Delay-tolerant Adaptive Real-time Communication: A Case Study for Voice
Nagasai Panchakarla, Jörg Ott · 2012
Delay-tolerant networking allows dealing with temporary disconnections and non-available end-to-end paths. While many DTN system designs focus on asynchronous applications (such as messaging or content sharing), DTN communication may also be a suitable fallback for adaptive real-time applications if end-to-end communication fails. In this paper, we explore this idea to enhance the adaptivity of real-time voice for which we design a system that switches between RTP/UDP-based and RTP/DTN-based voice as a function of the observed RTT and loss rate. 1.