importance sampling applied to an optical DS-CDMA system
AU - Farhat, Amel
AU - Menif, Mourad
AU - Lepers, Catherine
AU - Rezig, Houria
AU - Gallion, Philippe
PY - 2007/12/1
Y1 - 2007/12/1
N2 - In this paper, we evaluate the performances of a Direct-Sequence Optical Code Division Multiple Access (DS-OCDMA) system. We estimate the bit error rate (BER) of the system using Importance Sampling (IS) technique by taking into account multiple access interferences (MAI) and noises from the receiver. Conventional Monte-Carlo method uses a great number of samples to derive BER evaluation but only a very small fraction of them contributes to error determination. By using IS method, we increase artificially the number of errors by biasing the input distribution, and therefore it is possible to reduce the number of simulations required for BER estimation. We validate the IS method and demonstrate a BER agreement between simulation results and experiments.
AB - In this paper, we evaluate the performances of a Direct-Sequence Optical Code Division Multiple Access (DS-OCDMA) system. We estimate the bit error rate (BER) of the system using Importance Sampling (IS) technique by taking into account multiple access interferences (MAI) and noises from the receiver. Conventional Monte-Carlo method uses a great number of samples to derive BER evaluation but only a very small fraction of them contributes to error determination. By using IS method, we increase artificially the number of errors by biasing the input distribution, and therefore it is possible to reduce the number of simulations required for BER estimation. We validate the IS method and demonstrate a BER agreement between simulation results and experiments.
U2 - 10.1109/ICECS.2007.4510924
DO - 10.1109/ICECS.2007.4510924
M3 - Conference contribution
AN - SCOPUS:50649106208
SN - 1424413788
SN - 9781424413782
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 34
EP - 37
BT - ICECS 2007 - 14th IEEE International Conference on Electronics, Circuits and Systems
T2 - 14th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2007
Y2 - 11 December 2007 through 14 December 2007
ER -