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A trellis-coded 8-ary PSK system with slow frequency hopping, pilot symbol aided and small-sized interleaving techniques for land mobile communications is proposed. The bit error rate (BER) performance of the system in the presence of additive white Gaussian noise (AWGN), cochannel interference (CCI) and slow Rayleigh fading are evaluated by computer simulation. It is shown that the proposed system...
An alternative technique due to Welch and Berlekamp (1983) for decoding Reed-Solomon codes has a key equation different in form from the key equation solved by the conventional Berlekamp-Massey algorithm or by the so-called Euclidean algorithm. The authors present an algorithm for solving the key equation which has a simple structure and which is readily shown to work.<<ETX>>
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