Rate compatible raptor-like LDPC codes with partially decoder for green terrestrial broadcasting system

Abstract

In this paper, a partially decoding scheme, combined with the rate compatible Raptor-like low-density parity-check (LDPC) codes, is proposed to provide more robust, power saving solutions for the future terrestrial broadcasting systems. Different from the existing works, the proposed algorithm uses the least information in the codeword and stops immediately after the decoding is successful. We illustrate two different scenarios under which this scheme will be quite useful. Simulation results show that the proposed scheme is effective.