Turbo encoder and related methods

Abstract

A turbo encoder comprising multiple interleaved parallel concatenated recursive systematic convolutional encoder wherein each recursive systematic convolutional encoder is provided with an LUT that simultaneously provides the output bit pattern as well as the next state value corresponding to a defined set of multiple input bits and present state for operating said recursive systematic convolutional encoder. Thus the approach works with improved LUTs, which do the job of both puncturing and multiplexing for four input bits at a time. Theoretically the proposed approach works almost four times faster than the conventional approach, which can handle only one input bit at a time.

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