Impact of Packet Arrivals on Wi-Fi and Cellular System Sharing Unlicensed Spectrum

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We investigate the coexistence performance of Wi-Fi and cellular systems under an unlicensed spectrum sharing environment. For this, we provide a mathematical framework based on queuing theory depicting the time-domain behaviors of a Wi-Fi access point (AP) and a cellular small-cell base station (SCBS) under unlicensed spectrum sharing. Based on the proposed framework, we make an analysis of the delay performance of both systems with respect to the changes in their packet arrival rates. Through the analysis, we identify the maximum allowable packet arrival rates of both systems, under which the required Wi-Fi delay performance is achieved without spectrum etiquette for coexistence at the cellular SCBS, such as carrier-sensing adaptive transmission. This will serve as a guideline for the cellular SCBS on when it needs to employ the spectrum etiquette.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2016-12
Language
English
Article Type
Article
Keywords

NETWORKS; LTE; COEXISTENCE

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.65, no.12, pp.10204 - 10208

ISSN
0018-9545
DOI
10.1109/TVT.2016.2542267
URI
http://hdl.handle.net/10203/220399
Appears in Collection
EE-Journal Papers(저널논문)
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