NDLI: Coexistence of WiFi and LTE in unlicensed bands: A proportional fair allocation scheme

Content Provider	IEEE Xplore Digital Library
Author	Cano, C. Leith, D.J.
Copyright Year	2015
Description	Author affiliation: Sch. of Comput. Sci. & Stat., Trinity Coll. Dublin, Dublin, Ireland (Cano, C.; Leith, D.J.)
Abstract	The use of the unlicensed spectrum by LTE networks (LTE-U or LAA-LTE) is being considered by mobile operators in order to satisfy increasing traffic demands and to make better use of the licensed spectrum. However, coexistence issues arise when LTE-U coverage overlaps with other technologies currently operating in unlicensed bands, in particular WiFi. Since LTE uses a TDMA/OFDMA scheduled approach, coexisting WiFi networks may face starvation if the channel is fully occupied by LTE-U transmissions. In this paper we derive a novel proportional fair allocation scheme that ensures fair coexistence between LTE-U and WiFi. Importantly, we find that the proportional fair allocation is qualitatively different from previously considered WiFi-only settings and that since the resulting allocation requires only quite limited knowledge of network parameters it is potentially easy to implement in practice, without the need for message-passing between heterogeneous networks.
Starting Page	2288
Ending Page	2293
File Size	197918
Page Count	6
File Format	PDF
e-ISBN	9781467363051
DOI	10.1109/ICCW.2015.7247522
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations Conferences coexistence Artificial neural networks LTE Unlicensed Throughput Optimization LAA-LTE LTE-U proportional fairness Resource management WiFi IEEE 802.11 Standard
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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