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Full-Text Articles in Systems and Communications
Power Spectrum Prediction Of Amplified Dual-Band Lte-Advanced Signals, Xianzhen Yang
Power Spectrum Prediction Of Amplified Dual-Band Lte-Advanced Signals, Xianzhen Yang
Dissertations and Theses
In wireless communication, the nonlinearity of a radio frequency (RF) power amplifier is an important issue for power amplifier designers. Since the nonlinearity is generated by the properties of physical components, it is hard to avoid it in producing power amplifiers. Power amplifier designers should know about the nonlinearity in order to compensate for it.
A two-tone test is a relatively widely used method to measure the nonlinearity of a power amplifier, which means the third order intercept point (IP3) can be measured from the two-tone test. Through the two-tone test, researchers have proposed some formulae to present what the …
Spectrum Regrowth For Ofdm-Based Lte And Wimax Systems, Bosi Chen
Spectrum Regrowth For Ofdm-Based Lte And Wimax Systems, Bosi Chen
Dissertations and Theses
An abstract of the thesis of Bosi Chen for the Master of Science in Electrical and Computer Engineering presented Aug 1st, 2012. Title: Spectrum Regrowth for OFDM-based LTE and WiMAX Systems. In OFDM-based (Orthogonal Frequency Dimension Multiplexing) LTE (Long Term Evolution) and WiMAX (Worldwide Interoperability for Microwave Access) Systems, one of the critical components is the RF power amplifier. With current technologies, RF power amplifiers are not perfectly linear. The nonlinearity of an RF power amplifier is one of the main concerns in RF power amplifier design. The nonlinearity control is described by the out-of-band power emission levels, and the …