Advertisement

Performance of Linearly Modulated SIMO High Mobility Systems with Channel Estimation Errors

  • Mahamuda Alhaji MahamaduEmail author
  • Zheng Ma
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 262)

Abstract

This paper studies the error performance of linearly modulated single-input multiple-output (SIMO) high mobility communication systems with channel estimation errors. Channel estimation errors are unavoidable in high mobility systems, due to the rapid time-varying fading of the channel caused by severe Doppler effects, and this might have non-negligible adverse impacts on system performance. However, in high mobility communications, rapid time-varying fading channels induce Doppler diversity which can be exploited to improve system performance. Based on the statistical attributes of minimum mean square error (MMSE) channel estimation, a new optimum diversity receiver for MASK, MPSK and MQAM SIMO high mobility systems with channel estimation errors is proposed. The exact analytical error probability expressions of MPSK, MASK, and MQAM of the SIMO diversity receiver are identified and expressed as a unified expression. It quantifies the impacts of both Doppler diversity and channel estimation errors. The result is expressed as an explicit function of the channel temporal correlation, pilot and data signal-to-noise ratios (SNRs). Simulations results are used to validated analytical results. Simulation results show that MPSK, MASK, and MQAM systems have the same Doppler diversity order even though they differ in symbol error rates(SERs). Moreover, simulation results show that MQAM systems achieve better spectral efficiency than its MPSK and MASK counterparts.

Keywords

Single-input multiple-output (SIMO) systems High mobility wireless communications Doppler diversity MASK MPSK MQAM Channel estimation Minimum mean square error (MMSE) Channel estimation errors 

References

  1. 1.
    Wu, J., Fan, P.: A survey on high mobility wireless communications: Challenges, opportunities and solutions. IEEE Access 4, 450–476 (2016)CrossRefGoogle Scholar
  2. 2.
    Sayeed, A., Aazhang, B.: Joint multipath-Doppler diversity in mobile wireless communications. IEEE Trans. Commun. 47(1), 123–132 (1999)CrossRefGoogle Scholar
  3. 3.
    Wu, J.: Exploring maximum Doppler diversity by Doppler domain multiplexing. In: Proceedings of IEEE Global Telecommunication Conference, GLOBECOM 2006, pp. 1–5 (2006)Google Scholar
  4. 4.
    Ma, X., Giannakis, G.: Maximum-diversity transmissions over doubly selective wireless channels. IEEE Trans. Inf. Theory 49(7), 1832–1840 (2003)MathSciNetCrossRefGoogle Scholar
  5. 5.
    Zhou, W., Wu, J., Fan, P.: Maximizing Doppler diversity for high mobility systems with imperfecr channel state information. In: Proceedings of IEEE ICC, pp. 5920–5925 (2014)Google Scholar
  6. 6.
    Zhou, W., Wu, J., Fan, P.: Energy and spectral efficient Doppler diversity transmission in high mobility systems with imperfect channel estimation. EURASIP J. Wireless Commun. Netw. 140 (2015). http://jwcn.eurasipjournals.com/content/2015/1/140
  7. 7.
    Zhou, W., Wu, J., Fan, P.: On the maximum Doppler diversity of high mobility systems with imperfect channel state information. In: Proceeding of IEEE International Conference Communication ICC 2015 (2015)Google Scholar
  8. 8.
    Wu, J., Xiao, C.: Optimal diversity combining based on linear estimation of Rician fading channels. IEEE Trans. Commun. 56(10), 1612–1615 (2008)CrossRefGoogle Scholar
  9. 9.
    Wu, J., Xiao, C.: Optimal diversity combining based on linear estimation of Rician fading channels. IEEE Int. Conf. Commun. 56(10), 3999–4004 (2007)Google Scholar
  10. 10.
    Wu, J., Xiao, C.: Performance analysis of wireless systems with doubly selective rayloegh fading. IEEE Trans. Vech. Technol. 56(2), 721–730 (2007)CrossRefGoogle Scholar
  11. 11.
    Mahamadu, M.A., Wu, J., Ma, Z., Zhou, W., Fan, P.: Maximum diversity order of SIMO high mobility systems with imperfect channel state information. In: Proceedings of IEEE International Conference Communication Technology (ICCT) (2017)Google Scholar
  12. 12.
    Mahamadu, M.A., Wu, J., Ma, Z., Zhou, W., Tang, Y., Fan, P.: Fundamental tradeoff between doppler diversity and channel estimation errors in simo high mobility systems. IEEE Access 5, 21867–21878 (2018)CrossRefGoogle Scholar
  13. 13.
    Zhou, W., Wu, J., Fan, P.: High mobility wireless communications with doppler diversity: performance limit. IEEE Trans. Wireless Commun. 14(12), 6981–8992 (2015)CrossRefGoogle Scholar
  14. 14.
    Sun, N., Wu, J.: Maximizing spectral efficiency for high mobility systems with imperfect channel state information. IEEE Trans. Wireless Commun. 13(3), 1462–1470 (2014)CrossRefGoogle Scholar
  15. 15.
    Zheng, Z., Tse, D.N.C.: Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels. IEEE Trans. Inf. Theory 49(5), 1073–106 (2003)CrossRefGoogle Scholar

Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  1. 1.School of Information Science and TechnologySouthwest Jiaotong UniversityChengduChina
  2. 2.Council for Scientific and Industrial ResearchAccraGhana

Personalised recommendations