Design of robust pulses to carrier frequency offset for OFDM/OQAM system

The high sensitivity to carrier frequency offset of OFDM systems compared to single carrier systems is well known. In this paper we study how this can be remedied for OFDM/OQAM systems by appropriate pulse shaping. Building on earlier methods for minimizing out-of-band energy, a procedure for pulse shape design is derived. The new pulses are optimal with respect to interference in OFDM/OQAM systems. It is also demonstrated that, in this respect, OFDM/OQAM outperforms OFDM/QAM systems using rectangular pulses.

[1]  R. Chang.  Synthesis of band-limited orthogonal signals for multichannel data transmission , 1966 .

[2]  Marc Moeneclaey,et al.  BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise , 1995, IEEE Trans. Commun..

[3]  P. K. Remvik,et al.  Fading and carrier frequency offset robustness for different pulse shaping filters in OFDM , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[4]  Pierre Siohan,et al.  Analysis and design of OFDM/OQAM systems based on filterbank theory , 2002, IEEE Trans. Signal Process..

[5]  H. Nikookar,et al.  Frequency offset sensitivity reduction of multicarrier transmission by waveshaping , 2000, 2000 IEEE International Conference on Personal Wireless Communications. Conference Proceedings (Cat. No.00TH8488).

[6]  B. Hirosaki,et al.  An Orthogonally Multiplexed QAM System Using the Discrete Fourier Transform , 1981, IEEE Trans. Commun..

[7]  Helmut Bölcskei,et al.  Design of pulse shaping OFDM/OQAM systems for high data-rate transmission over wireless channels , 1999, 1999 IEEE International Conference on Communications (Cat. No. 99CH36311).

[8]  Gianfranco Cariolaro,et al.  An OFDM Scheme with a half Complexity , 1995, IEEE J. Sel. Areas Commun..

[9]  Michael Faulkner,et al.  The effect of filtering on the performance of OFDM systems , 2000, IEEE Trans. Veh. Technol..

[10]  Anders Vahlin,et al.  Optimal finite duration pulses for OFDM , 1996, IEEE Trans. Commun..

[11]  D. Slepian,et al.  Prolate spheroidal wave functions, fourier analysis and uncertainty — II , 1961 .