%0 Journal Article %A Ł. Kiedrowski and H. Gierszal and W. Hołubowicz %D 2010 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 42, 2010 %T H-ARQ Techniques for Wireless Systems with Punctured Non-Binary LDPC as FEC Code %U https://publications.waset.org/pdf/5228 %V 42 %X This paper presents the H-ARQ techniques comparison for OFDM systems with a new family of non-binary LDPC codes which has been developed within the EU FP7 DAVINCI project. The punctured NB-LDPC codes have been used in a simulated model of the transmission system. The link level performance has been evaluated in terms of spectral efficiency, codeword error rate and average number of retransmissions. The NB-LDPC codes can be easily and effective implemented with different methods of the retransmission needed if correct decoding of a codeword failed. Here the Optimal Symbol Selection method is proposed as a Chase Combining technique. %P 964 - 969