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MECCAS: Collaborative Storage Algorithm Based on Alternating Direction Method of Multipliers on Mobile Edge Cloud

The commonly existing employed centralized algorithms fail to be adaptive to the new storage pattern on mobile edge cloud. To address this issue, we propose an alternating-direction-method-of-multipliers-based collaborative storage algorithm called MECCAS (Mobile Edge Cloud Collaborative Storage). The proposed MECCAS is able to minimize the delay of task execution and total costs for the overall operation, and meanwhile maximize the utilization of local information of nodes and system reliability. Nodes on mobile edge cloud storage are capable of adaptively allocating resources for storage to increase power usage effectiveness and reduce the risk of nodes withdrawal. Extensive experiments demonstrate the superiority of our MECCAS algorithm compared with other three baselines, i.e., ADM, RDM and ERASURE. The optimization utility of our algorithm is higher than other three algorithms by 41.72%, 44.52% and 22.94% on average, respectively