Encyclopedia of Wireless Networks

Living Edition
| Editors: Xuemin (Sherman) Shen, Xiaodong Lin, Kuan Zhang

Cyclic Prefix-Free OFDM/OFDMA Systems, Design, and Implementation

  • Xiqing Liu
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-32903-1_72-1



CP-free OFDM/OFDMA system refers to an orthogonal frequency-division multiplexing (OFDM) system or an orthogonal frequency-division multiple access (OFDMA) system, without insertion of cyclic prefix (CP) at the transmitter.

History Background

With an increasing demand for a higher data rate, such as 5G, more bandwidths will be required, which makes transmit signals extremely sensitive to inter-symbol interference (ISI) in a multipath channel. Orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency-division multiple access (OFDMA), working as a multi-carrier transmission scheme, receives much attention due to its ability to combat ISI. A common approach to tackle ISI for an OFDM/OFDMA system is to insert a cyclic prefix (CP) at the beginning of every block before transmission. As long as the length of CP is made longer than channel delay spread, ISI...

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  1. 3GPP TS 36104 V1320 (2016) Evolved universal terrestrial radio Access (E-UTRA); base station (BS) radio transmission and reception (release 13). https://www.3gpp.org/
  2. Chen Z, Chang Y, Liu F, Zhou J, Yang D (2009) A turbo FDE technique for OFDM system without cyclic prefix. In: 2009 IEEE 70th vehicular technology conference fall, pp 1–5Google Scholar
  3. Commenges D, Monsion M (1984) Fast inversion of triangular toeplitz matrices. IEEE Trans Autom Control 29(3):250–251MathSciNetCrossRefGoogle Scholar
  4. Cooley JW, Tukey JW (1965) An algorithm for the machine calculation of complex fourier series. Math Comput 19(90):297–301MathSciNetCrossRefGoogle Scholar
  5. Goldsmith A (2005) Wireless communications. Cambridge University Press, New York, pp 381–382Google Scholar
  6. Huang Y, Rao BD (2012) Awareness of channel statistics for slow cyclic prefix adaptation in an OFDMA system. IEEE Wireless Commun Lett 1(4):332–335CrossRefGoogle Scholar
  7. Lindqvist F, Fertner A (2011) Frequency domain echo canceller for DMT-based systems. IEEE Signal Process Lett 18(12):713–716CrossRefGoogle Scholar
  8. Liu X, Chen HH, Chen S, Meng W (2017a) Symbol cyclic-shift equalization algorithm – A CP- free OFDM/OFDMA system design. IEEE Trans Veh Technol 66(1):282–294Google Scholar
  9. Liu XQ, Chen HH, Lv BY, Meng WX (2017b) Symbol cyclic shift equalization PAM-OFDM – a low complexity CP-free OFDM scheme. IEEE Trans Veh Technol 66(7):5933–5946CrossRefGoogle Scholar
  10. Lyons RG (2011) Understanding digital signal processing. Prentice Hall, BostonGoogle Scholar
  11. Malkin M, Hwang CS, Cioffi JM (2008) Transmitter precoding for insufficient-cyclic-prefix distortion in multicarrier systems. In: IEEE vehicular technology conference, pp 1142–1146Google Scholar
  12. Meng L, Li J, Huang A, Song J, Zhang H (2008) MMSE channel shortening equalization for OFDM systems with unequal subcarrier powers. In: Third international conference on communications and networking in China, pp 1013–1017Google Scholar
  13. Meyer C (2000) Matrix analysis and applied linear algebra, society for industrial and applied mathematics, pp xxii,714Google Scholar
  14. Sohn I (2014) A low complexity PAPR reduction scheme for OFDM systems via neural networks. IEEE Commun Lett 18(2):225–228CrossRefGoogle Scholar
  15. Tonello AM, D’Alessandro S, Lampe L (2010) Cyclic prefix design and allocation in bit-loaded OFDM over power line communication channels. IEEE Trans Commun 58(11):3265–3276CrossRefGoogle Scholar
  16. Zhang P, Qin J (2010) A simple channel shortening equalizer for wireless TDD-OFDM systems. In: 2010 IEEE international conference on wireless communications, networking and information security, pp 83–86CrossRefGoogle Scholar
  17. Zhang J, Ser W, Zhu J (2003) Effective optimisation method for channel shortening in OFDM systems. IEE Proc Commun 150(2):85–90CrossRefGoogle Scholar

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Engineering ScienceNational Cheng Kung University (NCKU)Tainan CityTaiwan

Section editors and affiliations

  • Hsiao-hwa Chen

There are no affiliations available