Protocol Jamming

This paper explores the feasibility of using a protocol (adaptive or randomized) to govern the process of selecting a data rate for a two-rate communication system, subject to jamming. Two quantities, average efficiency for independent jamming and worst case efficiency for intelligent jamming, are defined as performance measures of an adaptive protocol. A particular fatal property, called zero looping, of an adaptive protocol is discussed. One simple method for eliminating zero loops of adaptive protocols is given. Under a certain jamming strategy constraints, the average throughput of a randomized protocol as well as the average efficiency of an adaptive protocol are computed and compared.