Effect of interference on throughput of adaptive hybrid ARQ protocol

The author analyzes the effect of unanticipated CW and pulsed interference on the throughput of an adaptive hybrid ARQ protocol used with a discrete-time Markovian channel. He evaluates the degradation in the performance of this protocol due to additional, unanticipated interference and shows that the protocol is only slightly suboptimal under these conditions, i.e. only a small part of the degradation can be attributed to the protocol´s reliance on incorrect channel statistics. He also shows that the performance of the adaptive protocol is at least as good as that of a simpler nonadaptive protocol over almost the entire range of jammer power levels