Optimizing the energy efficiency of OFDM with index modulation

Miaowen Wen; Xiang Cheng; Liuqing Yang

doi:10.1109/ICCS.2014.7024760

Optimizing the energy efficiency of OFDM with index modulation

Miaowen Wen, Xiang Cheng, Liuqing Yang

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

46 Citations (Scopus)

Abstract

Spatial modulation (SM) is a promising single frequency-radio (RF) large-scale multiple-input multiple-output (MIMO) technique which can strike an attractive tradeoff between spectral efficiency (SE) and energy efficiency (EE) of a wireless network. Recently, a novel technique termed as orthogonal frequency division multiplexing with index modulation (OFDM-IM) emerges, where the SM principle is applied to OFDM subcarriers. It is revealed that OFDM-IM has the potential to outperform classical OFDM in terms of uncoded bit error rate (BER). In this paper, the EE of OFDM-IM with finite-alphabet input is analyzed from an information-theoretic perspective. Based on the analytical expression, the optimal strategy in maximizing the EE of OFDM-IM is proposed, which involves the optimal subcarrier grouping approach as well as the optimal selection of the number of active subcarriers. Monte-Carlo simulations validate the analysis.

Original language	English
Title of host publication	2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	31-35
Number of pages	5
ISBN (Electronic)	9781479958320
DOIs	https://doi.org/10.1109/ICCS.2014.7024760
Publication status	Published - 27 Jan 2014
Externally published	Yes
Event	2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014 - Macau, China Duration: 19 Nov 2014 → 21 Nov 2014

Publication series

Name	2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014

Conference

Conference	2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
Country/Territory	China
City	Macau
Period	19/11/14 → 21/11/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Wen, M., Cheng, X., & Yang, L. (2014). Optimizing the energy efficiency of OFDM with index modulation. In 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014 (pp. 31-35). Article 7024760 (2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCS.2014.7024760

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abstract = "Spatial modulation (SM) is a promising single frequency-radio (RF) large-scale multiple-input multiple-output (MIMO) technique which can strike an attractive tradeoff between spectral efficiency (SE) and energy efficiency (EE) of a wireless network. Recently, a novel technique termed as orthogonal frequency division multiplexing with index modulation (OFDM-IM) emerges, where the SM principle is applied to OFDM subcarriers. It is revealed that OFDM-IM has the potential to outperform classical OFDM in terms of uncoded bit error rate (BER). In this paper, the EE of OFDM-IM with finite-alphabet input is analyzed from an information-theoretic perspective. Based on the analytical expression, the optimal strategy in maximizing the EE of OFDM-IM is proposed, which involves the optimal subcarrier grouping approach as well as the optimal selection of the number of active subcarriers. Monte-Carlo simulations validate the analysis.",

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Wen, M, Cheng, X & Yang, L 2014, Optimizing the energy efficiency of OFDM with index modulation. in 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014., 7024760, 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014, Institute of Electrical and Electronics Engineers Inc., pp. 31-35, 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014, Macau, China, 19/11/14. https://doi.org/10.1109/ICCS.2014.7024760

Optimizing the energy efficiency of OFDM with index modulation. / Wen, Miaowen; Cheng, Xiang; Yang, Liuqing.
2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 31-35 7024760 (2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

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N2 - Spatial modulation (SM) is a promising single frequency-radio (RF) large-scale multiple-input multiple-output (MIMO) technique which can strike an attractive tradeoff between spectral efficiency (SE) and energy efficiency (EE) of a wireless network. Recently, a novel technique termed as orthogonal frequency division multiplexing with index modulation (OFDM-IM) emerges, where the SM principle is applied to OFDM subcarriers. It is revealed that OFDM-IM has the potential to outperform classical OFDM in terms of uncoded bit error rate (BER). In this paper, the EE of OFDM-IM with finite-alphabet input is analyzed from an information-theoretic perspective. Based on the analytical expression, the optimal strategy in maximizing the EE of OFDM-IM is proposed, which involves the optimal subcarrier grouping approach as well as the optimal selection of the number of active subcarriers. Monte-Carlo simulations validate the analysis.

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Optimizing the energy efficiency of OFDM with index modulation

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