Performance Analysis of Improved Subcarrier Index Modulation OFDM Using a Novel Decision Rule over AWGN Link

Max Fréjus Owolabi SANYA, Fifamè Merci-Ange MAGNIDET

Abstract


Subcarrier Index Modulation Orthogonal Frequency Division Multiplexing (SIM-OFDM) is a modulation technique that extends information transmission beyond conventional subcarriers, incorporating their presence or absence. However, inaccurate determination of subcarrier status at the receiver can result in a high Bit Error Rate (BER). In response, this paper introduces an enhanced version named Improved SIM-OFDM (iSIM-OFDM). iSIM-OFDM employs a novel decision rule based on the summation of absolute values of the real and imaginary parts of each received symbol. Through simulations conducted over an Additive White Gaussian Noise (AWGN) link using Python, we performed a comparative study with conventional SIM-OFDM, specifically focusing on the electrical energy-per-bit per noise ratio Eb⁄N0 for various constellation sizes. The results reveal that iSIM-OFDM outperforms conventional SIM-OFDM in terms of BER performance, achieving a maximum gain in Eb⁄N0 of up to 2dB. This improvement is followed by the added advantage of reduced computational complexity while maintaining equivalent spectral efficiency. Furthermore, in the context of Power Reallocation Policy (PRP) versus Power Saving Policy (PSP), iSIM-OFDM achieves a gain of approximately 3 dB in Eb⁄N0 with PRP. Additionally, iSIM-OFDM demonstrates similar BER performance in PRP policy with only half the transmitted power compared to PSP policy. Considering these aspects, iSIM-OFDM emerges as a robust candidate in wireless communication fields where energy constraints are stringent, and rapid computational processing is imperative.

Keywords


SIM-OFDM; AWGN; Power Saving Policy; Power Reallocation Policy; Spectral efficiency; BER; Computational complexity

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References


Y. Huleihel and H.H. Permuter, "Low PAPR MIMO-OFDM Design Based on Convolutional Autoencoder," IEEE Transactions on Communications, January 2024.

A.S.M.M. Jameel, A. Malhotra, A.E. Gamal and S. Hamidi-Rad, "Deep OFDM Channel Estimation: Capturing Frequency Recurrence," IEEE Communications Letters, January 2024.

W.-W. Hu, "Enhanced Performance of Asymmetrically Clipped DC-Biased Optical OFDM Systems Using Adjacent Symbol Detection," IEEE Photonics Journal, vol. 15, no. 6, pp. 1-7, December 2023.

W.-W. Hu, "An Energy-Efficient ADO-OFDM System for Optical Wireless Communication," IEEE Photonics Journal, vol. 15, no. 6, pp. 1-9, December 2023.

D. Kumar, N.P Singh, Gaurav Verma, Multiple Access Schemes for 5G and Beyond Wireless Networks. 5G and Beyond Wireless Networks, CRC Press, 2024.

R. Abu-alhiga and H. Haas, "Subcarrier-index modulation OFDM," IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, 2009, pp. 177-181, April 2010.

O.H.A. Jan, D. Sandel, K. Puntsri, A. Al-Bermani, M. El-Darawy and R. Noé, "The robustness of subcarrier-index modulation in 16-QAM CO-OFDM system with 1024-point FFT," Opt. Express 20, pp. 28963-28968, 2012.

D. Tsonev, S. Sinanovic and H. Haas, "Enhanced subcarrier index modulation (SIM) OFDM," IEEE GLOBECOM Workshops (GC Wkshps), Houston, TX, USA, 2011, pp. 728-732.

Q. He and A. Schmeink, "A Better Decision Rule for OFDM with Subcarrier Index Modulation," WSA 2017; 21th International ITG Workshop on Smart Antennas, Berlin, Germany, 2017, pp. 1-4, June 2017.

J.R. Hasan and N.A. Hikmat, “Comparative study of selected subcarrier index modulation OFDM schemes.” TELKOMNIKA, Yogyakarta Vol. 17, Iss. 1, pp. 15-22, February 2019.

N. Ishikawa, S. Sugiura and L. Hanzo, "Subcarrier-Index Modulation Aided OFDM - Will It Work?," IEEE Access, vol. 4, pp. 2580-2593, May 2016.

Z. Sun, P. Yan, X. Ning and C. Deng, "Performance Analysis of Index Bit Errors Rate of SIM-OFDM on AWGN Channels," IEEE 18th International Conference on Communication Technology (ICCT), Chongqing, China, pp. 41-45, January 2019.

Q. Wang, G. Dou, X. He, R. Deng and J. Gao, "Novel OFDM System Using Data-Nulling Superimposed Pilots With Subcarrier Index Modulation," IEEE Communications Letters, vol. 22, no. 10, pp. 2164-2167, Oct. 2018.

H. Zhu, W. Wang, Q. Huang and X. Gao, "Subcarrier Index Modulation OFDM for multiuser MIMO systems with iterative detection," IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Valencia, Spain, pp. 1-6, December 2016.

