Security and privacy assessments are considered a best practice for evaluating a system or application for potential risks and exposures. Cloud computing introduces several characteristics that challenge the effectiveness of current assessment approaches. In particular, the on-demand, automated, multi-tenant nature of cloud computing is at odds with the static, human process-oriented nature of ...

Management of errors in multi-tenant cloud based applications remains a challenging problem. This problem is compounded due to (i) multiple versions of application serving different clients, (ii) agile nature in which the applications are released to the clients, and (iii) variations in specific usage patterns of each client. We propose a framework for isolating and managing errors in such appl...

We live in an age of information explosion, driven by technology that has progressed from monolithic mainframes, to distributed computing, to on-premises and hybrid distributing computing, and towards multi-tenant cloud environments. Further, a new paradigm has emerged where connectivity has a multitude of channels – mobile, tablets, sensors and monitors – that yield an abundance of data and in...

Data center is the infrastructure of supporting Internet service. Cloud computing is rapidly changing the face of Web Internet service infrastructure, enabling even small organizations to quickly create Web and mobile applications for millions of users by taking advantage of the scale and flexibility of the shared physical infrastructures provided by cloud providers. In this scenario, multiple ...

The Fifth-Generation (5G) mobile networks leverage virtualisation and softwarisation to reduce both capital operating expenditures whilst benefiting from network programmability flexibility for various use cases. Meanwhile, introduce unprecedented complexity infrastructure topologies, which poses substantial challenges topology management. This paper proposes a novel architecture enable adminis...

Since energy has emerging as the first class computing resource, we need to characterize this resource in different granularity. On the other hand, the computing paradigm is shifting to the multi-tenant ecosystems. Therefore, characterizing the power consumption on Virtual Machines(VMs), running in data center hosts is necessary to attain energy efficient cloud ecosystems. In this paper, we stu...