The problem of Wi-Fi and LTE coexistence has been significantly debated in the last years, with the emergence of LTE extensions enabling the utilization of unlicensed spectrum for carrier aggregation. Rather than focusing on the problem of resource sharing between the two technologies, in this paper, we study the effects of LTE’s structured transmissions on the Wi-Fi random access protocol. We show how the scheduling of periodic LTE transmissions modifies the behavior of 802.11’s distributed coordination function (DCF), leading to a degradation of Wi-Fi performance, both in terms of channel utilization efficiency and in terms of channel access fairness. We also discuss the applicability and limitations of a persistent DCF model in analyzing Wi-Fi performance under periodic LTE interference.

Tinnirello, I., Gallo, P., Szott, S., & Kosek-Szott, K. (2019). Impact of LTE’s Periodic Interference on Heterogeneous Wi-Fi Transmissions. IEEE COMMUNICATIONS LETTERS, 23(2), 342-345 [10.1109/LCOMM.2018.2886902].

Impact of LTE’s Periodic Interference on Heterogeneous Wi-Fi Transmissions

Tinnirello, Ilenia;Gallo, Pierluigi;
2019

Abstract

The problem of Wi-Fi and LTE coexistence has been significantly debated in the last years, with the emergence of LTE extensions enabling the utilization of unlicensed spectrum for carrier aggregation. Rather than focusing on the problem of resource sharing between the two technologies, in this paper, we study the effects of LTE’s structured transmissions on the Wi-Fi random access protocol. We show how the scheduling of periodic LTE transmissions modifies the behavior of 802.11’s distributed coordination function (DCF), leading to a degradation of Wi-Fi performance, both in terms of channel utilization efficiency and in terms of channel access fairness. We also discuss the applicability and limitations of a persistent DCF model in analyzing Wi-Fi performance under periodic LTE interference.
Settore ING-INF/03 - Telecomunicazioni
Tinnirello, I., Gallo, P., Szott, S., & Kosek-Szott, K. (2019). Impact of LTE’s Periodic Interference on Heterogeneous Wi-Fi Transmissions. IEEE COMMUNICATIONS LETTERS, 23(2), 342-345 [10.1109/LCOMM.2018.2886902].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/344424
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