Analysis of Energy Efficiency Considering Device-to-Device (D2D) Communications in Cellular Networks 


Vol. 38,  No. 7, pp. 571-579, Jul.  2013


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  Abstract

This paper proposes an energy-efficient mode selection and power allocation scheme in device-to-device (D2D) communication system as an underlay coexistence with cellular networks. We analyze the energy efficiency which is defined as the summation of the energy efficiencies for all devices. The proposed scheme consists of two steps. First, we calculate the transmission power maximizing the energy efficiency for all possible modes of each device. Although the proposed power cannot maximize the system capacity, we prove that the proposed transmission power is the optimal power which maximizes the energy efficiency. In the second step, we select a mode which has the maximal energy efficiency among all possible mode combinations of the devices. Then we can jointly obtain the transmission power and the mode which can maximize the energy efficiency. The proposed scheme has the optimal performance with respect to the energy efficiency and outperforms the conventional schemes.

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  Cite this article

[IEEE Style]

M. Jung and S. Choi, "Analysis of Energy Efficiency Considering Device-to-Device (D2D) Communications in Cellular Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 7, pp. 571-579, 2013. DOI: .

[ACM Style]

Minchae Jung and Sooyong Choi. 2013. Analysis of Energy Efficiency Considering Device-to-Device (D2D) Communications in Cellular Networks. The Journal of Korean Institute of Communications and Information Sciences, 38, 7, (2013), 571-579. DOI: .

[KICS Style]

Minchae Jung and Sooyong Choi, "Analysis of Energy Efficiency Considering Device-to-Device (D2D) Communications in Cellular Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 7, pp. 571-579, 7. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880