Guaranteed Quality of Service on Profit Maximization with Cloud Service

Abstract

As an efficacious and efficient way to provide computing resources and accommodations to customers on demand, cloud computing has become more and more popular. From cloud accommodation providers’ perspective, profit is one of the most paramount considerations, and it is mainly determined by the configuration of a cloud accommodation platform under given market demand. However, a single long-term renting scheme is conventionally adopted to configure a cloud platform, which cannot guarantee the accommodation quality but leads to solemn resource waste.  A double resource renting scheme is designed firstly in which short-term renting and long-term renting are coalesced aiming at the subsisting issues. This double renting scheme can efficaciously guarantee the quality of accommodation of all requests and reduce the resource waste greatly. Secondly, an accommodation system is considered as an M/M/m+D queuing model and the performance designators that affect the profit of our double renting scheme are analyzed, e.g., the average charge, the ratio of requests that need transitory servers, and so forth. Thirdly, a profit maximization quandary is formulated for the double renting scheme and the optimized configuration of a cloud platform is obtained by solving the profit maximization quandary. [1] Conclusively, a series of calculations are conducted to compare the profit of our proposed scheme with that of the single renting scheme. The results show that our scheme can not only guarantee the accommodation quality of all requests, but withal obtain more profit than the latter.