Design and implementation of Turbo Decoder for IEEE-802.16e and LTE standards

Convolutional Turbo encoding is employed for channel coding in most modern communication standards. It has been shown to provide better bit error rate performance than convolutional encoding but this increase in performance comes at a considerable cost in implementation complexity to achieve required decoding throughput. Convolutional Turbo codes (CTC) are constructed by a parallel concatenation of two or more component codes. The component encoders operate on the interleaved versions of the same data and reduce the channel fading effects by making the encoded data sequences independent of each other. The IEEE-802.16e (WiMax) standard defines