This article is cited in 2 papers

Stochastic Systems

Mathematical modeling of joint operation of wireless local area networlss and fifth generation cellular networks

P. N. Kutsevol, V. A. Loginov, A. I. Lyakhov, E. M. Khorov

Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, Russia

Abstract: To improve the performance of LTE cellular networks operating in the licensed frequency spectrum, a new LTE-LAA technology has been developed that allows LTE devices to transmit data in unlicensed frequency bands already used by Wi-Fi devices. The channel access method in LTE-LAA networks, as well as in Wi-Fi networks, is based on the mechanism of carrier sense with collision avoidance; however, LTE-LAA transmission can only begin at the boundary of licensed slots. In this work, we develop a mathematical model for the joint operation of LTE-LAA and Wi-Fi networks, which allows to assess the fairness of the distribution of channel resources between LTE-LAA stations and Wi-Fi stations depending on the duration of the licensed slot, the regulation of which will become possible as part of the New Radio technology of fifth generation cellular networks.

Keywords: wireless networks, cellular networks, Wi-Fi, LTE, mathematical model, performance evaluation, optimization.

Presented by the member of Editorial Board: B. M. Miller

Received: 29.04.2019
Revised: 09.07.2019
Accepted: 18.07.2019

DOI: 10.1134/S0005231019120079

 English version: Automation and Remote Control, 2019, 80:12, 2180–2194

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