Radio over fiber (RoF) link modelling using cross term memory polynomial

Abstract

Abstract Due to increase in number of users and demand for higher data rates, the development of transmission systems which meets these requirements is of concern. Radio over Fiber (RoF) has emerged as such kind of technology which not only caters these requirements but also has the advantage of low system complexity, power consumption maintenance costs and low attenuation. But RoF systems suffer from nonlinear distortion caused by the presence of nonlinear system components. This nonlinear distortion results in intermodulation distortion and hence degrades system performance. For mitigating nonlinear distortion, a linearizer is required. A linearizer has inverse characteristics to that of RoF link. For design of the linearizer, accurate modelling of RoF link is required. So, in this paper, we have presented the modelling of a nonlinear RoF ink using cross term memory polynomial.