Performance analysis of entrance link using cascaded Radio-on-Fiber and digital Radio-on-Radio

This paper proposes a cascaded Radio on Fiber and digitalized Radio on Radio entrance link for small cell mobile access. By utilizing wideband property of millimeter-wave, RF signals such as cellular, WiFi, or WiMAX can be digitalized and transferred to remote base station through digital Radio on Radio link. This paper will show the system configuration, and theoretical evaluations of the link design. A basic experiment shows some results of EVM measurements for WiMAX signals. The influence of the sampling rate and quantization level at ADC will be discussed. Moreover, delay characteristics of proposed system will be shown.