Editorial: Second Quarter 2016 IEEE Communications Surveys and Tutorials

I welcome you to the second issue of IEEE Communications Surveys and Tutorials (ComST) in 2016. This issue includes 25 articles covering different aspects of communication networks. In particular, these articles cover various issues in “Wireless Communications, Networks, and 5G Systems,” “Programmable Networks, Security, and Internet of Things (IoT),” “LTE/LTE-Advanced (LTE-A) Networks,” and “Energy Efficiency and Green Networks”. A brief account for each of these articles is given below.