Coexistence of LTE-U and Wi-Fi sharing unlicensed spectrum in ultra-dense networks

Peng Li; Xiliang Du; Liangliang Tian; Hongsen Ma; Yong Wang

doi:10.1117/12.2656584

20 October 2022 Coexistence of LTE-U and Wi-Fi sharing unlicensed spectrum in ultra-dense networks

Peng Li, Xiliang Du, Liangliang Tian, Hongsen Ma, Yong Wang

Proceedings Volume 12451, 5th International Conference on Computer Information Science and Application Technology (CISAT 2022); 1245146 (2022) https://doi.org/10.1117/12.2656584
Event: 5th International Conference on Computer Information Science and Application Technology (CISAT 2022), 2022, Chongqing, China

Abstract

Spectrum sharing is an important approach to meet the requirements of the exponential increase in the demand for capacity in wireless communication. Long-Term Evolution (LTE) and Wi-Fi are two of the most remarkable wireless technologies at present. LTE-Unlicensed (LTE-U) bands have been introduced by the 3rd Generation Partnership Project (3GPP) to increase throughput and offload data from crowded licensed bands. Researches indicate that LTE-U exerts significant interference on Wi-Fi in dense and ultra-dense scenarios, preventing the harmonious coexistence of LTE-U and Wi-Fi. Therefore, it is necessary to adopt the coexistence scheme for restraining interference between LTE-U and Wi-Fi in unlicensed bands. In this paper, a dynamic on/off scheme is proposed to address the coexistence issues of LTEU and Wi-Fi when sharing unlicensed spectrum. We choose GNU Radio and Universal Software Radio Peripheral (USRP) in this study to construct a real-time test platform for investigating the performance of coexistence schemes based on software-defined radio (SDR). Using this platform, we conducted real-time experiments on the coexistence schemes of LTE-U and Wi-Fi in real wireless environments. The test results showed that the dynamic on/off scheme has better performance than the static on/off scheme in dense and ultra-dense scenarios. Harmonious coexistence can be achieved by adopting the dynamic on/off scheme in dense and ultra-dense scenarios.

Citation Download Citation

Peng Li, Xiliang Du, Liangliang Tian, Hongsen Ma, and Yong Wang "Coexistence of LTE-U and Wi-Fi sharing unlicensed spectrum in ultra-dense networks", Proc. SPIE 12451, 5th International Conference on Computer Information Science and Application Technology (CISAT 2022), 1245146 (20 October 2022); https://doi.org/10.1117/12.2656584

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mobile communications

Computer simulations

Communication engineering

Data communications

Telecommunications

Time division multiplexing

Transceivers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years