Undoubtedly Next-Generation Networks (NGNs) are a key ingredient for the success of any smart environments. In the increasingly connected world, there are multiple kinds of technologies-inspired smart environments (smart homes, hotels, hospitals, etc.) getting implemented and sustained nowadays. Due to a series of innovations and improvisations in the networking field, the authors these days hear, read and sometimes feel the network-induced smartness being seamlessly ingrained in their personal as well as professional environments. With the pervasiveness of networks, there are a variety of research problems and collaborative endeavors accelerated in different subtopics under the network topic.