Skip to main content
SpringerLink
Log in

Study of the Collision Resolution Method in New Radio Unlicensed Networks with Multichannel Access of Type A

  • DATA TRANSMISSION IN COMPUTER NETWORKS
  • Published:
Journal of Communications Technology and Electronics Aims and scope Submit manuscript

Abstract

New Radio Unlicensed (NR-U), a fifth-generation cellular communication technology, allows base stations to use multichannel transmissions in the unlicensed frequency band, which is of great practical interest. However, the simultaneous operation of several NR-U operators in the same frequency channels leads to an increase in the number of collisions in the network when gaining access to an unlicensed channel. In this paper, we study the effectiveness of the collision resolution method previously proposed for single-channel transmissions when base stations use the multi-channel access method of access of Type A defined in the NR-U specification. Scenarios of coexistence of two NR-U operators with a various choice of active channels are considered. The normalized network throughput and the uniformity of the distribution of channel resources between the base stations of operators are estimated. It is shown that the use of the collision resolution method makes it possible to increase the total throughput by up to 20% compared to the standard method.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.

REFERENCES

  1. M. Hirzallah, M. Krunz, B. Kecicioglu, and B. Hamzeh, “5G new radio unlicensed: Challenges and evaluation,” IEEE Trans. Cognitive Commun. & Networking 7, 689–701 (2020).

  2. V. A. Loginov, A. I. Lyakhov, and E. M. Khorov, “Coexistence of Wi-Fi and LTE-LAA networks: Open issues,” J. Commun. Technol. Electron. 63 (12), 1530–1537 (2018).

  3. Q. D. Ho, D. Tweed, and T. Le-Ngoc, Requirements and regulations in the 5 GHz unlicensed spectrum. Long term evolution in unlicensed bands (Springer, Cham, 2017), pp. 11–20.

    Book  Google Scholar 

  4. V. Sathya, S. M. Kala, M. I. Rochman, M. Ghosh, and S. Roy, “Standardization advances for cellular and Wi-Fi coexistence in the unlicensed 5 and 6 GHz bands,” GetMobile: Mobile Comput.& Commun. 24 (1), 5–15 (2020).

    Article  Google Scholar 

  5. “Physical layer procedures for shared spectrum channel access,” Document 3GPP, TS 37.213, Version 16.7.0, (2021).

  6. V. Sathya, M. I. Rochman, and M. Ghosh, “Measurement-based coexistence studies of LAA & Wi-Fi deployments in Chicago,” IEEE Wireless Commun. 28, 136–143 (2020).

  7. “Study on NR-based access to unlicensed spectrum,” Document 3GPP, TR 38.889, Version 16.0.0, (2018).

  8. V. A. Loginov, A. Yu. Troegubov, A. I. Lyakhov, and E. M. Khorov, “Study of the multichannel access method in coexistence scenarios of two New Radio Unlicensed operators,” J. Commun. Technol. Electron. 67, 1521–1530 (2022).

  9. V. Loginov, A. Troegubov, A. Lyakhov, and E. Khorov, “Enhanced collision resolution methods with mini-slot support for 5G NR-U,” IEEE Access 9, 146137–146152 (2021).

    Article  Google Scholar 

  10. K. Kosek-Szott, A. L. Valvo, S. Szott, P. Gallo, and I. Tinnirello, “Downlink channel access performance of NR-U: Impact of numerology and mini-slots on coexistence with Wi-Fi in the, 5 GHz band,” Comput. Networks 195, 108188 (2021).

    Article  Google Scholar 

  11. V. Loginov, A. Lyakhov, and V. Zhdanovskiy, “Performance analysis of LBT with limited reservation signal duration for fair LTE-LAA/Wi-Fi coexistence,” in Proc. IEEE Int. Black Sea Conf. on Communications and Networking (BlackSeaCom), IEEE, Sochi, Russia, June, 3–6, 2019 (IEEE, New York, 2019), pp. 1–5.

  12. J. Wszołek, S. Ludyga, W. Anzel, and S. Szott, “Revisiting LTE LAA: Channel Access, QoS, and Coexistence with Wi‑Fi. 59 (2), 91–97 (2021).

