Alamouti Space Time Coded Design for OFDMA Systems Based Layered FFT Structure

  • T. Deepa
  • R. Kumar
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 235)


Orthogonal Frequency-Division Multiple Access (OFDMA) is a multi-user orthogonal frequency-division multiplexing (OFDM) digital modulation scheme. Multiple accesses can be achieved in OFDMA by assigning subsets of subcarriers to individual users. This allows simultaneous low data rate transmission from several users. However, the OFDMA system exhibits high peak to average power ratio (PAPR) and introduce larger complexity by applying discrete Fourier transform (DFT) at the transmitter and inverse DFT (IDFT) at the receiver section. In this paper, we propose a space time block coding (STBC) for OFDMA based layered FFT structure, which provides better PAPR reduction property, low complexity in user terminals. The STBC scheme is also provide full diversity from both OFDMA signaling and STBC coding transmission.


D&C FFT algorithm OFDM PAPR Space Time Coding 


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  1. 1.
    Goldsmith, A.: Wireless Communications, 1st edn. Cambridge University Press, Stanford University (2005)Google Scholar
  2. 2.
    Alamouti, S.M.: A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications 16(8), 1451–1458 (1998), doi:10.1109/49.730453.CrossRefGoogle Scholar
  3. 3.
    Nee, R.V., Prasad, R.: OFDM wireless multimedia communications. Artech House, London (2000)Google Scholar
  4. 4.
    Zheng, X., Lau, F.C.M., Tse, C.K.: Performance evaluation of irregular low-density parity-check codes at high signal-to-noise ratio. IET Communications 5, 1587–1596 (2011)MathSciNetCrossRefGoogle Scholar
  5. 5.
    Murphy, C.D.: Low-complexity FFT structures for OFDM transceivers. IEEE Transactions on Communication 50, 1878–1881 (2002)CrossRefGoogle Scholar
  6. 6.
    Myung, H.G., Lim, J., Goodman, D.J.: Single carrier FDMA for uplink wireless transmission. IEEE Vehicular Technology Magazine 1(3), 30–38 (2006)CrossRefGoogle Scholar
  7. 7.
    Zhang, J., Luo, L., Shi, Z.: Quadrature OFDMA systems based on layered FFT structure. IEEE Transactions on Communications, 850–860 (2009)Google Scholar
  8. 8.
    Luo, L., Zhang, J., Shi, Z.: BER analysis for asymmetric OFDM systems. In: Proceedings of GLOBECOM 2008, New Orleans, La, USA, pp. 1–6 (November-December 2008)Google Scholar
  9. 9.
    Proakis, J.G.: Digital Communications, 4th edn. McGraw-Hill, NewYork (2001)Google Scholar
  10. 10.
    Barry, D.G.M.J.R., Lee, E.A.: Digital Communication, 3rd edn. Kluwer Academic Publishers (2003)Google Scholar
  11. 11.
    Costa, E., Pupolin, S.: M-QAM-OFDM System Performance in thePresence of a Nonlinear Amplifier and Phase Noise. IEEE Transactions on Communications, 462–472 (March 2002)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.SRM UniversityChennaiIndia

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