In this paper, we propose a contention mechanism based on the execution of multiple contention rounds in the frequency domain (ReCHo), which is designed to offer high throughput performance and robustness with respect to imperfect carrier sensing. The main idea is using narrow tones as signalling messages for performing channel access contentions and allowing the Access Point (AP) to echo these signals, in order to extend the sensing capabilities to all the stations associated to the AP. In particular, we refer to the emerging IEEE 802.11ax standard, showing how our scheme can boost performance of random access with respect to the current version of IEEE 802.11ax OFDMA Back-Off (OBO), even when hidden node probability is very high.

Baiocchi A., Garlisi D., Santaromita G., & Tinnirello I. (2019). Moving RTS/CTS to the Frequency Domain: An Efficient Contention Scheme for 802.11ax Networks. In Proceedings of the 31st International Teletraffic Congress, ITC 2019 (pp. 140-148). Institute of Electrical and Electronics Engineers Inc. [10.1109/ITC31.2019.00031].

Moving RTS/CTS to the Frequency Domain: An Efficient Contention Scheme for 802.11ax Networks

Garlisi D.;Santaromita G.;Tinnirello I.
2019

Abstract

In this paper, we propose a contention mechanism based on the execution of multiple contention rounds in the frequency domain (ReCHo), which is designed to offer high throughput performance and robustness with respect to imperfect carrier sensing. The main idea is using narrow tones as signalling messages for performing channel access contentions and allowing the Access Point (AP) to echo these signals, in order to extend the sensing capabilities to all the stations associated to the AP. In particular, we refer to the emerging IEEE 802.11ax standard, showing how our scheme can boost performance of random access with respect to the current version of IEEE 802.11ax OFDMA Back-Off (OBO), even when hidden node probability is very high.
Settore ING-INF/03 - Telecomunicazioni
978-0-9883045-7-4
Baiocchi A., Garlisi D., Santaromita G., & Tinnirello I. (2019). Moving RTS/CTS to the Frequency Domain: An Efficient Contention Scheme for 802.11ax Networks. In Proceedings of the 31st International Teletraffic Congress, ITC 2019 (pp. 140-148). Institute of Electrical and Electronics Engineers Inc. [10.1109/ITC31.2019.00031].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/410938
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