Implementation of Green radio communication networks applying radio-over-fibre (ROF) technology for wireless access

Abstract

This paper aims to simulate the transmission of wireless and baseband RF signals via fiber for a long distance in high quality, consuming a low-power budget using Optisystem Software. ROF has achieved an effective delivery of wireless and baseband signal, and has also reduces the power consumption. Whereas recent fast growing broadband access technology through wireless is WiMAX (Worldwide Interoperability for Microwave Access). In this Paper, the ROF implements into WiMAX. And we will be carried out digital modulation techniques 4 –QAM .It shows the advantage of transmitting signals via fibre rather than via free space in terms of optical spectrum and Constellation Diagram.

Key Words: OFDM, QAM, CONSTELLATION DIAGRAM