Advertisement

On the Impact of LTE-U on Wi-Fi Performance

  • Alireza Babaei
  • Jennifer Andreoli-Fang
  • Yimin Pang
  • Belal Hamzeh
Article

Abstract

With the exponential growth in mobile data traffic taking place currently and projected into the future, mobile operators need cost effective ways to manage the load of their networks. Traditionally, this has been achieved by offloading mobile traffic onto Wi-Fi networks due to their low cost and increasingly ubiquitous deployment. Recently, LTE operating in the unlicensed spectrum has drawn significant interests from mobile operators due to the availability of the unlicensed spectrum. Using this technology, the unlicensed spectrum is directly utilized by LTE without the need to offload traffic to an alternative radio access technology such as Wi-Fi. However, the deployment of LTE networks in the unlicensed band poses significant challenges to the performance of current and future Wi-Fi networks. We discuss the LTE and Wi-Fi coexistence challenges and present analysis on performance degradation of the Wi-Fi networks at the presence of LTE.

Keywords

Heterogeneous networks coexistence LAA-LTE LTE unlicensed LTE-U Radio spectrum management Wi-Fi 

References

  1. 1.
    “3GPP system to Wireless Local Area Network (WLAN) interworking; System description,” 3GPP TS 23.234 v6.9.0 (2006-06).Google Scholar
  2. 2.
    “U-LTE: Unlicensed spectrum utilization of LTE,” Huawei Whitepaper.Google Scholar
  3. 3.
    “Extending the benefits of LTE-A to unlicensed spectrum,” Qualcomm Whitepaper , April 2014.Google Scholar
  4. 4.
    A. M. Cavalcante and et al., “Performance evaluation of LTE and Wi-Fi coexistence in unlicensed bands,” in Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th, pp. 1–6, IEEE, 2013.Google Scholar
  5. 5.
    T. Nihtila, V. Tykhomyrov, O. Alanen, M. Uusitalo, A. Sorri, M. Moisio, S. Iraji, R. Ratasuk, and N. Mangalvedhe, “System performance of LTE and IEEE 802.11 coexisting on a shared frequency band,” in Wireless Communications and Networking Conference (WCNC), 2013 IEEE, pp. 1038–1043, April 2013.Google Scholar
  6. 6.
    “Technical Specification Group Radio Access Network; Study on Licensed-Assisted Access to Unlicensed Spectrum; (Release 13),” 3GPP TR 36.889.0.4.0.Google Scholar
  7. 7.
    H. Alnuweiri, Y. Fallah, P. Nasiopoulos, and S. Khan, “OFDMA-Based Medium Access Control for Next-Generation WLANs,” EURASIP Journal on Wireless Communications and Networking 2009(1), p. 512865, 2009.Google Scholar
  8. 8.
    G. Bianchi, “Performance analysis of the IEEE 802.11 distributed coordination function,” Selected Areas in Communications, IEEE Journal on 18(3), pp. 535–547, 2000.CrossRefGoogle Scholar
  9. 9.
    H. Zhai, Y. Kwon, and Y. Fang, “Performance analysis of IEEE 802.11 MAC protocols in wireless LANs,” Wireless communications and mobile computing 4(8), pp. 917–931, 2004.CrossRefGoogle Scholar
  10. 10.
    A. Banchs, P. Serrano, and A. Azcorra, “End-to-end delay analysis and admission control in 802.11 DCF WLANs,” Computer Communications 29(7), pp. 842–854, 2006.CrossRefGoogle Scholar
  11. 11.
    A. Papoulis and S. U. Pillai, Probability, random variables, and stochastic processes, Tata McGraw-Hill Education, 2002.Google Scholar
  12. 12.
    “Broadband Radio Access Networks (BRAN); GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive,” ETSI EN 301 893 V1.7.1 (2012-06).Google Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Alireza Babaei
    • 1
  • Jennifer Andreoli-Fang
    • 1
  • Yimin Pang
    • 2
  • Belal Hamzeh
    • 1
  1. 1.Cable Television LaboratoriesLouisvilleUSA
  2. 2.ECEE DepartmentUniversity of Colorado BoulderBoulderUSA

Personalised recommendations