Optimal beamforming in MIMO systems with HPA nonlinearity
- 1 September 2010
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
In this paper, multiple-input multiple-output (MIMO) transmit beamforming (TB) systems under the consideration of nonlinear high-power amplifiers (HPAs) are investigated. The optimal beamforming scheme, with the optimal beamforming weight vector and combining vector, is proposed for MIMO systems with HPA nonlinearity. The performance of the proposed MIMO beamforming scheme in the presence of HPA nonlinearity is evaluated in terms of average symbol error probability (SEP), outage probability and system capacity, considering transmission over uncorrelated quasi-static frequency-flat Rayleigh fading channels. Numerical results are provided and show the effects of several system parameters, namely, parameters of nonlinear HPA, numbers of transmit and receive antennas, and modulation order of phase-shift keying (PSK), on performance.Keywords
This publication has 7 references indexed in Scilit:
- Impact of HPA nonlinearity on MIMO systems with quantized equal gain transmissionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2009
- On the Effect of Power Amplifier Nonlinearity on MIMO Transmit Diversity SystemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2009
- Performance of space time codes over nonlinear MIMO channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Closed-Form Expressions for the Outage and Ergodic Shannon Capacity of MIMO MRC SystemsIEEE Transactions on Communications, 2005
- Analysis of transmit-receive diversity in rayleigh fadingIEEE Transactions on Communications, 2003
- Memoryless Nonlinearities With Gaussian Inputs: Elementary ResultsBell System Technical Journal, 1982
- Frequency-Independent and Frequency-Dependent Nonlinear Models of TWT AmplifiersIEEE Transactions on Communications, 1981