Coexistência Wi-Fi x LTE: uma análise comparativa de desempenho entre o LAA e o LTE-U

Daniel Luzente de Lima, Marcelo Gonçalves Rubinstein

DOI: 10.14209/sbrt.2021.1570733940

Evento: XXXIX Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2021)

Keywords:

Abstract

LTE stands for Long Term Evolution, the fourth generation (4G) mobile network standard. It brought new techniques, from resource management algorithms to increasing bandwidth. While 5G is not deployed, the demand for resources grows, which motivates studies for new implementations. LTE operates on licensed bands within the spectrum, while Wi-Fi makes use of public bands. It is in this context that the theme of the coexistence of Wi-Fi and LTE networks arises. The technologies for network coexistence most well-known are Licensed-Assisted Access (LAA) and LTE-Unlicensed (LTE-U). In this paper, comparative results between the LAA and LTE-U standards will be presented, aimed at impacts caused on users of the Wi-Fi network during the sharing of the 5 GHz frequency. Results show that the fair access method for sharing the public frequency of the spectrum used on LAA decreases around 58% the impact on users of the Wi-Fi network.

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