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    Enabling Green Computing in Cloud Environments: Network Virtualization Approach Towards 5G Support

    Verma, Jitendra Kumar, Kumar, Sushil, Kaiwartya, Omprakash, Cao, Yue, Lloret, Jamie, Katti, CP and Kharel, R ORCID logoORCID: https://orcid.org/0000-0002-8632-7439 (2018) Enabling Green Computing in Cloud Environments: Network Virtualization Approach Towards 5G Support. Transactions on Emerging Telecommunications Technologies, 29 (11). ISSN 2161-3915

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    Virtualization technology has revolutionized the mobile network and widely used in 5G innovation. It is a way of computing that allows dynamic leasing of server capabilities in the form of services like SaaS, PaaS, and IaaS. The proliferation of these services among the users led to the establishment of large-scale cloud data centers that consume an enormous amount of electrical energy and results into high metered bill cost and carbon footprint. In this paper, we propose three heuristic models namely Median Migration Time (MeMT), Smallest Void Detection (SVD) and Maximum Fill (MF) that can reduce energy consumption with minimal variation in SLAs negotiated. Specifically, we derive the cost of running cloud data center, cost optimization problem and resource utilization optimization problem. Power consumption model is developed for cloud computing environment focusing on liner relationship between power consumption and resource utilization. A virtual machine migration technique is considered focusing on synchronization oriented shorter stop-and-copy phase. The complete operational steps as algorithms are developed for energy aware heuristic models including MeMT, SVD and MF. To evaluate proposed heuristic models, we conduct experimentations using PlanetLab server data often ten days and synthetic workload data collected randomly from the similar number of VMs employed in PlanetLab Servers. Through evaluation process, we deduce that proposed approaches can significantly reduce the energy consumption, total VM migration, and host shutdown while maintaining the high system performance.

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