Phase Noise Spectral Limits in OFDM Systems

OFDM is recognized to be one of the best transmission techniques for wideband wireless communication systems. However, it exhibits two main drawbacks: its large amplitude fluctuation and its sensitivity to phase noise. Here we consider the phase noise impairments, taking care of the phase noise spectrum, which diverges form the classical Wiener model as the carrier frequency increases. Moreover, we show that the phase noise distortion can be decomposed in two terms, one dependent on the symbol under detection and the other dependent on the symbols of adjacent subcarriers, so that the performance degradation depends on both the constellation used in each subcarrier and the phase noise spectrum. As a consequence of this new results, the penalty due to phase noise expressed in terms of the average signal/noise plus interference ratio is not applicable in the case of modulations with non-constant amplitude constellations, such as 16- or 64-QAM. The method proposed here achieves a good accuracy, while keeping a low computational complexity, and it is confirmed by simulations.

[1]  Andrew J. Viterbi,et al.  Principles of coherent communication , 1966 .

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

[3]  Vadim Manassewitsch.  Frequency synthesizers: theory and design, 3rd ed. , 1987 .

[4]  Silvano Pupolin,et al.  Effects of phase noise spectral shape on the performance of dpsk systems for wireless applications , 2002, Eur. Trans. Telecommun..

[5]  J. J. Spilker.  Digital Communications by Satellite , 1994 .

[6]  Yeheskel Bar-Ness,et al.  OFDM systems in the presence of phase noise: consequences and solutions , 2004, IEEE Transactions on Communications.

[7]  Davide Dardari,et al.  High-speed indoor wireless communications at 60 GHz with coded OFDM , 1999, IEEE Trans. Commun..

[8]  T. Itoh,et al.  A dielectric resonator balanced second harmonic quasi-optical self oscillating mixer for 60 GHz applications , 1999, 1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282).

[9]  Thomas E. Parker,et al.  Characteristics and Sources of Phase Noise in Stable Oscillators , 1987, 41st Annual Symposium on Frequency Control.

[10]  Nobuo Nakajima,et al.  The future generations of mobile communications based on broadband access technologies , 2000, IEEE Commun. Mag..

[11]  G. Li Puma,et al.  A 2-GHz low-phase-noise integrated LC-VCO set with flicker-noise upconversion minimization , 2000, IEEE Journal of Solid-State Circuits.

[12]  Ana García Armada,et al.  Phase noise and sub-carrier spacing effects on the performance of an OFDM communication system , 1998, IEEE Communications Letters.

[13]  William H. Press,et al.  Numerical recipes in C , 2002 .

[14]  Andreas Polydoros,et al.  Phase-impairment effects and compensation algorithms for OFDM systems , 2005, IEEE Transactions on Communications.

[15]  Lorenzo Piazzo,et al.  Analysis of phase noise effects in OFDM modems , 2002, IEEE Trans. Commun..

[16]  Heung-Gyoon Ryu,et al.  Phase noise analysis of the OFDM communication system by the standard frequency deviation , 2003, IEEE Trans. Consumer Electron..

[17]  Vadim Manassewitsch,et al.  Frequency Synthesizers: Theory and Design , 1976 .

[18]  Mohamed El-Tanany,et al.  OFDM uplink for interactive broadband wireless: analysis and simulation in the presence of carrier, clock and timing errors , 2001, IEEE Trans. Broadcast..

[19]  Elena Costa,et al.  M-QAM-OFDM system performance in the presence of a nonlinear amplifier and phase noise , 2002, IEEE Trans. Commun..

[20]  Luciano Tomba,et al.  On the effect of Wiener phase noise in OFDM systems , 1998, IEEE Trans. Commun..

[21]  P.R. Gray,et al.  A 1.4 GHz differential low-noise CMOS frequency synthesizer using a wideband PLL architecture , 2000, 2000 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.00CH37056).

[22]  Andrew R Nix,et al.  A comparison of the HIPERLAN/2 and IEEE 802.11a wireless LAN standards , 2002, IEEE Commun. Mag..

[24]  Nevio Benvenuto,et al.  Achievable bit rates of DMT and FMT systems in the presence of phase noise and multipath , 2000, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).

[25]  Guanghui Liu,et al.  Compensation of phase noise in OFDM systems using an ICI reduction scheme , 2004, IEEE Trans. Broadcast..