  13. V. D. Zhdanovskiy, V. A. Loginov, and A. I. Lyakhov, “A study on the impact of out-of-band emissions on performance of 5G new radio-unlicensed (NR-U) networks,” J. Commun. Technol. Electron. 66, 784–795 (2021).

    Article  Google Scholar 

  14. L. H. Vu and J. H. Yun, “Adaptive self-deferral for carrier aggregation of LTE-LAA with RF power leakage in unlicensed spectrum,” IEEE Access 7, 89292–89305 (2019).

  15. Y. Kakkad, D. K. Patel, S. Kavaiya, S. Sun, and M. Lopez-Benitez, “Optimal 3GPP fairness parameters in 5G NR unlicensed (NR-U) and WiFi coexistence,” IEEE Trans. Vehicular Technol., (2022).

  16. S. Szott, K. Kosek-Szott, A. L. Valvo, and I. Tinnirello, “Using self-deferral to achieve fairness between Wi-Fi and NR-U in downlink and uplink scenarios,” Comput. Commun. 193, 176–188 (2022).

  17. V. Loginov, E. Khorov, A. Lyakhov, and I. F. Akyildiz, “CR-LBT: Listen-before-talk with collision resolution for, 5G NR-U networks,” IEEE Trans. Mobile Comput. 21, 3138–3149 (2021).

    Article  Google Scholar 

  18. H. Kushwaha, V. J. Kotagi, and C. S. R. Murthy, “On the effects of transmit power control on multi carrier LAA-WiFi coexistence,” IEEE Trans. Sustainable Comput. 7, 656–667 (2021).

  19. Q. Ren, J. Zheng, B. Wang, and Y. Zhang, “Performance modeling of an NR-U and WiFi coexistence system with NR-U type B multi-channel access procedure,” IEEE Internet of Things J. (2022).

    Google Scholar 

  20. S. Tuladhar, L. Cao, and R. Viswanathan, “Fair coexistence of LAA and WiFi in multi-carrier LBT based on joint throughput and airtime fairness,” in Proc. IEEE Int. Symp. on Dynamic Spectrum Access Networks (DySPAN), IEEE, 2021, pp. 147–152.

  21. N. Korolev, I. Levitsky, I. Startsev, B. Bellalta, and E. Khorov, “Study of multi-link channel access without simultaneous transmit and receive in IEEE 802.11be Networks,” IEEE Access, vol. 10, pp. 126339–126351 (2022).

    Article  Google Scholar 

  22. N. Korolev, I. Levitsky, and E. Khorov, “Analytical model of multi-link operation in saturated heterogeneous Wi-Fi 7 networks,” IEEE Wireless Communications Letters 11 (12), 2546–2549, (Dec. 2022).

    Article  Google Scholar 

  23. V. Torgunakov, V. Loginov, and E. Khorov, “A study of channel bonding in IEEE 802.11bd networks,” IEEE Access 10, 25514–25533, (2022).

  24. R. K. Jain, D. M. W. Chiu, and W. R. Hawe, „A quantitative measure of fairness and discrimination,“ (Eastern Res. Lab., Digital Equipment Corporation, Hudson, MA, 1984), vol. 21.

Download references

Author information

Authors and Affiliations

  1. Kharkevich Institute of Information Transmission Problems of the Russian Academy of Sciences, 127051, Moscow, Russia

    A. Yu. Troegubov, V. A. Loginov, A. I. Lyakhov & E. M. Khorov

  2. Moscow Institute of Physics and Technology (National Research University), 141701, Dolgoprudny, Moscow oblast, Russia

    A. Yu. Troegubov

Authors
  1. A. Yu. Troegubov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. A. Loginov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. I. Lyakhov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. E. M. Khorov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to A. Yu. Troegubov, V. A. Loginov, A. I. Lyakhov or E. M. Khorov.

Ethics declarations

The authors declare that they have no conflicts of interest.

Additional information

Translated by A. Ivanov

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Troegubov, A.Y., Loginov, V.A., Lyakhov, A.I. et al. Study of the Collision Resolution Method in New Radio Unlicensed Networks with Multichannel Access of Type A. J. Commun. Technol. Electron. 67 (Suppl 2), S248–S254 (2022). https://doi.org/10.1134/S1064226922140091

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1064226922140091

Search

Navigation