A city wide communication network, catering various applications, can be established using wireless sensor networks which collect data, process it and take relevant actions to provide solutions for smart city implementation. Challenges faced in a smart city network include variation in area covered by the network for different applications, non-uniform node distribution, increase in the number of messages passed, use of multiple communication technologies and also heterogeneity in nodes and messages. The various domains of smart city are studied and a few applications were implemented in each of them. The paper, through survey provides a summary of various sensor network solutions in smart city. The paper brings out challenges in message passing by considering applications like cab sharing, ambulance services and other emergency services of various domains that use real time traffic data service provided by smart traffic domain to navigate efficiently. Message passing for this service is simulated in ns2 using MANET routing protocols and their effectiveness is studied.
E. Jacob and Sivraj, P., “Performance analysis of MANET routing protocols in smart city message passing”, in 2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016.