The Internet of Things (IoT) represents a comprehensive environment that consists of a large number of sensors and mediators interconnecting heterogeneous physical objects to the Internet. The research roadmap of IoT spans across vast domains such as mobile computing, wireless and sensor networks, service oriented computing, middleware, cloud computing and big data analytics, taking advantage of several recent breakthroughs in the respective domains. Primarily, the challenges associated with realization of IoT scenarios can be summarized across three layers: sensing and smart devices layer, connectivity layer and cloud layer. The first layer deals with the physical objects, including energy-efficient communication of the devices and developing the associated standards so that the interaction among the devices is seamless. The connectivity layer deals with the sensor data acquisition and provisioning, through gateways and sinks. The top cloud layer deals with resource provisioning for storage and distributed processing of the acquired data in extracting domain specific information. The participation of smart phones both as sensors and the gateways, brings in the scope for mobile web services and mobile cloud services into this cloud-centric IoT (CIoT) architecture. Although the CIoT model is a common approach to implement IoT systems, it is facing issues such as latency and privacy, which lead to Fog computing. The guest lecture discusses CIoT in detail, along with its limitations leading to fog computing. Later, the presentation will summarize the latest research challenges and trends in the Fog computing domain. The guest lecture is concluded with a brief summary of cloud computing research performed at Mobile & Cloud Lab and planned collaboration activities with Argonne National Laboratory.

Bio: Satish Narayana Srirama is a Research Professor and the head of the Mobile & Cloud Lab at the Institute of Computer Science, University of Tartu, Estonia and a Visiting Professor at University of Hyderabad, India. He received his PhD in computer science from RWTH Aachen University, Germany. His current research focuses on cloud computing, mobile web services, mobile cloud, Internet of Things, fog computing, migrating scientific computing and enterprise applications to the cloud and large scale data analytics on the cloud. He is an IEEE Senior Member, an Editor of Wiley Software: Practice and Experience, a 49 year old Journal, was an Associate Editor of IEEE Transactions in Cloud Computing and a program committee member of several international conferences and workshops. Dr. Srirama has co-authored over 135 refereed scientific publications in international conferences and journals. Dr. Srirama has successfully managed several national, international and enterprise collaborative research grants and projects.