| Title | : | Persistent WiFi connectivity during Train journey: An SDN based approach |
| Speaker | : | Arkadeep Sen (IITM) |
| Details | : | Thu, 25 Apr, 2019 3:30 PM @ A M Turing Hall |
| Abstract: | : | With the exponential growth in the number of mobile devices, providing Internet access via WiFi in trains is rapidly becoming a necessity. However, providing persistent Internet access inside a moving train has many challenges. Cellular network is predominantly used for the backhaul connection to the train. However, high deployment cost of a cellular network and lack of sufficient coverage of existing cellular networks of telecom companies along the railway tracks may dissuade the railway companies to go for such solutions. We propose an SDN based architecture to provide Internet connectivity inside trains. The backhaul connection to the train, in the proposed architecture, is provided via WiFi. Deployment of such an architecture is more cost-efficient than that of a dedicated cellular network of the same capacity or the existing cellular networks of telecom companies, since there are no running tariffs and the spectrum is free. Moreover, this architecture can be used to provide connectivity in the coverage holes of the existing networks of the telecom companies. Using simulation-based studies, we show that the architecture can support high speeds and provide high throughput and packet delivery ratio while maintaining per packet delay within reasonable limits inside a train. |
