Cloud computing: networking and communication challenges

Over the past few years, cloud computing has rapidly emerged as a widely accepted computing paradigm built around core concepts such as on-demand computing resources, elastic scaling, elimination of up-front capital and operational expenses, and establishing a pay-as-you-go business model for computing and information technology services. With the widespread adoption of virtualization, service oriented architectures, and utility computing there has been a significant development in the creation of cloud support structures to deliver IT services within QoS bounds, service level agreements, and security and privacy requirements.