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In order to cope with the exponential growth of mobile traffic, mobile operators need to access more spectrum resources. LTE in unlicensed spectrum (LTE-U) has been proposed to extend the usual operation of LTE in licensed spectrum to cover also unlicensed spectrum. However, this extension poses significant challenges especially regarding the coexistence between LTE-U and legacy systems like Wi-Fi...
To address the mobile data growth challenges, mobile operators need to access more spectrum resources. LTE in unlicensed spectrum (LTE-U) has been proposed to extend the usual operation of LTE in licensed spectrum to cover also unlicensed spectrum, mainly at 5 GHz band due to its wide spectrum availability. However, this extension poses significant challenges especially regarding the coexistence between...
Information Centric Networking (ICN) is envisioned to be the future Internet architecture and mobile access network e.g., Long Term Evolution (LTE), and 5G will be the major access networks. In this paper, we present a cache management and cooperative request forwarding schemes for Scalable Video Streaming (SVS) in Information Centric Networking (ICN) enabled mobile access networks. H.264/SVC encoded...
Fault management becomes an important part of operation and maintenance procedure. Operator cellular needs to reduce the number of errors, such us degradation or outage to provide a good service quality of the network. An automation is one of challenges to make operation and maintenance procedure becomes simpler. This paper presents a simulation of the Self-Healing mechanism in LTE network with a...
With licensed spectrum at a premium, recent interest has shifted to investigating the possibility of utilizing unlicensed bands as a means of providing additional bandwidth. License assisted access (LAA) and Long Term Evolution-Unlicensed (LTE-U) are radio access technologies (RATs) aimed at providing carrier-grade wireless service in the 5 GHz unlicensed spectrum. Since Wi-Fi devices are widespread...
In this paper, we propose a carrier selection scheme for LTE system in unlicensed band. Instead of maintaining frequency reuse factor of one as the conventional LTE system in licensed band, the proposed scheme dynamically choose a best carrier for each cell. Simulation results verify that the proposed scheme could provide improved system throughput performance.
The existing wireless cellular networks can provide machine-to-machine (M2M) service to machine-type communication (MTC) devices deployed in large coverage areas. However, the current Long Term Evolution (LTE) cellular networks designed for human users may not be able to handle a large number of bursty random access requests from MTC devices. In this paper, we propose to jointly use access class barring...
Methods of self-organizing networks (SON) are an essential part of the latest 3rd Generation Partnership Project (3GPP) technology Long Term Evolution (LTE). Among the different identified use cases in standard self-organized handover optimization plays an important role concerning the overall radio network performance. In this paper, we present results as obtained from simulations on a handover optimization...
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