R. Guan, W. Xu, Z. Yang, N. Huang, J.-Y. Wang and M. Chen, "Enhanced subcarrier-index modulation-based asymmetrically clipped optical OFDM using even subcarriers," Optics Communications, Vol. 402, pp. 600-605, July 2017.

T. Tang, X. Zou, P. Li, W. Pan, B. Luo and L. Yan, "Proposal and Demonstration of Subcarrier Index Modulation OFDM for RoF System With Enhanced Spectral Efficiency," Journal of Lightwave Technology, vol. 36, no. 19, pp. 4501-4506, October 2018.

C. Chen, X. Deng, Y. Yang, P. Du, H. Yang and W. -D. Zhong, "Experimental Demonstration of Optical OFDM with Subcarrier Index Modulation for IM/DD VLC," Asia Communications and Photonics Conference (ACP), Chengdu, China, pp. 1-3, February 2020.

Q. Tang, J. He and Z. Zhou, "Experimental Research on subcarrier index power modulation OFDM for visible light communication system," Association for Computing Machinery, New York, NY, USA, pp. 323–328, June 2021.

H. Zhang, L.-L. Yang and L. Hanzo, "Compressed Sensing Improves the Performance of Subcarrier Index-Modulation-Assisted OFDM," IEEE Access, vol. 4, pp. 7859-7873, October 2016.

S. Mishra and A. Agarwal, "Peak to average power ratio reduction in sub-carrier Index modulated OFDM using selective mapping," International Conference on Computer, Communications and Electronics (Comptelix), Jaipur, India, 2017, pp. 168-171, August 2017.

A.N. Jabbar, S.J. Almuraab and A.A. Kadhim, “Upgrading SIM–OFDM Using a Threshold for Correct Operation with Analytical Proofs,” Journal of Communications Software and Systems, Vol. 19, no. 4, pp 44-253.

F. Khan, F. Umrani, A. Baqai and M. Ijaz, “A Novel Double-Sided Pulse Interval Modulation (DS-PIM) Aided SIM-OFDM for 6G Light Fidelity (LiFi) Networks," Electronics, Vol.11, no. 21, 3579, November 2022.

M. Irfan, O.D. Saputra and S.Y. Shin, “SubCarrier Index-QAM, A New Hybrid Modulation Scheme for OFDM.” 3rd International Conference on Industrial Application Engineering (ICIAE), pp. 74-77, 2015.

J.M. Hamamreh, A. Hajar and M. Abewa, “Orthogonal frequency division multiplexing with subcarrier power modulation for doubling the spectral efficiency of 6G and beyond networks," Trans Emerging Tel Tech., Vol. 31, no. 4/e3921, March 2020.

I. Sengupta and S. Dasgupta, “Reduced Subcarrier Index Modulation Scheme in OFDM System for Next-Gen Wireless Networks," Das, N.R., Sarkar, S. (eds) Computers and Devices for Communication. CODEC 2019. Lecture Notes in Networks and Systems, vol 147. Springer, Singapore, February 2021.

M.S. Sarwar, M. Ahmad and S.Y. Shin, "Subcarrier Index Modulation for Spectral Efficient Frequency Division Multiplexing in Multi-Input Multi-Output Channels," IEEE Transactions on Vehicular Technology, vol. 72, no. 2, pp. 2678-2683, February 2023.

P. Chaki, T. Ishihara and S. Sugiura, "Precoded Filterbank Multicarrier Index Modulation With Non-Orthogonal Subcarrier Spacing," IEEE Transactions on Communications, vol. 71, no. 2, pp. 700-713, February 2023.

M.I. Kadir, H. Zhang, S. Chen and L. Hanzo, "Entropy Coding Aided Adaptive Subcarrier-Index Modulated OFDM," IEEE Access, vol. 6, pp. 7739-7752, February 2018.

S.S. Mi, A. Siriwanitpong, P. Boonsrimuang and P. Boonsrimuang, "Channel Estimation for Enhanced Subcarrier Index Modulation OFDM Using Zadoff-Chu Sequence Pilot in Nonlinear Channel," 19th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Prachuap Khiri Khan, Thailand, pp. 1-4, June 2022.

E. Başar, Ü. Aygölü, E. Panayırcı and H.V. Poor, "Orthogonal Frequency Division Multiplexing With Index Modulation," IEEE Transactions on Signal Processing, vol. 61, no. 22, pp. 5536-5549, November 2013.

S. Dang, G. Ma, B. Shihada and M.-S. Alouini, "Enhanced Orthogonal Frequency-Division Multiplexing With Subcarrier Number Modulation," IEEE Internet of Things Journal, vol. 6, no. 5, pp. 7907-7920, October 2019.

Python. [Online]. Available: https://www.python.org/, accessed February 2024.

Anaconda. [Online]. Available: https://www.anaconda.com/download, accessed February 2024.




DOI: http://dx.doi.org/10.52155/ijpsat.v42.2.5996

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