Guest edited issues are in many ways the backbone of IEEE Wireless Communications. Indeed, initially the idea was that every issue would be a Special Issue (SI) on a particular topic. In the first several years, virtually all issues fell into that category. IEEE Wireless Communications has continued to focus on guest edited issues, or SIs, containing good articles and editorial content. The editorial board is proactively approaching the technical community to organize these special issues on cutting edge topics in wireless communications.