In this letter, cognitive two-tier femtocell networks are considered, where each femtocell
transmits over subchannels that are considered idle by spectrum sensing. Since femtocells …

In this study, the performance analysis of the cooperative location estimation algorithms in
5G cellular networks is investigated. By using the time of arrival (TOA) triangulation method …

The protection of primary user activities plays a vital part in dynamic spectrum access. There
are currently two types of schemes. One is based on spectrum sensing and the other one …

Cognitive radio enabled small cell network is an emerging technology to address the
exponentially increasing mobile traffic demand of next generation mobile communications …

Combining femtocell networks and cognitive radio (CR) technology is one of the most
promising solutions to offload emerging traffic from cellular networks. Mobility management …

Driven by the primary requirement of emerging 5G mobile services, the demand for
concurrent multipath transfer (CMT) is still prominent. Yet, multipath transport protocols are …

It is essential to estimate the position of primary users (PUs) for the further development of
cognitive radio (CR) networks. Great efforts have been done to seek for localization …

With the integration of smartphone into daily life, end users store a large amount of sensitive
information into Android device. For protecting the sensitive information, a method of multi …

In this paper, we propose a novel resource allocation scheme for co-channel interference
avoidance in LTE heterogeneous networks with universal spectrum reuse where both macro …

This paper proposes a reserved channel based spectrum handover mechanism for cognitive
heterogeneous networks (HetNet). To properly handover secondary users from Macro to …