Receiver DSP for OFDM Systems Impaired by Transmitter and Receiver Phase Noise

This paper proposes a time-domain digital signal processing method for estimating and mitigating transmitter and receiver oscillator phase-noise effects in OFDM radio systems on receiver side of the link. The idea is based on re-constructing time-domain OFDM signal at the receiver from initially detected symbols and using this as a reference in phase noise estimation. The knowledge of heavily low-pass nature of realistic phase noise processes is then utilized in the estimation process to improve the estimation performance. The algorithm can also be used iteratively, inside individual OFDM symbols, to further improve the accuracy of the obtained phase noise estimates. Performance analysis shows that the proposed algorithm outperforms existing state-of-the-art phase noise mitigation techniques, under both additive white Gaussian noise and extended ITU-R Vehicular A multipath channels.

[1]  Patrick Robertson,et al.  Analysis of the effects of phase-noise in orthogonal frequency division multiplex (OFDM) systems , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[2]  T.B. Sorensen,et al.  Extension of the ITU channel models for wideband (OFDM) systems , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[3]  Upena Dalal,et al.  Wireless Communication , 2010 .

[4]  Mikko Valkama,et al.  VCO phase noise trade-offs in PLL design for DVB-T/H receivers , 2009, 2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009).

[5]  Gerhard Fettweis,et al.  Exploiting Phase Noise Properties in the Design of MIMO-OFDM Receivers , 2008, 2008 IEEE Wireless Communications and Networking Conference.

[6]  Seung-Jun Yu,et al.  Wireless Communication , 1916, Nature.

[7]  Wolfgang Rave,et al.  Joint Iterative Transmitter and Receiver Phase Noise Correction using Soft Information , 2007, 2007 IEEE International Conference on Communications.

[8]  Wolfgang Rave,et al.  Dirty RF: A New Paradigm , 2005, 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications.

[9]  Mikko Valkama,et al.  Phase noise modelling and mitigation techniques in ofdm communications systems , 2009, 2009 Wireless Telecommunications Symposium.

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

[11]  Tcw Tim Schenk,et al.  RF impairments in multiple antenna OFDM : influence and mitigation , 2006 .

[12]  Mikko Valkama,et al.  Analysis and mitigation of phase noise and sampling jitter in OFDM radio receivers , 2010, International Journal of Microwave and Wireless Technologies.

[13]  Gerhard Fettweis,et al.  Numerical Performance Evaluation for OFDM Systems Affected by Phase Noise and Channel Estimation Errors , 2008, 2008 IEEE 68th Vehicular Technology Conference.

[14]  Wolfgang Rave,et al.  Effects of Phase Noise on OFDM Systems With and Without PLL: Characterization and Compensation , 2007, IEEE Transactions on Communications.

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