Energy-Efficient Cloud Computing
   Energy efficiency is increasingly important for future ICT
   Rapid  growth  of  the  demand  for  computational  power  has  led  to  the 
     creation of large-scale data centers
   Energy savings are achieved by continuous consolidation of VMs
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   Energy distribution in the data centre [1]
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     Introduction 
    Elastic characteristic of Clouds
    In 2006 the cost of energy consumption by IT infrastructures in US was 
     estimated as 4.5 billion dollars and it is likely to double by 2011
    Virtualization technology allows :
     create several Virtual Machines on a physical server 
     improved fault and performance isolation
     using live or off-line migration
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   Vision and Potential of Cloud Computing
   Computer networks grow up and 
     become  sophisticated!
   Computing utilities based on a 
     service  provisioning model
   Users can access applications as services 
     from anywhere in the world on demand
   Our Contributions to minimize the energy consumption
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   Open Challenges 
   Ability to transfer VMs between physical nodes using live migration
   Energy-aware Dynamic Resource Allocation
   QoS-based Resource Selection and Provisioning
   Optimization of Virtual Network Topologies
   Autonomic Optimization
   Efficient Consolidation of VMs
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