Compensation of undesired effects in MIMO wireless transceivers

Cabarkapa, M., Bozic, M., Neskovic, N., Neskovic, A. and Budimir, D. (2012) Compensation of undesired effects in MIMO wireless transceivers. In: IEEE International Symposium on Antennas and Propogation and CNC//USNC/URSI National Radio Science Meeting (APS2012), 08 - 14 July 2012, Chicago, Illinois, USA.

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This paper presents compensation of all undesired effects (Power Amplifier (PA) nonlinearity, transmitter and receiver antenna crosstalk, before-PA nonlinear crosstalk, Multiple Input Multiple Output (MIMO) channel fading and crosstalk) in MIMO Orthogonal Frequency Division Multiplex (OFDM) wireless systems. It has been demonstrated that reduced-complexity Crossover Digital Predistortion (CO-DPD) algorithm on transmitter side and Matrix Inversion algorithm on receiver side can suppress almost all undesired effects introduced by transmitter, channel and receiver in 4×4 MIMO OFDM System that can be used in modern wireless system applications. A significant complexity reduction is achieved due to the fact that Digital Signal Processing (DSP) during CO-DPD process on transmitter side is done with real instead of complex numbers.

Item Type: Conference or Workshop Item (Paper)
Subjects: University of Westminster > Science and Technology
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Date Deposited: 30 Apr 2012 12:12
Last Modified: 26 Apr 2017 14:32

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