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In recent years, the advances in mobile network technologies have revolutionized the paradigm how the users receive video and audio content. With the rise of smart phones and tablets having large screens, users have become more interested than anytime before in watching linear and non-linear TV programs on their mobile devices. This is because the users can fetch nowadays the content using their mobile...
Flexible and efficient spectrum usage in cellular communication systems is a key to meet the service demand of forthcoming 4G and 5G networks by 2020. Recent wide-band power measurements in an urban environment show that spectrum below 6 GHz is still under-utilized. Licensed shared access (LSA) is one technique which can be deployed to make use of these valuable resources. In this paper we highlight...
The expected increase of the traffic volume in mobile broadband networks and the upcoming spectrum scarcity, require an optimization of the usage of the spectrum. One of the solutions is Authorised/Licensed Shared Access (ASA/LSA)1, a new regulatory concept that allows license holders (incumbents) to share spectrum with other service providers, under well-defined conditions, unlocking additional bands...
This study proposes a coordinated dynamic spectrum access (DSA) scheme for LTE based on cognitive radio (CR) technology, where a central entity, a Spectrum Policy Server (SPS), performs the spectrum management in a LTE multi-operator heterogeneous network (HetNet). More specifically, the scenario analyzed is based on a system deployment formed by two Mobile Network Operators (MNOs), each operating...
Mobile communication systems have evolved over the past decades and each new generation brought new experience to the users enabled by technology innovations, while keeping some well established principles from previous generations. This trend continued up to LTE (Long Term Evolution) Advanced, the predominant 4th generation system which has just been standardized in 3GPP and is being rolled out soon...
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