Publications (115)
ARTICLE
Three Thresholds for the Efficiency in Energy Management in WSN
Yacouba Ouattara, Christophe Lang, and Adel Elgaber
Nowadays, the domain of sensor networks constitutes a very active research field. People are using a lot of
low cost networks. As a result, they are facing an important energy management problem. Consequently, Researchers have tried to ensure long life to networks [1]-[8]. LEACH, PEGASUS, TEEN and APTEEN are pioneers in the reduction of WSN e(...)
Wirless, WSN
ARTICLE
Domain matters : bringing further evidence of the relationships among anti-patterns, application domains, and quality-related metrics in Java mobile apps.
Mario Linares Vasquez, Sam Klock, Collin McMillan, Aminata Sabane, Denys Poshyvanyk, Yann-Gael Gueheneuc
Some previous work began studying the relationship between application domains and quality, in particular through the prevalence of code and design smells (e.g., anti-patterns). Indeed, it is generally believed that the presence of these smells degrades quality but also that their prevalence varies across domains. Though anecdotal experiences(...)
Mots clés non renseignés
ARTICLE
Performances of neural networks and LDPC decoders for OFDM high speed transmission in optical fiber
Serge Roland Sanou, François Zougmoré, Marcel Kebré, Zacharie Koalaga, Ali Doumounia
This paper presents a comparison of the performances of coded OFDM (Orthogonal Frequency Division Multiplexing) for optical broadband transmission using Random Neural Network (RNN), a variant of RNN, Soft Decision Decoding (SDD) and LDPC channel decoding techniques. The performance evaluation is based firstly on the Error Vector Magnitude (EVM(...)
OFDM, BER, EVM, Optical fiber, Decoder, Neural network, SDD, LDPC
ARTICLE
BER reduction for mQAM high-speed transmission in optical fiber networks using convolutional, BCH, RS and LDPC error correcting codes
S. R. Sanou, F. Zougmore, Z. Koalaga, M. Kebré
A comparative study of digital m-ary Quadrature Amplitude Modulation (mQAM) channel coding signals for optical high-speed transmission is presented in this article. The needs to transmit information at high speed are topical and relevant to the images, the sounds, and data of any kind, etc. The photonic networks are the subject of much researc(...)
mQAM, broadband, BER, optical fiber
ARTICLE
A Study on the relation between antipatterns and the cost of class unit testing
Aminata Sabané, Massimiliano Di Penta, Giuliano Antoniol, Yann-Gael Gu_eh_eneuc.
Antipatterns are known as recurring, poor design choices, recent and past studies indicated that they negatively affect software systems in terms of understand ability and maintainability, also increasing change-and defect-proneness. For this reason, refactoring actions are often suggested. In this paper, we investigate a different side-effect(...)
Mots clés non renseignés
ARTICLE
A SVM-based incremental anti-pattern detection approach.
Abdou Maiga, Nasir Ali, Neelesh Bhattacharya, Aminata Saban_e, Yann-Gael Gueheneuc, Giuliano Antoniol, Esma Ameur. SMURF
In current, typical software development projects, hundreds of developers work asynchronously in space and time and may introduce anti-patterns in their software systems because of time pressure, lack of understanding, communication, and-or skills. Anti-patterns impede development and maintenance activities by making the source code more diffi(...)
Mots clés non renseignés
ARTICLE
Support vector machines for anti-pattern detection
Abdou Maiga, Nasir Ali, Neelesh Bhattacharya, Aminata Saban_e, Yann-Gael Gu_eh_eneuc, Giuliano Antoniol, Esma A_meur
Developers may introduce anti-patterns in their software systems because of time pressure, lack of understanding, communication, and--or skills. Anti-patterns impede development and maintenance activities by making the source code more difficult to understand. Detecting anti-patterns in a whole software system may be infeasible because of the(...)
