Section 1. Data connectivity. Chapter 1. An efficient policy for vertical-handover-based multi-attribute utility theory in heterogeneous wireless networks ; Chapter 2. A demand model for mobile data traffic in the 5G era: case of Finland -- Section 2. Cloud computing. Chapter 3. Performance evaluation of energy-aware virtual machine placement techniques for cloud environment ; Chapter 4. A dynamic resource provisioning VNE algorithm based on graph theory ; Chapter 5. A cost-effective cloud strategy for small and medium enterprises (SMEs): transforming business with Amazon's EC2 spot instances -- Section 3. Wireless sensor networks and Internet of things. Chapter 6. Wireless mesh communication technologies and protocols for a full-view camera sensor network used in maritime surveillance ; Chapter 7. Effective routing in mobile ad-hoc networks with power and end-to-end delay optimization: well matched with modern digital IoT technology -- Section 4. Business applications of data communication and networking. Chapter 8. The collaborative use of patients' health-related information: challenges and research problems in a networked world ; Chapter 9. Corporate social responsibility communication research: state of the art and recent advances.