Tust and reputation for mobile cloud system

1. building 3-Tier Cloud-Cloudlet-Device Architecture 2. Imposing five types of threat models: - Self-promoting attacks. - Bad-mouthing attacks - Ballot-stuffing attacks: - Discriminatory attacks. - Opportunistic service attacks. 3. Applying trust and reputation system with following considerations: - Recommendation Filtering Based on Social Similarity(Friendship, Social Contact, Community of Interest (CoI)) - Direct trust calculation by adopting The beta reputation system. 4. Environment Setup and performance - Parameters for performance evaluation(accuracy, resiliency,and convergence). - Data set from reference (Data set will be provided). 5. Empirical demonstration of smart city as case studies.