NDLI: Power control under best response dynamics for interference mitigation in a two-tier femtocell network

Content Provider	IEEE Xplore Digital Library
Author	Douros, Vaggelis G. Toumpis, Stavros Polyzos, George C.
Copyright Year	2012
Description	Author affiliation: Mobile Multimedia Laboratory, Department of Informatics, Athens University of Economics and Business, Patision 76, 10434, Greece (Douros, Vaggelis G.; Toumpis, Stavros; Polyzos, George C.)
Abstract	Femtocell networks are about to be extensively deployed with the aim of providing substantial improvements to cellular coverage and capacity. However, their deployment is nontrivial because of the extra interference that the femtocell nodes cause to the macrocell nodes with which they share the same portion of the spectrum. This paper proposes a non-cooperative power control approach for interference mitigation in a two-tier femtocell network where the first tier is a conventional cellular network and the second tier is a set of (short-range) femtocells. We define objective functions that are different for Femtocell Mobile Nodes (FMNs) and macrocell Mobile Nodes (MNs). We then define a power control game, we prove the existence of a Nash Equilibrium (NE) for that game and we analyze the necessary and sufficient conditions so that the NE is unique. Based on the best response dynamics method, we propose a distributed iterative power control scheme that, starting from any initial power vector, converges to that NE. We simulate various scenarios that are based on realistic assumptions and topologies. Results show that, in many cases, in the NE, smooth coexistence of all entities of the topology is feasible.
Starting Page	398
Ending Page	405
File Size	395015
Page Count	8
File Format	PDF
ISBN	9781467322942
e-ISBN	9783901882456
e-ISBN	9783901882470
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-14
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	IFIP
Subject Keyword	Macrocell networks Femtocell networks Power control Games Interference Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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