OFDM for Terahertz Wireless Communication Systems
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carriers, time or frequency equalization techniques must be used, and we have tried
to highlight some characteristic points of these techniques. Thus, we have described
the advantages and disadvantages of OFDM modulation, which we have answered
in the last parts of this chapter and in the next chapter. Then, we described the
THz channel. We have optimized high-speed data transmission over such a channel.
Thus, we were able to reach a BER of 10-4 without coding for SNR less than 18 dB.
Consequently, the OFDM modulation seems more robust in the face of ISIs caused
by multi-path propagation phenomena THz communication system.
Others’ solutions can be used to reduce BER in THz communication system
such as MIMO technique which is an effective method to increase capacity in radio
communication system.
References
1. H.J. Song, Present and future of terahertz communications. IEEE Trans. Terahertz Sci. Technol.
1(1), 256–263 (2011). https://doi.org/10.1109/TTHZ.2011.2159552
2. C. Han, A. Bicen, I. Akyildiz, Multi-wideband waveform design for distance-adaptive wireless
communications in the terahertz band. IEEE Trans. Signal Process. 64(4), 910–922 (2015).
https://doi.org/10.1109/TSP.2015.2498133
3. V. Petrov, A. Pyattaev, D. Moltchanov, Y. Koucheryavy, Terahertz band communications: applications, research challenges, and standardization activities, in 8th International Congress on
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), Lisbon,
Portugal, Oct. 2016
4. I. Akyildiz, J. Jornet, C. Han, Terahertz band: next frontier for wireless communications. Phys.
Commun. (2014). https://doi.org/10.1016/j.phycom.2014.01.006
5. T. Kürner, S. Priebe, Towards THz communications—status in research, standardization and
regulation. J. Infrared Milli Terahz Waves 35, 53–62 (2014). https://doi.org/10.1007/s10762013-0014-3
6. M. El Ghzaoui, S. Das, Data transmission with terahertz communication systems, in Book:
Emerging Trends in Terahertz Solid-State Physics and Devices, pp. 121–141. Springer,
Singapore (2020). https://doi.org/10.1007/978-981-15-3235-1_9
7. H. Yuan, N. Yang, K. Yang, C. Han, J. An, Hybrid Beamforming for MIMO-OFDM Terahertz
Wireless Systems over Frequency Selective Channels, pp. 1–6 (2018). https://doi.org/10.1109/
glocom.2018.8647835
8. D. Asiedu, R. Ahiadormey, S. Shin, K.-J. Lee, Performance comparison of single-carrier and
multi-carrier systems in a terahertz wireless communication environment. J. Adv. Information
Technol. Convergence 9, 11–24 (2019). https://doi.org/10.14801/jaitc.2019.9.1.11
9. J. Mestoui, M. El Ghzaoui, M. Fattah, et al.: Performance analysis of CE-OFDM-CPM modulation using MIMO system over wireless channel. J. Ambient Intell Human Comput. (2019).
https://doi.org/10.1007/s12652-019-01628-0
10. R. Van Nee, P. Ramjee, OFDM for Wireless Multimedia Communications. Artech House
Publishers (2000)
11. N. Benvenuto, S. Tomasin, L. Tomba, et at., Equalization methods in OFDM and FMT systems
for broadband wireless communications. IEEE Trans. Commun. 50(9), 1413–1418, September
2002. https://doi.org/10.1109/tcomm.2002.802571
12. E.P. Lawreybe, Adaptative Techniques for Multiuser OFDM. Ph.D. Thesis, Jam Cook
University, Townsville (2001)
13. M. Jamal, G. El Mohammed, H. Abdelmounim, F. Jaouad, BER performance improvement
in CE-OFDM-CPM system using equalization techniques over frequency-selective channel.
Proc. Comput. Sci. 151, 1016–1021 (2019). https://doi.org/10.1016/j.procs.2019.04.143
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