The availability of NFC capabilities on smartphones has facilitated the development of a large number of related applications. Some of these applications may be resourceintensive tasks; and Cloudlets-based mobile computing are a good candidate to offload computation while being free of WAN delays, jitter, congestion, and failures. In this context, new use cases dedicated to NFC applications based on cloudlets are presented and a security protocol is proposed to authenticate the cloudlets by the mobile devices. The secure element of the mobile device is a trust environment used to store sensitive data and to perform cryptographic calculations.
The growth of connected devices, mostly due to the large number of Internet of Things (IoT) deployments and the emergence of mobile Cloud services, introduces new challenges for the design of service architectures in Mobile Cloud Computing (MCC). An MCC framework should provide elasticity and scalability in a distributed and dynamic way while dealing with limited environment resources and variable mobile contexts (Web applications, realtime, enterprise services, mobile to mobile, hostile environment, etc.) that may include additional constraints impacting the design foundation of Cloud services. We show in this work how Service Oriented Architecture (SOA) can be a key solution to provide distributed mobile Cloud services and how OSGi platform can be an adaptive and efficient framework to provide such implementation. We adapt the proposed MCC framework to different architecture contexts. The first one is a traditional centric model, where mobile devices are reduced to consuming services. The second one is a distributed model where the power of mobile-tomobile interaction offers unlimited value-services opportunities, and finally three-tier architecture is considered with the introduction of the Cloudlet notion. For each context, we explore the performance of our service oriented framework, and contrast it with alternative existing solutions.
Mobile Cloud Computing (MCC) is an emerging and popular mobile technology which uses fully available Cloud Computing services and functionalities. This technology provides rich computational services to the users, network operators and Cloud service providers as well. However due to users mobility and high computational operations, consumption of energy is a major issue. Energy efficiency over MCC is needed since 57% of generated energy is used by ICT related devices and other negative impacts over environment. This paper investigates different mobile Cloud computing architectures and their performance over energy efficiency by examining different approaches: OSGi, overlay, and container based solutions.
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