140
M. El Ghzaoui and S. Das
8 Conclusion
In this chapter, a design of the THz system is presented. The choice of central
frequency is based on previous work in this area. Several techniques used for the
transmitter/receiver implementation relating to the THz technology node were discussed. Conventional modulation schemes such as OOK, QPSK, and BPSK were
analyzed to be applied for THz communication, and they show their viability for
millimeter-wave wireless communications system.
To achieve ultra-high-speed THz communications, we are mainly focusing on
coherence detection and MIMO processing. In this work, QPSK modulation with
incoherent receiver is supposed with AWGN. Also, BPSK modulation with coherent receiver is analyzed. To evaluate the performance of QPSK/BPSK modulation
for SISO and MIMO system under deferent values of roll-off factor, simulation
results of MRC receiver in MIMO wireless channels with Alamouti encoding at
THz frequencies were presented.
References
1. Attenuation by Atmospheric Gases, ITU-R Recommendation, pp. 676–678 (2009)
2. S. Weber, X. Yang, J.G. Andrews, G. Veciana, Transmission capacity of wireless ad hoc
networks with outage constraints. IEEE Trans. Inf. Theory 51(12), 4091–4102 (2005)
3. S. Weber, J.G. Andrews, N. Jindal, An overview of the transmission capacity of wireless
networks. IEEE Trans. Commun. 58(12), 3593–3604 (2010)
4. A. Hunter, J.G. Andrews, S. Weber, The transmission capacity of ad hoc networks with spatial
diversity. IEEE Trans. Wireless Commun. 7(12), 5058–5071 (2008)
5. E. Teletar, Capacity of multi-antenna Gaussian channels. Euro. Trans. Telecommun. 10(6),
585–595 (1999)
6. E. Biglieri et al., MIMO Wireless Communications (Cambridge University Press, Cambridge,
2007)
7. J. Federici, L. Moeller, Review of terahertz and subterahertz wireless communications. J. Appl.
Phys. 107, 111101–111101-22 (2010)
8. T. Kleine-Ostmann, T. Nagatsuma, A review on terahertz communications research. J. Infrared
Milli. Terhz. Waves 32, 143–171 (2011)
9. H.-J. Song, T. Nagatsuma, Present and future of terahertz communications. IEEE Trans.
Terahertz Sci. Technol. 1, 256–263 (2011)
10. T. Nagatsuma, S. Horiguchi, Y. Minamikata, Y. Yoshimizu, S. Hisatake, S. Kuwano, N. Yoshimoto, J. Terada, H. Takahashi, Terahertz communications based on photonics technologies.
Opt. Express 21, 23736–23747 (2013)
11. M. Urteaga, M. Seo, J. Hacker, Z. Griffith, A. Young, R. Pierson, P. Rowell, A. Skalare, M.J.W.
Rodwell, InP HBTs for THz frequency integrated circuits, in Proceedings of the 2011 IEEE
Indium Phosphide and Related Materials (Berlin, Germany, May 2011)
12. M. Seo, M. Urteaga, J. Hacker, A. Young, Z. Griffith, V. Jain, R. Pierson, P. Rowell, A. Skalare,
A. Peralta, R. Lin, D. Pukala, M. Rodwell, InP HBT IC technology for terahertz frequencies:
fundamental oscillators up to 0.57 THz. IEEE J. Solid-State Circuits 46(10), 2203–2214 (2011)
13. M. Seo, M. Urteaga, M. Rodwell, M.-J. Choe, A 300 GHz PLL in an InP HBT technology, in
2011 International Microwave Symposium Digest (MTT) (Baltimore, MD, June)
M. El Ghzaoui and S. Das
8 Conclusion
In this chapter, a design of the THz system is presented. The choice of central
frequency is based on previous work in this area. Several techniques used for the
transmitter/receiver implementation relating to the THz technology node were discussed. Conventional modulation schemes such as OOK, QPSK, and BPSK were
analyzed to be applied for THz communication, and they show their viability for
millimeter-wave wireless communications system.
To achieve ultra-high-speed THz communications, we are mainly focusing on
coherence detection and MIMO processing. In this work, QPSK modulation with
incoherent receiver is supposed with AWGN. Also, BPSK modulation with coherent receiver is analyzed. To evaluate the performance of QPSK/BPSK modulation
for SISO and MIMO system under deferent values of roll-off factor, simulation
results of MRC receiver in MIMO wireless channels with Alamouti encoding at
THz frequencies were presented.
References
1. Attenuation by Atmospheric Gases, ITU-R Recommendation, pp. 676–678 (2009)
2. S. Weber, X. Yang, J.G. Andrews, G. Veciana, Transmission capacity of wireless ad hoc
networks with outage constraints. IEEE Trans. Inf. Theory 51(12), 4091–4102 (2005)
3. S. Weber, J.G. Andrews, N. Jindal, An overview of the transmission capacity of wireless
networks. IEEE Trans. Commun. 58(12), 3593–3604 (2010)
4. A. Hunter, J.G. Andrews, S. Weber, The transmission capacity of ad hoc networks with spatial
diversity. IEEE Trans. Wireless Commun. 7(12), 5058–5071 (2008)
5. E. Teletar, Capacity of multi-antenna Gaussian channels. Euro. Trans. Telecommun. 10(6),
585–595 (1999)
6. E. Biglieri et al., MIMO Wireless Communications (Cambridge University Press, Cambridge,
2007)
7. J. Federici, L. Moeller, Review of terahertz and subterahertz wireless communications. J. Appl.
Phys. 107, 111101–111101-22 (2010)
8. T. Kleine-Ostmann, T. Nagatsuma, A review on terahertz communications research. J. Infrared
Milli. Terhz. Waves 32, 143–171 (2011)
9. H.-J. Song, T. Nagatsuma, Present and future of terahertz communications. IEEE Trans.
Terahertz Sci. Technol. 1, 256–263 (2011)
10. T. Nagatsuma, S. Horiguchi, Y. Minamikata, Y. Yoshimizu, S. Hisatake, S. Kuwano, N. Yoshimoto, J. Terada, H. Takahashi, Terahertz communications based on photonics technologies.
Opt. Express 21, 23736–23747 (2013)
11. M. Urteaga, M. Seo, J. Hacker, Z. Griffith, A. Young, R. Pierson, P. Rowell, A. Skalare, M.J.W.
Rodwell, InP HBTs for THz frequency integrated circuits, in Proceedings of the 2011 IEEE
Indium Phosphide and Related Materials (Berlin, Germany, May 2011)
12. M. Seo, M. Urteaga, J. Hacker, A. Young, Z. Griffith, V. Jain, R. Pierson, P. Rowell, A. Skalare,
A. Peralta, R. Lin, D. Pukala, M. Rodwell, InP HBT IC technology for terahertz frequencies:
fundamental oscillators up to 0.57 THz. IEEE J. Solid-State Circuits 46(10), 2203–2214 (2011)
13. M. Seo, M. Urteaga, M. Rodwell, M.-J. Choe, A 300 GHz PLL in an InP HBT technology, in
2011 International Microwave Symposium Digest (MTT) (Baltimore, MD, June)