Performance enhancement of eight-channel WDM-RoF-PON system at 80 Gbps data rate using raman amplifier

Abstract

In today’s time due to the spread of smart phones, tablets, various machine-to-machine (M2M) communication-based applications and the rapid arrival of the internet of things (IoT)-based applications have raised request of huge bandwidth. Services for applications like transfer of various types of images, high-quality video streaming, and upcoming concepts of clouds in real time demand wireless broadband access. To cater such demands wireless access schemes using radio over fiber (RoF) technology can be used faithfully. RoF is becoming matured technology in terms of security, reliability, and coverage. Use of Raman amplifier can be done to mitigate limitations such electrical power attenuation, multipath fading, and chromatic dispersion for comparatively long distances in many applications. In this paper we have proposed the design of WDM-RoF-PON link operated at 80 Gbps data rate which comprises 8 multiplexed channels with 100-GHz channel spacing with PSK modulation technique. Due to their abundant bandwidth RoF networks are expert of supporting multiple RF subcarrier signals at a same time. Performance of proposed system is evaluated in terms of Q factor and BER parameters which provides better insight into quality of received signals in many applications.