Improved Compression-Latency Trade-Off via Delayed-Dictionary Compression

We have recently introduced a novel compression algorithm for packet networks: delayed-dictionary compression, which enables an improved compression-latency trade-off. By allowing delay in the dictionary construction, the algorithm handles effectively the problems of packet drops and packet reordering: Its compression quality is close to that of streaming compression (and is substantially better than that of standard stateless packet compression) while its decoding latency is close to that of stateless compression (and is substantially smaller than that of streaming compression). In this Demo, we demonstrate the key ingredients of the new compression technique and show the effect of the dictionary delay on the effective bandwidth and on the decoding latency. We also demonstrate an effective filetransfer with a UDP carrier over the internet, using the PlanetLab platform.