TY - JOUR
T1 - Performance of mobile orthogonal frequency division multiplexing systems over timevarying non-linearities with memory
AU - Hilario Tacuri, Alexander Beremiz
AU - Fortes, José Mauro Pedro
PY - 2015/8/13
Y1 - 2015/8/13
N2 - The performance of modern communications transmitters utilising multi-carrier modulation techniques is highly sensitive to non-linear distortions arising mainly from the high-power amplifier. The increase in symbol duration makes the system more sensitive to time-varying channels. In addition, the wideband characteristics of multi-carrier signals result in frequency-dependent distortions, typically known as memory effects. This study presents analytical expressions that can be used to evaluate the impact of the distortions induced by time-varying non-linearities with memory on the bit error rate performance of a multi-carrier signal such as the orthogonal frequency division multiplexing. The timevarying non-linearity with memory is modelled by a time-varying Volterra series. The resulting mathematical expressions are applied to specific situations, allowing for a quantitative evaluation of the system performance degradation. & The Institution of Engineering and Technology 2015.
AB - The performance of modern communications transmitters utilising multi-carrier modulation techniques is highly sensitive to non-linear distortions arising mainly from the high-power amplifier. The increase in symbol duration makes the system more sensitive to time-varying channels. In addition, the wideband characteristics of multi-carrier signals result in frequency-dependent distortions, typically known as memory effects. This study presents analytical expressions that can be used to evaluate the impact of the distortions induced by time-varying non-linearities with memory on the bit error rate performance of a multi-carrier signal such as the orthogonal frequency division multiplexing. The timevarying non-linearity with memory is modelled by a time-varying Volterra series. The resulting mathematical expressions are applied to specific situations, allowing for a quantitative evaluation of the system performance degradation. & The Institution of Engineering and Technology 2015.
UR - http://www.scopus.com/inward/record.url?scp=84938502742&partnerID=8YFLogxK
U2 - 10.1049/iet-com.2014.1212
DO - 10.1049/iet-com.2014.1212
M3 - Artículo
AN - SCOPUS:84938502742
VL - 9
SP - 1531
EP - 1538
JO - IET Communications
JF - IET Communications
SN - 1751-8628
IS - 12
ER -