A wireless sensor network (WSN) is a deployment of several small-sized chips called nodes, equipped with sensors to monitor physical or environmental conditions, such as temperature, sound, and pressure, and then cooperatively send back their data through the network to a central location for processing. WSNs are emerging rapidly and have a vast field of research. WSNs are cheap, smaller in size, and have intelligent nodes; due to these characteristics, a number of emerging technologies are based on them. These emerging technologies include the Internet of Things (IoT), cognitive radio sensor networks, cloud computing, cyber physical systems, smart grid, and vehicular ad hoc sensor networks. To the best of our knowledge, no work has been done in the literature so far to combine all these emerging technologies in a single source. In this chapter, our goal is to combine WSN-based emerging technologies as a single source so that reviewers can form opinions regarding these technologies.