Mots clés non renseignés
ARTICLE
OFDM codé pour le haut débit en fibre optique avec les codes correcteurs convolutifs, BCH, RS et LDPC
Serge Roland SANOU, François ZOUGMORE, Zacharie KOALAGA, Marcel KEBRE
Ce document présente une comparaison des performances des modulations OFDM (Orthogonal Frequency Division Multiplexing) codées pour la transmission optique haut débit à l’aide des techniques de codage canal convolutif, BCH, LDPC et Reed Solomon. L’évaluation des performances se base d’une part sur l’EVM (Error Vector Magnitude) afin d’apprécie(...)
OFDM, haut débit, BER, fibre optique
ARTICLE
Improving bug location using binary class relationships
Nasir Ali, Aminata Saban_e, Yann-Gael Gueheneuc, Giuliano Antoniol
Bug location assists developers in locating culprit source code that must be modified to fix a bug. Done manually, it requires intensive search activities with unpredictable costs of effort and time. Information retrieval (IR) techniques have been proven useful to speedup bug location in object-oriented programs. IR techniques compute the text(...)
Mots clés non renseignés
ARTICLE
PAPR Distribution Analysis at the Output of Nonlinear PAPR Reducers
Désiré GUEL, Jacques PALICOT
Nonlinear PAPR reducers, such as clipping and companding techniques, are some simple methods used to reduce the Peak-to-Average Power Ratio (PAPR). In this paper, assuming that the baseband OFDM signal is characterized as a band-limited complex Gaussian process, we investigate the PAPR distribution of an OFDM signal when it is passed through a(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Distribution, Nonlinear PAPR Reducers
ARTICLE
Transformation of any Adding Signal Technique in Tone Reservation Technique for PAPR Mitigation thanks to Frequency Domain Filtering
Désiré GUEL, Jacques PALICOT
Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Tone Reservation (TR) is a popular PAPR reduction technique that uses a set of reserved subcarriers to carry the peak reducing signal. The major advantages of TR technique include no transmission performance degradation, no transmission of(...)
Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Frequency Domain Filtering, Clipping Techniques
ARTICLE
Improving system testability and testing with microarchitectures
Aminata Sabane
Testing is essential to ensure software reliability and dependability. however, testing activities are very expensive and complex. Micro architectures, such as design patterns and anti-patterns, widely exist in object oriented systems and are recognized as influencing many software quality attributes. Our goal is to identify their impact on sy(...)
Mots clés non renseignés
ARTICLE
Tone reservation technique based on geometric method for orthogonal frequency division multiplexing peak to- average power ratio reduction
Désiré Guel, Jacques Palicot, Yves Louet
Orthogonal frequency division multiplexing (OFDM), has recently attracted considerable attention because of its features to combat delay spread or frequency selective fading of wireless or wireline channels. One of the major drawbacks of OFDM is the peak-to-average power ratio (PAPR) which leads to an inefficient use of high power amplifiers ((...)
Mots clés non renseignés
ARTICLE
Performance comparison of PRC based PAPR reduction schemes for WiLAN Systems
Hussain Sajjad, Guel Désiré, Louët Yves, Palicot Jacques
High Peak to Average Power Ratio (PAPR) is a main area of concern in multi-carrier communications as in Orthogonal Frequency Division Multiplexing (OFDM) modulated transmission. Several techniques have been devised to reduce the PAPR of the OFDM signal. One of these PAPR reduction techniques is based on Peak Reducing Carriers (PRC) concept whe(...)
Mots clés non renseignés
ARTICLE
FFT/IFFT Pair Based Digital Filtering for the Transformation of Adding Signal PAPR Reduction Techniques in Tone Reservation Techniques
Guel Désiré and Palicot Jacques
Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Tone Reservation (TR) is a popular PAPR reduction technique that uses a set of reserved subcarriers to carry the peak reducing signal. The major advantages of TR technique include no transmission performance degradation, no transmission of(...)
Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), FFT/IFFT pair Based Digital Filtering