Pricing Policy for Registration Service

Considering the energy efficiency and the registration service in the cloud computing systems, in this chapter, we propose a sleep-mode based cloud architecture, in which free service and optional registration service are provided on the same server. Regarding the free service as the first essential service, the registration service as the second optional service and the sleep state as the vacation, we build an asynchronous multiple-vacation queueing model with a second optional service. We derive performance measures of the system in terms of the energy saving rate of the system and the average latency of the anonymous users who select the registration service. Moreover, by constructing the individual benefit function and the social benefit function, and developing an improved Bat algorithm, we present a pricing policy with an appropriate registration fee to correspond the user behaviors of Nash equilibrium and social optimization.