Capacity performance evaluation of radio over fiber on WDM/TDM GPON architecture

摘要

The implementation of radio over fiber in wireless communication achieved high data rate and high capacity due to utilization of high capacity optical fiber and the flexibility of wireless network. Gigabit- Passive Optical Network (GPON) is the most important PON. The Time Division Multiplexing (TDM) technology was the basic technology for GPON, and Wavelength Division Multiplexing (WDM) PON is the most popular Access Network (AN) which utilized multiple wavelengths on a single fiber. But now, the most important AN technology is Hybrid WDM/TDM GPON technology. The WDM/TDM Hybrid GPON offers better performance than TDM PON, and satisfy the Quality of Service (QoS) requirements of WDM/TDM Hybrid GPON. This work Study the possibility of distribution 4G Base Stations hybrid WDM/TDM- GPON architecture for downlink, The aim of it is to design the network model using Optisystem simulation tools. The performance of the system was analyze in term of eye diagram, OSNR, error vector magnitude (EVM) and power budget. The design of hybrid WDM/TDM system is employing DPSK as the RF modulation scheme. In this design, the transmitter presenting eight input signal and serve 32 users. The network model have been modeled and simulated successfully and achieved the good performance network.