A game-theoretic approach for energy-efficient power control in spectrum sharing networks

Younggap Kwon, Taewon Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, we study energy-efficient power control for spectrum-sharing networks, where multiple systems of transmitting nodes share the same spectrum. In the spectrum sharing networks, reducing the transmit power of one system is always beneficial to the energy efficiencies (EEs) of the other systems. However, reducing the transmit power may not be always optimal in maximizing the EE of a system. These conflicting interests among the systems are molded by a non-cooperative energy-efficient power control game, where each system chooses its transmit power to maximize its own EE. We prove the existence and uniqueness of the Nash equilibrium of this game. However, due to the selfish behaviors of the systems in the network, the Nash equilibrium is in general inefficient. To improve the EE of the Nash equilibrium, we incorporate pricing to the non-cooperative energy-efficient power control game. For the spectrum sharing network consisting of two systems, we find a sufficient condition on the transmit powers of the systems assuring the pricing-based game to be a supermodular game, which always admits at least one Nash equilibrium.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Communications, ICC 2014
PublisherIEEE Computer Society
Pages3493-3498
Number of pages6
ISBN (Print)9781479920037
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 1st IEEE International Conference on Communications, ICC 2014 - Sydney, NSW, Australia
Duration: 2014 Jun 102014 Jun 14

Other

Other2014 1st IEEE International Conference on Communications, ICC 2014
CountryAustralia
CitySydney, NSW
Period14/6/1014/6/14

Fingerprint

Power control
Energy efficiency
Costs

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Kwon, Y., & Hwang, T. (2014). A game-theoretic approach for energy-efficient power control in spectrum sharing networks. In 2014 IEEE International Conference on Communications, ICC 2014 (pp. 3493-3498). [6883862] IEEE Computer Society. https://doi.org/10.1109/ICC.2014.6883862
Kwon, Younggap ; Hwang, Taewon. / A game-theoretic approach for energy-efficient power control in spectrum sharing networks. 2014 IEEE International Conference on Communications, ICC 2014. IEEE Computer Society, 2014. pp. 3493-3498
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Kwon, Y & Hwang, T 2014, A game-theoretic approach for energy-efficient power control in spectrum sharing networks. in 2014 IEEE International Conference on Communications, ICC 2014., 6883862, IEEE Computer Society, pp. 3493-3498, 2014 1st IEEE International Conference on Communications, ICC 2014, Sydney, NSW, Australia, 14/6/10. https://doi.org/10.1109/ICC.2014.6883862

A game-theoretic approach for energy-efficient power control in spectrum sharing networks. / Kwon, Younggap; Hwang, Taewon.

2014 IEEE International Conference on Communications, ICC 2014. IEEE Computer Society, 2014. p. 3493-3498 6883862.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kwon Y, Hwang T. A game-theoretic approach for energy-efficient power control in spectrum sharing networks. In 2014 IEEE International Conference on Communications, ICC 2014. IEEE Computer Society. 2014. p. 3493-3498. 6883862 https://doi.org/10.1109/ICC.2014.6883862