2017
DOI: 10.1109/mcomstd.2017.1700040
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Abstract: The commercial success of the Long Term Evolution (LTE) and the resulting growth in mobile data demand have urged cellular network operators to strive for new innovations. LTE in unlicensed spectrum has been proposed to allow cellular network operators to offload some of their data traffic by accessing the unlicensed 5 GHz frequency band. Currently, there are three proposed variants for LTE operation in the unlicensed band, namely LTE-U, Licensed Spectrum Access (LAA), and MulteFire. This paper provides a comp… Show more

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Cited by 57 publications
(42 citation statements)
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“…While the licensed spectrum has better performance due to less interference, the increasing number of connected devices drives the necessity to use unlicensed spectrum. License Assisted Access, LTE in Unlicensed Spectrum and Multefire [193] are three representatives to explore LTE services in the unlicensed 5 GHz band [194]. License Assisted Access and LTE in Unlicensed Spectrum use the unlicensed band by offloading traffic to boost data rate and reduce transmission time (T t ), while the control signals stay in the licensed band.…”
Section: Other Standardization Activitiesmentioning
confidence: 99%
“…While the licensed spectrum has better performance due to less interference, the increasing number of connected devices drives the necessity to use unlicensed spectrum. License Assisted Access, LTE in Unlicensed Spectrum and Multefire [193] are three representatives to explore LTE services in the unlicensed 5 GHz band [194]. License Assisted Access and LTE in Unlicensed Spectrum use the unlicensed band by offloading traffic to boost data rate and reduce transmission time (T t ), while the control signals stay in the licensed band.…”
Section: Other Standardization Activitiesmentioning
confidence: 99%
“…One prime example of a network that relies on LBT for IoT access is the MulteFire network [13], which is a 3GPP-compliant standard for cellular-like access in the unlicensed spectrum [19]. 1 It combines the simplicity of WiFi deployment and the reliability of cellular networks, and it is envisioned to enable a stand-alone unlicensed 5G-NR [20].…”
Section: A Related Workmentioning
confidence: 99%
“…LTE-LAA and LTE-U occupies licensed and unlicensed bands at the same time through the use of carrier aggregation. Signalling and traffic with specific Quality-of-Services (QoS) requirements will use licensed bands, while less critical traffic is offloaded to unlicensed bands [12,15,16]. Some technologies employing sharing type (i-B) are Wi-Fi and MulteFire, which is a LTE-LAA based technology that works solely in unlicensed bands without the need for an anchor in licensed band [17].…”
Section: A Motivationmentioning
confidence: 99%
“…Technologies devised for spectrum sharing in unlicensed bands, such as LTE-U, LTE-LAA and MulteFire avoid interfering with neighbour networks by employing simple senseand-avoid techniques [15], however, in the foreseen dense and diverse future use of spectrum, these simple schemes will not survive, because only local information about the medium availability and naive avoidance mechanisms are insufficient to maintain end-to-end QoS of multiple competing wireless links. On the other hand, technologies for spectrum sharing in licensed bands such as SAS and LSA avoid interference by having a central arbitrator to decide how the licensees will access the incumbents' band, however, in order to ensure reliable QoS to incumbents and licensees, these technologies can not depend exclusively on geo-location and spectrum data bases to decide how they grant access the spectrum [18].…”
Section: A Motivationmentioning
confidence: 99%
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