@conference { ISI:000391420400025, title = {A cross-validation based semi-analytical performance evaluation for high order modulations}, booktitle = {2016 INTERNATIONAL CONFERENCE ON WIRELESS NETWORKS AND MOBILE COMMUNICATIONS (WINCOM)}, year = {2016}, note = {International Conference on Wireless Networks and Mobile Communications (WINCOM), Fez, MOROCCO, OCT 26-29, 2016}, pages = {P140-P145}, publisher = {Univ Sidi Mohamed Ben Abdellah; FST FES; MobiTic; IEEE; IEEE Commun Soc; FSDM; ENSIAS; FST Mohammedia; CLusMed; TICSM Res Pole; Master Tec; CNRST; EBSA Fez; Mobit Assoc}, organization = {Univ Sidi Mohamed Ben Abdellah; FST FES; MobiTic; IEEE; IEEE Commun Soc; FSDM; ENSIAS; FST Mohammedia; CLusMed; TICSM Res Pole; Master Tec; CNRST; EBSA Fez; Mobit Assoc}, abstract = {Higher order quadrature amplitude modulation (HOQAM) is one of the key technologies used in advanced mobile communication systems to achieve high data rates. However, in such systems, performance evaluation can be very complicated and time consuming due to the increase of constellation size. As a solution, a QAM scheme is seen as a combination of two pulse amplitude modulations (PAM). Nevertheless, the system remains complex especially with very high constellation sizes. Therefore, Monte-Carlo simulation method is impractical to obtain the expected system performance. In this paper, we propose a semi-analytical performance evaluation methodology for a PAM modulation. Our approach is based on the probability density estimation using kernel technique in joint application with cross-validation (CV) criterion. We derive both semi-analytical symbol error probability (SEP) and semi-analytical bit error probability (BEP) for several modulation schemes. Simulation results show that, in terms of SEP and BEP metrics, our technique is accurate compared with theoretical error probabilities.}, isbn = {978-1-5090-3837-4}, author = {Et-tolba, Mohamed and Ezzahra Naamane, Fatima and Saoudi, Samir}, editor = {ElKamili, M and Berrada, I and Badri, A and Ghennioui, H} } @article { ISI:000379488000001, title = {A semi-analytical performance prediction of a digital communication system using Fourier transform inversion}, journal = {EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING}, year = {2015}, month = {OCT 29}, abstract = {Analytical performance evaluation of a digital communication system remains a serious problem especially when a sophisticated digital signal processing is considered. Moreover, it is difficult to obtain the expected performance of such system using the Monte Carlo simulation method. In this paper, we propose a new semi-analytical approach for predicting error probability in a digital communication system. This approach is based on Fourier transform inversion formula to estimate the probability density function (pdf) of the observed soft sample at the receiver. Furthermore, we applied a bootstrap method for selecting the optimal smoothing parameter to make the proposed semi-analytical method more accurate. Simulation results show that the obtained semi-analytical error probability is close to the one measured using Monte Carlo simulation and provides a significant gain in terms of computing time. Besides, the use of the bootstrap method decreases the squared error between the true pdf and the estimated one.}, issn = {1687-1499}, doi = {10.1186/s13638-015-0467-2}, author = {Ezzahra Naamane, Fatima and Et-tolba, Mohamed and Belkasmi, Mostafa} } @conference { ISI:000364216300015, title = {Fast Performance Prediction Method for QPSK Modulation}, booktitle = {2014 International Conference on Communications and Networking (ComNet)}, series = {International Conference on Communications and Networking}, year = {2014}, note = {4th International Conference on Communications and Networking (ComNet), Hammamet, TUNISIA, MAR 19-22, 2014}, publisher = {IEEE; SUPCOM; MEDIATRON; TUNISIE TELECOM; Microsoft Tunisia; Ecole Doctorale Technol Informat COmmun; Instance Natl Telecommunicat}, organization = {IEEE; SUPCOM; MEDIATRON; TUNISIE TELECOM; Microsoft Tunisia; Ecole Doctorale Technol Informat COmmun; Instance Natl Telecommunicat}, abstract = {Quadrature phase shift keying (QPSK) is one of modulation schemes used in advanced wireless communication systems. It is known to be robust against the channel impairement. However, when it is used with sophisticated signal processing, it makes Monte Carlo simulation method time consumming. In this paper, we propose a semi-analytical prediction method which provides a significant gain in term of computing time.}, isbn = {978-1-4799-3764-6}, issn = {2163-663X}, author = {Et-tolba, Mohamed and Ezzahra Naamane, Fatima and Belkasmi, Mostafa} }