Random Access or Scheduling: Optimum LTE Licensed-Assisted Access to Unlicensed Spectrum

Shao Yu Lien; Jorden Lee; Ying Chang Liang

doi:10.1109/LCOMM.2016.2516527

Random Access or Scheduling: Optimum LTE Licensed-Assisted Access to Unlicensed Spectrum

Shao Yu Lien, Jorden Lee, Ying Chang Liang

智慧系統與應用研究所

研究成果: Article › 同行評審

51 引文斯高帕斯（Scopus）

摘要

To deploy long-term evolution advanced (LTE-A) networks on unlicensed bands, licensed-assisted access (LAA) has been regarded as an unprecedented technology in the third generation partnership project (3GPP) Rel-13. However, due to uncontrollable interference from collocated WiFi networks, a particular LAA-WiFi hidden terminal problem may occur, thus degrading the performance of the existing scheduling-based radio access in LTE-A. To provide foundations for LAA standardization, we analytically derive the optimum radio access for LAA, which reveals a dynamic switch between scheduling-based and random access schemes. The switching condition derived in this letter thus suggests the optimum design for LAA networks.

原文	English
文章編號	7378266
頁（從 - 到）	590-593
頁數	4
期刊	IEEE Communications Letters
卷	20
發行號	3
DOIs	https://doi.org/10.1109/LCOMM.2016.2516527
出版狀態	Published - 3月 2016

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10.1109/LCOMM.2016.2516527

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title = "Random Access or Scheduling: Optimum LTE Licensed-Assisted Access to Unlicensed Spectrum",

abstract = "To deploy long-term evolution advanced (LTE-A) networks on unlicensed bands, licensed-assisted access (LAA) has been regarded as an unprecedented technology in the third generation partnership project (3GPP) Rel-13. However, due to uncontrollable interference from collocated WiFi networks, a particular LAA-WiFi hidden terminal problem may occur, thus degrading the performance of the existing scheduling-based radio access in LTE-A. To provide foundations for LAA standardization, we analytically derive the optimum radio access for LAA, which reveals a dynamic switch between scheduling-based and random access schemes. The switching condition derived in this letter thus suggests the optimum design for LAA networks.",

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N2 - To deploy long-term evolution advanced (LTE-A) networks on unlicensed bands, licensed-assisted access (LAA) has been regarded as an unprecedented technology in the third generation partnership project (3GPP) Rel-13. However, due to uncontrollable interference from collocated WiFi networks, a particular LAA-WiFi hidden terminal problem may occur, thus degrading the performance of the existing scheduling-based radio access in LTE-A. To provide foundations for LAA standardization, we analytically derive the optimum radio access for LAA, which reveals a dynamic switch between scheduling-based and random access schemes. The switching condition derived in this letter thus suggests the optimum design for LAA networks.

AB - To deploy long-term evolution advanced (LTE-A) networks on unlicensed bands, licensed-assisted access (LAA) has been regarded as an unprecedented technology in the third generation partnership project (3GPP) Rel-13. However, due to uncontrollable interference from collocated WiFi networks, a particular LAA-WiFi hidden terminal problem may occur, thus degrading the performance of the existing scheduling-based radio access in LTE-A. To provide foundations for LAA standardization, we analytically derive the optimum radio access for LAA, which reveals a dynamic switch between scheduling-based and random access schemes. The switching condition derived in this letter thus suggests the optimum design for LAA networks.

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Random Access or Scheduling: Optimum LTE Licensed-Assisted Access to Unlicensed Spectrum

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