—Multiband (MB) orthogonal frequency-division multiplexing (OFDM) ultra-wideband (UWB) wireless, which provides high data rate access, is required to be distributed by using optical fiber. The performance of MB-OFDM UWB over fiber transmission system is investigated considering optical modulation and demodulation impact. Theoretical analysis of the effect… (More)
We propose and investigate the suppression of RoF nonlinearity using a semiconductor optical amplifier combined with simplified mixed polarization. It is found that EVM of OFDM UWB can be improved by up to 10.2dB.
Linearization technologies that can be used for linearizing RoF transmission are reviewed. Three main linearization methods, i.e. electrical analog linearization, optical linearization, and electrical digital linearization are presented and compared. Analog linearization can be achieved using analog predistortion circuits, and can be used for suppression of… (More)
The techniques to implement radio over fiber (RoF) systems using optical subcarrier modulation (SCM) and dense wavelength division multiplexing (DWDM) are reviewed, which include the techniques of SCM, millimeter-wave (mm-wave) generation and reception at base stations, and optical multiplexing/demultiplexing. The impact of system nonlinear distortions and… (More)