Study On Teh Model Of Combinatorial Double Auction For The Cloud Computing Services And Products

Cloud computing is a calculation model, which provides dynamic scalable virtual resources by the Internet as a service way. With more and more large-scale IT enterprises start to provide cloud computing services. Thus, how to efficiently complete the cloud computing service trade and give a proper price strategy becomes a problem urgently to be solved.Based on considering the characteristics of cloud computing market, this paper introduces the economic mode into the cloud computing service trade, and then studies the double auction pricing model and the combinatorial auction pricing model which are both the economic model. Study finds that there is a certain defect in this two auction model in computing. So in view of the above question, this paper presents an idea about combinatorial double auction pricing model in cloud computing service so that we can efficiently match the cloud computing service trade and conclude a proper pricing strategy to improve the utility of both sides of the transaction. This paper’s main research content and innovation are as follows:First of all, this paper qualitatively analyzes the cloud computing market’s characteristics, and points out that both sides of the transaction make deals against many kinds of cloud services products and hope their maximum benefit in the current computing environment where there are many kinds of cloudy resources and many users; In addition, because of their private information asymmetry, it is difficult to completely acquire both sides of the transaction’s valuation and bidding which changes along with the changes in the external environment. Based on this, this paper introduces the economic model to analysis, focuses on how the auction model applies to the cloud service trade and pricing.Secondly, based on the research about the current cloud computing market’s characteristics, this paper mainly analyzes the double auction pricing model and the combinatorial auction pricing model in the cloud computing service and the defects of them. Study finds that although the double auction pricing model eliminate the monopoly in trade, but the model is only suitable for single cloud service trade, and cannot solve low efficiency of transactions when a variety of service trade at the same time. In addition, the combinatorial auction pricing model can do a deal at combined bid of many kinds of cloud services at the same time and ensure a higher rate of transactions, but the model only pursue the provider’s maximum benefit. Therefore, this paper sets up a combinatorial double auction trade model CDATM in the cloud computing service, and correspondingly proposes a combinatorial double auction algorithm based on average price of the cloud service combination. Finally, this paper verifies the effectiveness of the algorithm through the model simulation and analyzing the utility of both sides of the transaction, transaction rate, price stability and relationship between supply and demand.At the last, with verifying the effectiveness of the combinatorial double auction algorithm based on average price of the cloud service combination in CDATM, this paper discovers that it may produce the wrong incentives to the trade when the unit price difference between all kinds of the cloud service is very big. According to its defects, this paper established an advanced combinatorial double auction trade model SP-CDATM, and also put forward a combinatorial double auction algorithm based on the each price of the cloud service. Finally, through a comparative analysis of the simulation, the result shows us that this algorithm is superior in the utility and transaction rate aspects and can form the correct incentive even though the unit price difference between all kinds of the cloud service is big.