Heterogeneous Networks (HetNets) that combine cells from various sizes ranging from macrocells to different kinds of small-cells are widely seen as one of the approaches that will be used to solve the problem of rapidly increasing data traffic in cellular networks. Based on such observation, this special issue focuses on the crucial aspects of practical design and management issues for heterogeneous networks, including energy and bandwidth efficiency of multi-tier wireless heterogeneous networks as well as interference and radio resource management algorithms.
Edited by: Lila Boukhatem, Adrian Kliks, Jordi Perez-Romero and Andreas Zalonis