Coexistence of Wi-Fi and LAA Networks With Adaptive Energy Detection

Licensed-assisted access (LAA) of the long term evolution (LTE) has been standardized by the Third Generation Partnership Project (3GPP) in Release 13 to address the urgent issues of ever-increasing traffic demands in cellular systems. However, challenges arise for the efficient coexistence of Wi-Fi...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on vehicular technology Vol. 66; no. 11; pp. 10384 - 10393
Main Authors Li Li, Seymour, James P., Cimini, Leonard J., Chien-Chung Shen
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2017
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
3GPP
Adaptive algorithms
Adaptive energy detection
Cats
Change detection
Collisions
Computer simulation
Downlink
IEEE 802.11 Standard
IEEE 802.11ac
Licensed-assisted access (LAA)
Long Term Evolution
Mobile communication systems
Sensors
Thresholds
Wireless communications
Wireless fidelity
Online AccessGet full text

Cover

More Information
Summary:Licensed-assisted access (LAA) of the long term evolution (LTE) has been standardized by the Third Generation Partnership Project (3GPP) in Release 13 to address the urgent issues of ever-increasing traffic demands in cellular systems. However, challenges arise for the efficient coexistence of Wi-Fi and LAA in the same unlicensed spectrum. In this paper, the impact of LAA's energy detection thresholds on such coexistence are investigated from the perspective of collisions occurring during downlink transmissions. To facilitate the efficient coexistence of Wi-Fi and LAA, a distributed algorithm is proposed to adaptively change the energy detection thresholds of LAA per user or per base station, so that the system encourages more concurrent transmissions without introducing too many collisions. Simulation results validate the effectiveness of the proposed adaptive algorithm.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2017.2741261