Investigation of intermodulation distortion reduction technique for multi-channel fiber-radio transmission in heterogeneous access networks

Abstract

Broadband millimeter-wave (mm-wave) wireless access with optical fiber transport incorporating optical single sideband with carrier (OSSB+C) modulation has been shown to overcome dispersion with the potential to provide untethered connectivity [1]. In a multiple radio environment the performance of the fiber-radio system is severely limited by the nonlinearity of the optical frontend [2] and is further aggravated by fiber nonlinearities [3]. Therefore it is essential to improve the linearity of the optical frontend in such applications [4]. It is also essential to merge wireless and wireline access environments to create transparent heterogeneous access architectures [5].