The performance analysis of a concatenated ARQ scheme using parity retransmissions

This paper analyzes an ARQ scheme using parity retransmissions. By dividing each transmission block into sub­ blocks, the combination of a transmission block and its retrans­ mission block has the structure of a concatenated code. We derive formulae for calculating an upper bound on the probability of undetected errors and a lower bound on the throughput for such an ARQ scheme. Numerical results show that even with extremely simple iuner code design, such an ARQ scheme has satisfactory performauce.