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Articles by A. Seddiki
Total Records ( 2 ) for A. Seddiki
  A. Seddiki , A. Djebbari , J.M. Rouvaen and A. Taleb-Ahmed
  In this study, we evaluate the performance of BCH (Bose-Chaudhuri-Hocquenghem) correcting codes when used to protect data over a land mobile channel using OFDM (Orthogonal Frequency Division Multiplexing) modulation. To deal with memory channels, the Gilbert-Elliott (GE) model was considered to simulate a Rayleigh fading channel and BCH codes to analyse the error process. Relating GE parameters to the physical quantities determining the fading statistics, we simulated the effect of introducing OFDM parameters with respect to the parameters of the channel error probability function (e.g., mobile speed, modulation type, delay constraint and parameters of error correcting codes). Simulation results using OFDM-BPSK modulation shows, for different BCH codes, significant performance.
  A. Seddiki , M. Djebbouri and A. Taleb-Ahmed
  In this study, we investigate the potential of some of the well know linear block codes in reducing the peak-to-average power ratio (PAPR). The influence of combined weighting and product block coding on the PAPR is investigated. A class of constructed product block codes based on BCH block codes capable of both error correction and PAPR reduction together with several weighting functions is considered. We investigate the interplay of various weighting functions with product codes in order to minimize PAPR. Proposed scheme reduce PAPR significantly as is evident from the simulation results.
 
 
 
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