The fifth generation (5G) mobile networks are envisioned to support the deluge of data traffic
with reduced energy consumption and improved quality of service (QoS) provision. To this …

By deploying additional low power nodes (LPNs) within the coverage area of traditional high
power nodes (HPNs) and bringing them closer to users, underlay heterogeneous networks …

We present a new architecture to handle the ongoing explosive increase in the demand for
video content in wireless networks. It is based on distributed caching of the content in …

3GPP has completed a study on coordinated multipoint transmission and reception
techniques to facilitate cooperative communications across multiple transmission and …

The success of LTE heterogeneous networks (HetNets) with macrocells and picocells
critically depends on efficient spectrum sharing between high-power macros and low-power …

We propose a unified static framework to study the interplay of user association and
resource allocation in heterogeneous cellular networks. This framework allows us to …

In heterogeneous cellular networks (HCNs), it is desirable to offload mobile users to small
cells, which are typically significantly less congested than the macrocells. To achieve …

The deployment of femtocells in a macrocell network is an economical and effective way to
increase network capacity and coverage. Nevertheless, such deployment is challenging due …

This paper considers optimization of the user and base-station (BS) association in a wireless
downlink heterogeneous cellular network under the proportional fairness criterion. We first …

We develop a general downlink model for multi-antenna heterogeneous cellular networks
(HetNets), where base stations (BSs) across tiers may differ in terms of transmit power, target …