Heterogeneous cellular networks: From theory to practice.
Amitabha Amitava GhoshNitin MangalvedheRapeepat RatasukBishwarup MondalMark CudakEugene VisotskyTimothy A. ThomasJeffrey G. AndrewsPing XiaHan-Shin JoHarpreet S. DhillonThomas David NovlanPublished in: IEEE Commun. Mag. (2012)