Multiband and multitier network densification is being considered the most promising
solution to overcome the capacity-crunch problem of cellular networks. In this direction …

Cellular heterogeneous networks (HetNets), which are realized through shared carrier
deployments of macrocells and small cells, are widely seen as a potential solution to serve …

Typically, mobile users cluster around points of interest in dense urban environments such
as city centers forming so-called data traffic hot spots and hot zones. To provide capacity to …

Heterogeneous networks (HetNets) are being deployed as a feasible and cost-effective
solution to address the recent data explosion caused by smart phones and tablets. In a co …

The technical challenges, eg the mobility management and the offloading process, hinder
the conventional cellular systems to meet the huge data traffic requirements of the next …

The unrelenting increase in the population of mobile users and their traffic demands drive
cellular network operators to densify their network infrastructure. Network densification …

This chapter presents the optimization of small cells focusing especially on the radio
resource management. The optimization considers the following aspects: mobility, data …

Heterogeneous cellular networks (HetNets) are one of the key enabling technologies for fifth
generation (5 G) networks. In HetNets, the use of small base stations (SBSs) inside the …

It is widely accepted that future capacity demands will require the deployment of dense small
cell networks most surely co-existing with legacy macro cell deployments forming a so …

In this article we first summarize some of the most recent HetNet mobility studies for
LTEAdvanced, and use these to highlight the challenges that should be further addressed in …