Turbo code design for H-ARQ with cross-packet channel coding

In wireless scenarios a simple and effective method to increase the reliability for time-varying channels is the hybrid automatic repeat request (H-ARQ) protocol. Recently, a H-ARQ scheme with cross-packet channel coding (CPC) has been proposed to increase the maximum coding rate at which full-diversity can be achieved. In this paper, CPC based on turbo codes is analyzed with EXIT charts. This allows to find a suitable CPC design. Simulation results show that the designed code outperforms the previous approach, providing full-diversity and good coding gain also at high coding rates.