This work is supported by the National Natural Science Foundation ofChina (No.61070157, No.61070213) and the National High Technology Research and Development Program of China (863 Program) (No.2008AA01A323, No.2009AA01A334).
Increasing operational complexity becomes the major technical challenge for practically deploying and managing mechanisms to guarantee acceptable real-time SLAs. This paper exploits a cost-effective coordinated approa...