Receiver based compensation of nonlinear distortion in MIMO-OFDM

Multiple antenna orthogonal frequency division multiplex (MIMO-OFDM) is transmission technique being employed in the future software defined/cognitive radio solutions. The main disadvantage of using MIMO-OFDM is its high sensitivity to the nonlinear amplification due to the specific characteristic of the high power amplifier (HPA) in the transmitter front-end. This phenomena results in the large overall performance degradation in terms of the bit error rate (BER). In this contribution, we present an iterative receiver scheme to reduce the BER of MIMO-OFDM systems undergoing nonlinear distortion. The technique consist in the iterative estimation and compensation of the nonlinear distortion introduced by transmitters HPA. As it will be shown by means of the numerical performance evaluation, the proposed technique reduces significantly BER of MIMO-OFDM systems.

[1]  Dominique Morche,et al.  Receiver-Based Compensation of Transmitter-Incurred Nonlinear Distortion in Multiple-Antenna OFDM Systems , 2007, 2007 IEEE 66th Vehicular Technology Conference.

[2]  C. Rapp,et al.  Effects of HPA-Nonlinearity on a 4-DPSK/OFDM-Signal for a Digital Sound Broadcasting System. , 1991 .

[3]  H. Bölcskei,et al.  MIMO-OFDM wireless systems: basics, perspectives, and challenges , 2006, IEEE Wireless Communications.

[4]  John M. Cioffi,et al.  Maximum-likelihood detection of nonlinearly distorted multicarrier symbols by iterative decoding , 2003, IEEE Trans. Commun..

[5]  Alexander M. Haimovich,et al.  Iterative estimation and cancellation of clipping noise for OFDM signals , 2003, IEEE Communications Letters.

[6]  Xiang-Gen Xia,et al.  Space-Time/Frequency Coding for MIMO-OFDM in Next Generation Broadband Wireless Systems , 2007, IEEE Wireless Communications.

[7]  Thomas Eriksson,et al.  Evaluation of Performance Improvement Capabilities of PAPR-reducing Methods , 2008, Wirel. Pers. Commun..

[8]  G.-H. Im,et al.  Iterative amplitude reconstruction of clipped ofdm signals with optimum equalisation , 2006 .

[9]  Dongsik Kim,et al.  Amplitude clipping and iterative reconstruction of MIMO-OFDM signals with optimum equalization , 2009, IEEE Trans. Wirel. Commun..

[10]  Davide Dardari,et al.  A theoretical characterization of nonlinear distortion effects in OFDM systems , 2000, IEEE Trans. Commun..

[11]  Douglas B. Williams,et al.  A space-frequency transmitter diversity technique for OFDM systems , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).

[12]  S. Werner,et al.  Broadband powerr amplifier distortion cancellation with model estimation inthe receiver , 2007, 2007 IEEE 8th Workshop on Signal Processing Advances in Wireless Communications.

[13]  Risto Wichman,et al.  BROADBAND POWER AMPLIFIER DISTORTION CANCELLATION WITH MODEL ESTIMATION IN THE RECEIVER , 2007 .