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v.17(2); 2017 February
Sensors (Basel). 2017 February; 17(2): 380.
Published online 2017 February 16.
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© 2017 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Two-tier macro-femto networks architecture.
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