Optimal subcarrier pairing for MRC in powerline/wireless diversity OFDM systems

Yu Suk Sung; Yong Hwa Kim; Illsoo Sohn; Seong Cheol Kim; Jong Ho Lee

doi:10.1016/j.epsr.2014.12.016

Optimal subcarrier pairing for MRC in powerline/wireless diversity OFDM systems

Yu Suk Sung, Yong Hwa Kim, Illsoo Sohn, Seong Cheol Kim, Jong Ho Lee

Dept. of Computer Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In this paper, we consider the parallel use of powerline/wireless orthogonal frequency division multiplexing (OFDM) systems for robust smart grid communication, where the powerline and wireless subcarriers are paired to perform maximal ratio combining (MRC). An optimal subcarrier pairing scheme is proposed to maximize the data rate for MRC reception in powerline/wireless diversity OFDM systems. We verify the performance enhancement of the proposed optimal subcarrier pairing scheme by varying the system and channel parameters. Numerical results show that the proposed scheme provides about 15-30 Mbps of higher data rate, which corresponds to a capacity gain of about 5-22%, compared to the pairing scheme without specific intelligence.

Original language	English
Pages (from-to)	200-206
Number of pages	7
Journal	Electric Power Systems Research
Volume	121
DOIs	https://doi.org/10.1016/j.epsr.2014.12.016
State	Published - Apr 2015

Keywords

Maximal ratio combining (MRC)
Orthogonal frequency-division multiplexing (OFDM)
Powerline/wireless diversity
Subcarrier pairing

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10.1016/j.epsr.2014.12.016

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title = "Optimal subcarrier pairing for MRC in powerline/wireless diversity OFDM systems",

abstract = "In this paper, we consider the parallel use of powerline/wireless orthogonal frequency division multiplexing (OFDM) systems for robust smart grid communication, where the powerline and wireless subcarriers are paired to perform maximal ratio combining (MRC). An optimal subcarrier pairing scheme is proposed to maximize the data rate for MRC reception in powerline/wireless diversity OFDM systems. We verify the performance enhancement of the proposed optimal subcarrier pairing scheme by varying the system and channel parameters. Numerical results show that the proposed scheme provides about 15-30 Mbps of higher data rate, which corresponds to a capacity gain of about 5-22\%, compared to the pairing scheme without specific intelligence.",

keywords = "Maximal ratio combining (MRC), Orthogonal frequency-division multiplexing (OFDM), Powerline/wireless diversity, Subcarrier pairing",

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T1 - Optimal subcarrier pairing for MRC in powerline/wireless diversity OFDM systems

AU - Sung, Yu Suk

AU - Kim, Yong Hwa

AU - Sohn, Illsoo

AU - Kim, Seong Cheol

AU - Lee, Jong Ho

PY - 2015/4

Y1 - 2015/4

N2 - In this paper, we consider the parallel use of powerline/wireless orthogonal frequency division multiplexing (OFDM) systems for robust smart grid communication, where the powerline and wireless subcarriers are paired to perform maximal ratio combining (MRC). An optimal subcarrier pairing scheme is proposed to maximize the data rate for MRC reception in powerline/wireless diversity OFDM systems. We verify the performance enhancement of the proposed optimal subcarrier pairing scheme by varying the system and channel parameters. Numerical results show that the proposed scheme provides about 15-30 Mbps of higher data rate, which corresponds to a capacity gain of about 5-22%, compared to the pairing scheme without specific intelligence.

AB - In this paper, we consider the parallel use of powerline/wireless orthogonal frequency division multiplexing (OFDM) systems for robust smart grid communication, where the powerline and wireless subcarriers are paired to perform maximal ratio combining (MRC). An optimal subcarrier pairing scheme is proposed to maximize the data rate for MRC reception in powerline/wireless diversity OFDM systems. We verify the performance enhancement of the proposed optimal subcarrier pairing scheme by varying the system and channel parameters. Numerical results show that the proposed scheme provides about 15-30 Mbps of higher data rate, which corresponds to a capacity gain of about 5-22%, compared to the pairing scheme without specific intelligence.

KW - Maximal ratio combining (MRC)

KW - Orthogonal frequency-division multiplexing (OFDM)

KW - Powerline/wireless diversity

KW - Subcarrier pairing

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DO - 10.1016/j.epsr.2014.12.016

M3 - Article

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SN - 0378-7796

VL - 121

SP - 200

EP - 206

JO - Electric Power Systems Research

JF - Electric Power Systems Research

ER -

Optimal subcarrier pairing for MRC in powerline/wireless diversity OFDM systems

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