Title :
On the Effect of Power Amplifier Nonlinearity on MIMO Transmit Diversity Systems
Author :
Qi, Jian ; Aïssa, Sonia
Author_Institution :
INRS-EMT, Univ. of Quebec, Montreal, QC, Canada
Abstract :
Nonlinearity of high-power amplifier (HPA) plays a crucial role in the performance of multiple-input multiple-output (MIMO) systems. In this paper, we investigate the performance of MIMO orthogonal space-time block coding (STBC) systems in the presence of nonlinear HPA. Specifically, we assess the impact of HPA nonlinearity on the average symbol error probability (SEP), total degradation (TD), and system capacity of orthogonal STBC in uncorrelated Nakagami-m fading channels. Numerical results are provided and show the effects of several system parameters, such as the output back-off (OBO) of nonlinear HPA, numbers of transmit and receive antennas, and modulation order of quadrature amplitude modulation (QAM), on performance.
Keywords :
MIMO communication; Nakagami channels; block codes; orthogonal codes; power amplifiers; quadrature amplitude modulation; space-time codes; MIMO transmit diversity systems; orthogonal space-time block coding; power amplifier nonlinearity; quadrature amplitude modulation; symbol error probability; system capacity; total degradation; uncorrelated Nakagami-m fading channels; Block codes; Capacity planning; Degradation; Error probability; Fading; High power amplifiers; MIMO; Power amplifiers; Quadrature amplitude modulation; Receiving antennas;
Conference_Titel :
Communications, 2009. ICC '09. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3435-0
Electronic_ISBN :
1938-1883
DOI :
10.1109/ICC.2009.5199252
