Achieving bounded delay on a time-varying satellite uplink

Abstract

In this paper, we investigate the packet transmission delay in a time varying satellite uplink. Specifically, we are interested in bounding the packet transmission delay within the terminal router for uplink traffic in a future satellite network. Previous work has provided delay bounds for wireline networks with afixed transmission rate. However, these bounds do not apply to the time-varying satellite link that we are considering here. It has been shown that the terminal router in afuture SATCOM terminal can accommodate the varying uplink RF data rate by using Ethernet pause frames. We show that by encapsulating the pause frame information into two parameters: a window size and the minimum transmission time within a window, we are able to achieve a guaranteed packet transmission delay. We also quantify the tradeoff between the packet transmission delay and the throughput on the uplink. Experiments with a commercial-ofJ-the-shelf (COTS) Juniper Mi20 router were conducted to verify the delay bound.

Reliability and security investigations on video streaming over satellite links

“…Different protocols can be used for the delay bound estimation purpose. A typical example is described in [98]. The evaluation of the bounded delay can be achieved by observing the pause frame pattern.…”