Coexistence of Wi-Fi and Cellular With Listen-Before-Talk in Unlicensed Spectrum

In this letter, we analyze the coexistence performance of Wi-Fi and cellular networks with different listen-before-talk (LBT) procedures in the unlicensed spectrum. For this analysis, the behavior of a cellular base station is modeled as a Markov chain that is combined with Bianchi's Markov mod...

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Veröffentlicht in:	IEEE communications letters 2016-01, Vol.20 (1), p.161-164
Hauptverfasser:	Song, Yujae, Sung, Ki Won, Han, Youngnam
Format:	Artikel
Sprache:	eng
Schlagworte:	Base stations Cellular Cellular communication Cellular small cells coexistence IEEE 802.11 Standard Interference Listen-Before- Talk (LBT) Markov models Markov processes Mathematical model Mathematical models Optimization Radiation detectors Radio equipment Stations Throughput unlicensed spectrum Wi-Fi Wireless networks
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Beschreibung
Zusammenfassung:	In this letter, we analyze the coexistence performance of Wi-Fi and cellular networks with different listen-before-talk (LBT) procedures in the unlicensed spectrum. For this analysis, the behavior of a cellular base station is modeled as a Markov chain that is combined with Bianchi's Markov model depicting the behavior of a Wi-Fi access point. The proposed mathematical framework finds the optimal contention window size of cellular base stations, which maximizes the total throughput of both networks while satisfying the required throughput of each network. Numerical results show the validity of adjustment in the parameter of LBT.
ISSN:	1089-7798 1558-2558 1558-2558
DOI:	10.1109/LCOMM.2015.2504509