Performance of Reed-Solomon codes for hybrid-ARQ over Rayleigh fading channels under imperfect interleaving

We present a new method to analyze the performance of Reed-Solomon codes fo r hybrid automatic-repeat-request (ARQ)over Rayleigh fading channels with i mperfect interleaving. Using the asymptotic results of level crossings of t he faded envelope, we characterize the packet-error probability as a functi on of the Doppler frequency and mean signal-to-noise ratio. We then use the nation of equivalent Doppler frequency to include the effect of imperfect interleaving on performance. This approach allows us to directly evaluate t he throughput of hybrid-ARQ schemes and also specify minimum interleaving d epths for achieving optimum throughput on correlated Rayleigh channels.