Design and implementation of concatenated encoder

Presented a concatenated encoder that has very wide applications in DVB, HDTV and satellite communication systems. It was mainly composed of punctured convolutional encoder, convolutional interleaver, and Reed-Solomon encoder. In the convolutional interleaver, an over-clocking scheme is employed to guarantee the speed limits. Furthermore, a finite field multiplier of composite fields was adapted to optimize area and power in RS encoder, which reduced the area near to one half compared to the conventional RS (204,188) encoder. The proposed concatenated encoder has about 3700 gates except RAM model and it has good compliance with EN300 421.