Enabling Fairness and QoS for LTE/Wi-Fi Coexistence in Unlicensed Spectrum
Maule, Massimiliano (2017)
2017
Science and Engineering
Tieto- ja sähkötekniikan tiedekunta - Faculty of Computing and Electrical Engineering
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Hyväksymispäivämäärä
2017-08-16
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201708241702
https://urn.fi/URN:NBN:fi:tty-201708241702
Tiivistelmä
The increase of the number of interconnected devices, the Internet of Things (IoT) and new types of services have led to the development of new techniques to improve data transmission and new commercial opportunities in the telecommunications world.
A possible solution that has attracted many telecom companies is the ability to expand their business by exploring new frequency bands, in particular the unlicensed spectrum.
Licensed Assisted Access (LAA) is an LTE based technology that leverages the 5GHz unlicensed band along with licensed spectrum to deliver a performance boost for mobile device users.
A key aspect of LAA is how to regulate access to the communication channel in order to maintain fairness between LTE and other technologies already present in this spectrum section.
Listen Before Talk (LBT) is a technique used in radiocommunications whereby radio transmitters first sense its radio environment before it starts a transmission. However, the aggressive character of LTE is not always correctly managed by LBT.
Based on this observation, we have tried to develop a new channel access method that makes LTE less invasive on the unlicensed spectrum, providing high performance services.
The results obtained show that our algorithm is able to better balance resource sharing by ensuring that all technologies within the frequency band have good coexistence and high performance.
A possible solution that has attracted many telecom companies is the ability to expand their business by exploring new frequency bands, in particular the unlicensed spectrum.
Licensed Assisted Access (LAA) is an LTE based technology that leverages the 5GHz unlicensed band along with licensed spectrum to deliver a performance boost for mobile device users.
A key aspect of LAA is how to regulate access to the communication channel in order to maintain fairness between LTE and other technologies already present in this spectrum section.
Listen Before Talk (LBT) is a technique used in radiocommunications whereby radio transmitters first sense its radio environment before it starts a transmission. However, the aggressive character of LTE is not always correctly managed by LBT.
Based on this observation, we have tried to develop a new channel access method that makes LTE less invasive on the unlicensed spectrum, providing high performance services.
The results obtained show that our algorithm is able to better balance resource sharing by ensuring that all technologies within the frequency band have good coexistence and high performance.