We propose an optimal power allocation scheme that maximizes the transmission rate of device-to-device (D2D) communications underlaying a cellular system based on orthogonal frequency division multiplexing (OFDM). The proposed algorithm first calculates the maximum allowed transmission power of a D2D transmitter to restrict the interference caused to a cellular link that share the same OFDM subchannels with the D2D link. Then, with a constraint on the maximum transmit power, an optimization of water-filling type is performed to find the optimal transmit power allocation across subchannels and within each subchannel. The performance of the proposed power allocation scheme is evaluated in terms of the average achievable rate of the D2D link.
Gil-Mo KANG
Soongsil University
Cheolsoo PARK
Kwangwoon University
Oh-Soon SHIN
Soongsil University
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Gil-Mo KANG, Cheolsoo PARK, Oh-Soon SHIN, "An Optimal Power Allocation Scheme for Device-to-Device Communications in a Cellular OFDM System" in IEICE TRANSACTIONS on Fundamentals,
vol. E103-A, no. 12, pp. 1670-1673, December 2020, doi: 10.1587/transfun.2020EAL2014.
Abstract: We propose an optimal power allocation scheme that maximizes the transmission rate of device-to-device (D2D) communications underlaying a cellular system based on orthogonal frequency division multiplexing (OFDM). The proposed algorithm first calculates the maximum allowed transmission power of a D2D transmitter to restrict the interference caused to a cellular link that share the same OFDM subchannels with the D2D link. Then, with a constraint on the maximum transmit power, an optimization of water-filling type is performed to find the optimal transmit power allocation across subchannels and within each subchannel. The performance of the proposed power allocation scheme is evaluated in terms of the average achievable rate of the D2D link.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAL2014/_p
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@ARTICLE{e103-a_12_1670,
author={Gil-Mo KANG, Cheolsoo PARK, Oh-Soon SHIN, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Optimal Power Allocation Scheme for Device-to-Device Communications in a Cellular OFDM System},
year={2020},
volume={E103-A},
number={12},
pages={1670-1673},
abstract={We propose an optimal power allocation scheme that maximizes the transmission rate of device-to-device (D2D) communications underlaying a cellular system based on orthogonal frequency division multiplexing (OFDM). The proposed algorithm first calculates the maximum allowed transmission power of a D2D transmitter to restrict the interference caused to a cellular link that share the same OFDM subchannels with the D2D link. Then, with a constraint on the maximum transmit power, an optimization of water-filling type is performed to find the optimal transmit power allocation across subchannels and within each subchannel. The performance of the proposed power allocation scheme is evaluated in terms of the average achievable rate of the D2D link.},
keywords={},
doi={10.1587/transfun.2020EAL2014},
ISSN={1745-1337},
month={December},}
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TY - JOUR
TI - An Optimal Power Allocation Scheme for Device-to-Device Communications in a Cellular OFDM System
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1670
EP - 1673
AU - Gil-Mo KANG
AU - Cheolsoo PARK
AU - Oh-Soon SHIN
PY - 2020
DO - 10.1587/transfun.2020EAL2014
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E103-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2020
AB - We propose an optimal power allocation scheme that maximizes the transmission rate of device-to-device (D2D) communications underlaying a cellular system based on orthogonal frequency division multiplexing (OFDM). The proposed algorithm first calculates the maximum allowed transmission power of a D2D transmitter to restrict the interference caused to a cellular link that share the same OFDM subchannels with the D2D link. Then, with a constraint on the maximum transmit power, an optimization of water-filling type is performed to find the optimal transmit power allocation across subchannels and within each subchannel. The performance of the proposed power allocation scheme is evaluated in terms of the average achievable rate of the D2D link.
ER -