Cognitive Radio Network Assisted by OFDM with Index Modulation

Jun Li; Yuyang Peng; Yier Yan; Xue-Qin Jiang; Han Hai; Moshe Zukerman

doi:10.1109/TVT.2019.2951606

Cognitive Radio Network Assisted by OFDM with Index Modulation

Jun Li
, Yuyang Peng^*
, Yier Yan
, Xue-Qin Jiang
, Han Hai
, Moshe Zukerman

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

44 Citations (Scopus)

65 Downloads (CityUHK Scholars)

Abstract

Orthogonal frequency division multiplexing with index modulation (OFDM-IM) transmits additional information bits through the indices of active subcarriers. In this paper, we explore the potential of an improvement of OFDM-IM by reusing inactive subcarriers to transmit signals for a secondary system. We consider a cognitive radio network assisted by OFDM-IM, where the primary user (PU) transmits its signal to the primary receiver, and the secondary user (SU) senses the idle spectrum and transmits its own signal to the secondary receiver via those idle subcarriers. By either combining the signal transmitted from SU or not, we propose two different detection strategies with different trade-offs between the computational complexity and system performance. An asymptotically tight upper bound on the bit error rate is derived to evaluate the error performance.

Original language	English
Article number	8891788
Pages (from-to)	1106-1110
Number of pages	5
Journal	IEEE Transactions on Vehicular Technology
Volume	69
Issue number	1
Online published	5 Nov 2019
DOIs	https://doi.org/10.1109/TVT.2019.2951606
Publication status	Published - Jan 2020

Funding

Manuscript received June 19, 2019; revised September 20, 2019; accepted October 27, 2019. Date of publication November 5, 2019; date of current version January 15, 2020. This work was supported in part by the National Nature Science Foundation of China under Grants 61701127, 61671143, and 61801106, in part by FRG-19-019-FI and Grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (CityU 11200318). The review of this article was coordinated by Dr R. D. Souza. (Corresponding author: Yuyang Peng.) J. Li and Y. Yan are with the School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China (e-mail: [email protected]; [email protected]).

Research Keywords

bit error rate
cognitive radio
Index modulation
OFDM

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title = "Cognitive Radio Network Assisted by OFDM with Index Modulation",

abstract = "Orthogonal frequency division multiplexing with index modulation (OFDM-IM) transmits additional information bits through the indices of active subcarriers. In this paper, we explore the potential of an improvement of OFDM-IM by reusing inactive subcarriers to transmit signals for a secondary system. We consider a cognitive radio network assisted by OFDM-IM, where the primary user (PU) transmits its signal to the primary receiver, and the secondary user (SU) senses the idle spectrum and transmits its own signal to the secondary receiver via those idle subcarriers. By either combining the signal transmitted from SU or not, we propose two different detection strategies with different trade-offs between the computational complexity and system performance. An asymptotically tight upper bound on the bit error rate is derived to evaluate the error performance.",

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AU - Zukerman, Moshe

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N2 - Orthogonal frequency division multiplexing with index modulation (OFDM-IM) transmits additional information bits through the indices of active subcarriers. In this paper, we explore the potential of an improvement of OFDM-IM by reusing inactive subcarriers to transmit signals for a secondary system. We consider a cognitive radio network assisted by OFDM-IM, where the primary user (PU) transmits its signal to the primary receiver, and the secondary user (SU) senses the idle spectrum and transmits its own signal to the secondary receiver via those idle subcarriers. By either combining the signal transmitted from SU or not, we propose two different detection strategies with different trade-offs between the computational complexity and system performance. An asymptotically tight upper bound on the bit error rate is derived to evaluate the error performance.

AB - Orthogonal frequency division multiplexing with index modulation (OFDM-IM) transmits additional information bits through the indices of active subcarriers. In this paper, we explore the potential of an improvement of OFDM-IM by reusing inactive subcarriers to transmit signals for a secondary system. We consider a cognitive radio network assisted by OFDM-IM, where the primary user (PU) transmits its signal to the primary receiver, and the secondary user (SU) senses the idle spectrum and transmits its own signal to the secondary receiver via those idle subcarriers. By either combining the signal transmitted from SU or not, we propose two different detection strategies with different trade-offs between the computational complexity and system performance. An asymptotically tight upper bound on the bit error rate is derived to evaluate the error performance.

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Cognitive Radio Network Assisted by OFDM with Index Modulation

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GRF: Efficient Design of Elastic and WDM Optical Networks Meeting VNE Demands and Their Service Requirements

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Cognitive Radio Network Assisted by OFDM with Index Modulation

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GRF: Efficient Design of Elastic and WDM Optical Networks Meeting VNE Demands and Their Service Requirements

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