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* '''Architectural issues: '''A reference architecture for heterogeneous MCC environment is a crucial requirement for unleashing the power of mobile computing towards unrestricted ubiquitous computing.
* '''Energy-efficient transmission: '''MCC requires frequent transmissions between cloud platform and mobile devices, due to the stochastic nature of wireless networks, the transmission protocol should be carefully designed.<ref>Peng Shu, Fangming Liu, Hai Jin, Min Chen, Feng Wen, Yupeng Qu, Bo Li, "[http://grid.hust.edu.cn/fmliu/infocom-etime.pdf eTime: Energy-Efficient Transmission between Cloud and Mobile Devices]", in Proc. of ''IEEE INFOCOM'' (Mini-conference), Italy, April, 2013.</ref><ref>Fangming Liu, Peng Shu, "[http://committees.comsoc.org/mmc/e-news/E-Letter-January13.pdf eTime: Energy-Efficient Mobile Cloud Computing for Rich-Media Applications]", ''IEEE COMSOC MMTC'' E-Letter (IEEE Communications Society, Multimedia Communications Technical Committee), vol. 8, no. 1, January 2013.</ref>
* '''[[context awareness|Context-awareness]] issues: '''Context-aware and socially-aware computing are inseparable traits of contemporary handheld computers. To achieve the vision of mobile computing among heterogeneous converged networks and computing devices, designing resource-efficient environment-aware applications is an essential need.
* '''Live VM migration issues: '''Executing resource-intensive mobile application via Virtual Machine (VM) migration-based application offloading involves encapsulation of application in VM instance and migrating it to the cloud, which is a challenging task due to additional overhead of deploying and managing VM on mobile devices.
* '''Mobile communication congestion issues: '''Mobile data traffic is tremendously hiking by ever increasing mobile user demands for exploiting cloud resources which impact on mobile network operators and demand future efforts to enable smooth communication between mobile and cloud endpoints.
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