A Fair Listen-Before-Talk Algorithm for Coexistence of LTE-U and WLAN

Haneul Ko; Jaewook Lee; Sangheon Pack

doi:10.1109/TVT.2016.2533627

A Fair Listen-Before-Talk Algorithm for Coexistence of LTE-U and WLAN

Haneul Ko, Jaewook Lee, Sangheon Pack

Research output: Contribution to journal › Article › peer-review

92 Citations (Scopus)

Abstract

Recently, there has been an increasing interest in operating long-term evolution (LTE) in unlicensed bands (i.e., LTE-U). However, since LTE and wireless local area networks (WLANs) are designed to operate in different bands, they have no coexistence mechanism, which leads to significant performance degradation. In particular, since LTE does not sense channel vacancy prior to transmissions, the LTE interference severely affects the WLAN operation. To address this problem, we propose a fair listen-before-talk (F-LBT) algorithm for coexistence of LTE-U and WLAN in unlicensed bands. F-LBT jointly considers the total system throughput and the fairness between LTE-U and WLAN and then allocates an appropriate idle period for WLAN. Evaluation results demonstrate that F-LBT can improve the total system throughput while providing the fairness between LTE-U and WLAN.

Original language	English
Article number	7419263
Pages (from-to)	10116-10120
Number of pages	5
Journal	IEEE Transactions on Vehicular Technology
Volume	65
Issue number	12
DOIs	https://doi.org/10.1109/TVT.2016.2533627
Publication status	Published - 2016 Dec

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

Coexistence
LTE-unlicensed (LTE-U)
discrete-time Markov chain (DTMC)
fairness
listen before talk (LBT)
throughput
unlicensed bands

ASJC Scopus subject areas

Automotive Engineering
Aerospace Engineering
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TVT.2016.2533627

Cite this

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abstract = "Recently, there has been an increasing interest in operating long-term evolution (LTE) in unlicensed bands (i.e., LTE-U). However, since LTE and wireless local area networks (WLANs) are designed to operate in different bands, they have no coexistence mechanism, which leads to significant performance degradation. In particular, since LTE does not sense channel vacancy prior to transmissions, the LTE interference severely affects the WLAN operation. To address this problem, we propose a fair listen-before-talk (F-LBT) algorithm for coexistence of LTE-U and WLAN in unlicensed bands. F-LBT jointly considers the total system throughput and the fairness between LTE-U and WLAN and then allocates an appropriate idle period for WLAN. Evaluation results demonstrate that F-LBT can improve the total system throughput while providing the fairness between LTE-U and WLAN.",

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A Fair Listen-Before-Talk Algorithm for Coexistence of LTE-U and WLAN

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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