Mariappan Ramasamy
Jawharlal Nehru Technological University
India
Title: LTE based Satellite networks using IP-Over-WDM optical links
Biography
Biography: Mariappan Ramasamy
Abstract
Optical Communication plays a vital role in many applications which require high data rate links with low latency and wide channel capacity. IP-over-WDM is the future Optical Internet technology which replaces the bottleneck of electronic routers and switches available in the current generation Internets. One such challenging technology is the LTE based Satellite networks using IP-over-WDM Optical links from satellite to ground stations ie for Satellite downlinks. Due to the inherent properties of Optical domain, it reduces the downlink latency to a great extent while increasing more number of satellite users with its enormous bandwidth. As the channel space per user will be wide enough, the becoming probability of the downlink will be almost zero. In addition, the Optical links have no electromagnetic interference or noise like RF links in the traditional RF based satellite networks. Also, the RF links need complex design of ground station receiver, while the proposed optical domain receiver will have simpler design by using an efficient photo detector without any external noise or EM interference. This new technology may have few challenging problems due to bad weather and environmental conditions, which can be solved by re-routing satellite links through cross optical links where good optical beams are received perfectly. The most important aspect of this next generation LTE based Optical domain satellite link is reconfigurability, the logical link topology will be reconfigured and optimized based on the traffic load, link cost, etc and hence the ultimate QoS parameters for the Optical domain satellite link network will be enhanced much.