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As one of the candidates of cellular phone TV standard, the DAB-based CDMB adopts convolutional codes as its channel coding. In this article, we present a new sum-product decoding algorithm, where parity-check matrix is constructed under the circumstance that the sending encoder is unaltered or partially modified. It shows that our method obtain about 1dB gain higher than the traditional Viterbi algorithm...
With the development of information society and the improvement of people's needs, E-ticket is an inevitable trend, which means a common platform for online ticketing has become a priority. This paper presents an integrated ticketing system based on two-dimensional (2-D) barcode on mobile phone, using coding and decoding technology of 2-D code and MD5 Message Digest Algorithm. There are also presentations...
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