Journal
IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
Volume 4, Issue 4, Pages 735-748Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCCN.2018.2867032
Keywords
Fairness; Wi-Fi; LTE-LAA; 5GHz unlicensed band coexistence
Categories
Funding
- National Science Foundation (NSF) [1617153]
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [1617153] Funding Source: National Science Foundation
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With both small-cell LTE and 802.11 networks now available as alternatives for deployment in unlicensed bands at 5 GHz, investigation into their coexistence is a topic of great interest. ETSI Rel. 14 has standardized LTE licensed assisted access (LAA) that seeks to make LTE more coexistence friendly with Wi-Fi by incorporating listen before talk. However, the fairness of Wi-Fi and CFE-LAA sharing is a topic that has not been adequately explored. In this paper, we first investigate the 3GPP definition of fair coexistence via new analytical models. By tuning the LTE-LAA parameters, we exemplify scenarios when the 3GPP notion of fairness is achieved and conversely, when not achieved. The formal notions of access and proportional fairness is then considered for these scenarios to compare and contrast with the 3GPP definition.
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