Average age of coupon type and related average age of information
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We consider two types of problems associated with a bufferless server with service preemption (push-out). One type is motivated by "adversarial" coupon collection with applications to modeling the surveillance of a set of servers by a botnet planning a DDoS attack on them collectively. The servers dynamically change according to a moving-target defense. Another type of problem has to do with a sequence of messages handled by the (transmission) server wherein each message obsoletes all previous ones. The objective is to assess the freshness of the latest message/information that has been successfully transmitted, i.e., "age of information".
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