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ICL
2016

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

3 years 11 months ago
Random Access or Scheduling: Optimum LTE Licensed-Assisted Access to Unlicensed Spectrum
—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.
Shao-Yu Lien, Jorden Lee, Ying-Chang Liang
Added 04 Apr 2016
Updated 04 Apr 2016
Type Journal
Year 2016
Where ICL
Authors Shao-Yu Lien, Jorden Lee, Ying-Chang Liang
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