With the recent technological development, there is prevalent trend for smart infrastructure deployment with intention to provide smart services for inhabitants. City governments of current era are under huge pressure to facilitate their residents by offering state of the art services equipped with modern technology gadgets. To achieve this goal they have been forced for massive investment in IT infrastructure deployment, eventually they are collecting huge amount of data from users with intention of providing them better or improved services. These services are very exciting but on the other side they also pose a big threat to the privacy of individuals. This paper designed and simulated a smart city model. This model is connected with some mandatory communication devices which also produce data for different sensors, Based on simulation results and possible threats for alteration of this data, it suggests solution for privacy issues which are to be considered at top priority to ensure secrecy and privacy of smart city residents.

Internet of Things (IoT) essentially demands smart connectivity and contextual awareness of current networks with low power and cost effective wireless solutions. Routing is the backbone of the system controlling the flow of transmission. This work demonstrates a collation between performance investigations of a location-based routing protocol Geocast Adaptive Mesh Environment for Routing with contextual information collected from Global Positioning System (GPS) and Framework for Internal Navigation and Discovery (FIND) respectively. The systems are evaluated based on various metrics i.e. Accuracy, Packet Delivery Ratio and Packet Overhead by means of Network Simulator (NS-2). FIND shows enhanced performance in most cases as compared to GPS for indoor and outdoor environments. The results of this research can be deployed in different areas such as in-building navigation, hospital patient tracking, Smart City context aware service provisioning and Industry 4.0 deployments.

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The Blockchain enabled Internet of Things (IoTs) has emerged as an impactful research domain in recent years because of its focused global interest owing to the United Nations' commitment to achieve 17 Sustainable Development Goals by the year 2030. The Blockchain enabled IoTs has also received considerable attention from industry and academia due to