NDLI: Spatial reuse in spectrum sharing: A Matrix Spatial Congestion Games approach

Content Provider	IEEE Xplore Digital Library
Author	Kai Zhou Gaofei Sun Xinbing Wang Zhiyong Feng
Copyright Year	2012
Description	Author affiliation: Key Lab. of Universal Wireless Commun., Beijing University of Posts and Telecommunications, Beijing, China (Zhiyong Feng) \|\| Dept. of EE, Shanghai Jiaotong University, Shanghai, China (Kai Zhou; Gaofei Sun; Xinbing Wang)
Abstract	Congestion games, with the nice property that simple dynamics are guaranteed to converge to Nash equilibrium, have been widely used as models for many resource sharing scenarios. However, an obvious limitation of the congestion games is that they fail to capture a key feature of wireless networks: spatial reuse. That is, users separated far away enough can access the same channels without interference. In this paper, in order to take spatial reuse into account, we extend the congestion games to Matrix Spatial Congestion Games (MSCG) where we let the interference level vary from user to user. What's more, we consider a situation where users are able to access multiple channels at a time. The main aim of this paper is to investigate under what conditions this new model still has the finite improvement property (FIP), which guarantees that a pure Nash Equilibrium (PNE) always exists. In terms of payoff functions we category MSCG into four types. And we have proved that FIP holds for two types, that are MSCG with non-resource-specific and non-user-specific payoff functions and MSCG with non-resource-specific and user-specific payoff functions. For the other two types, we show that FIP does not hold.
Starting Page	185
Ending Page	190
File Size	152944
Page Count	6
File Format	PDF
ISBN	9781467328142
e-ISBN	9781467328159
e-ISBN	9781467328135
DOI	10.1109/ICCChina.2012.6356875
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Games Interference Nash equilibrium Educational institutions Resource management Convergence
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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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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