IPSN 2010

Simple example

Theory Background

3 key challenges  Choose an appropriate penalty function  high end-to-end packet delays  Scalability - Large queue sizes

3 key challenges - solution  Choose an appropriate penalty function

 React to loading threat

3 key challenges - solution  high end-to-end packet delays Using LIFO LIFO FIFO

3 key challenges - solution  Scalability - Large queue sizes Use Floating Queue Backpressure = sizeof( Virtual Q ) + sizeof( Data Q)

Experiment

Experiment – static network  Goodput & delivery efficiency BCPCTP 0.25PPS PPS

Experiment – static network  Delay performance

Experiment – static network  Scalability Maximum data queue size = 11

Experiment – static network  Reorder density CTP: 99.9% in-order delivery for 0.25pps & 1.0pps

Experiment – external interference  interference

Experiment – external interference  Highly mobile sinks