Intelligent data aggregation approaches and technologies play an important and increasing role in practice due to the widespread adoption of mobile devices in many applications. Motivated not only by the increasing number of mobile devices, but also their ever-growing computing and sensing capabilities, there have been efforts to leverage these devices as destination for offloading computations/data in the context of IoT applications. The special issue aims at presenting a collection of high-quality research papers on the state-of-the-art in the smart data aggregation and routing techniques.