Simulation for conventional ARQ and code combining ARQ in Rayleigh fading environment are corried out and the results indicate that code combining ARQ is a simple and efficient technique.

• 本文还仿真了在瑞利衰落环境采用传统ARQ和码组合ARQ技术时系统的性能，结果表明码组合ARQ为一种简单而有效的方法。