A hybrid ARQ type‐II turbo‐coding arrangement and its frame error rate performance

A modified hybrid ARQ type‐II retransmission technique is presented. In this scheme, only the originally punctured bits are transmitted instead of full retransmission, if necessary. Compared to Narayanan's retransmission scheme, the structure of the modified turbo encoder and decoder is simpler. Simulation results demonstrated that a frame error rate reduction can be obtained. At the same time, the effective code rate remained relatively high.