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Item Virtual machine migration—a perspective study(Springer Verlag service@springer.de, 2018) Joseph, C.; Martin, J.P.; Chandrasekaran, K.; Kandasamy, A.The technology of Cloud computing has been ruling the IT world for the past few decades. One of the most notable tools that helped in prolonging the reign of Cloud computing is virtualization. While virtualization continues to be a boon for the Cloud technology, it is not short of its own pitfalls. One such pitfall results from the migration of virtual machines. Though migration incurs an overhead on the system, an efficient system cannot neglect migrating the virtual machines. This work attempts to carry out a perspective study on virtual machine migration. The various migration techniques proposed in the literature have been classified based on the aspects of migration that they consider. A survey of the various metrics that characterize the performance of a migration technique is also done. © 2018, Springer Nature Singapore Pte Ltd.Item Unraveling the challenges for the application of fog computing in different realms: A multifaceted study(Springer Verlag service@springer.de, 2019) Martin, J.P.; Kandasamy, A.; Chandrasekaran, K.Fog computing is an emerging paradigm that deals with distributing data and computation at intermediate layers between the cloud and the edge. Cloud computing was introduced to support the increasing computing requirements of users. Later, it was observed that end users experienced a delay involved in uploading the large amounts of data to the cloud for processing. Such a seemingly centralized approach did not provide a good user experience. To overcome this limitation, processing capability was incorporated in devices at the edge. This led to the rise of edge computing. This paradigm suffered because edge devices had limited capability in terms of computing resources and storage requirements. Relying on these edge devices alone was not sufficient. Thus, a paradigm was needed without the delay in uploading to the cloud and without the resource availability constraints. This is where fog computing came into existence. This abstract paradigm involves the establishment of fog nodes at different levels between the edge and the cloud. Fog nodes can be different entities, such as personal computers (PCs). There are different realms where fog computing may be applied, such as vehicular networks and the Internet of Things. In all realms, resource management decisions will vary based on the environmental conditions. This chapter attempts to classify the various approaches for managing resources in the fog environment based on their application realm, and to identify future research directions. © Springer Nature Singapore Pte Ltd. 2019.Item A comprehensive survey on federated cloud computing and its future research directions(Springer Science and Business Media Deutschland GmbH, 2021) Shishira, S.R.; Kandasamy, A.The cloud computing paradigm is popular due to its pay-as-you-go model. Due to its increasing demand for service, the user has a huge advantage in paying for the service currently needed. In a federated cloud environment, there is one or more number of cloud service providers who share their servers to service the user request. It improves minimizing cost, utilization of services and improves performance. Clients will get benefited as there is a Service Level Agreement between both. In the present paper, survey is provided on the benefits of the federated environment, its architecture, provision of resources and future research directions. Paper also gives the comparative study on the above aspects. © Springer Nature Singapore Pte Ltd 2021.Item Explicating fog computing key research challenges and solutions(CRC Press, 2021) Martin, J.P.; Singh, V.; Chandrasekaran, K.; Kandasamy, A.[No abstract available]