Dixy: Transparent Payload Compression for Constrained Networks

Ichrak Kallala, Trifun Savic, Quentin Lampin, Marion Dumay, Stéphane Coutant, Cédric Adjih, Paul Muhlethaler, Thomas Watteyne

Abstract: This paper introduces Dixy, a solution specifically crafted for compressing the application payload of a low-power wireless networking protocol. Dixy is complementary and can be used in parallel to standardized header compression solutions such as 6LoWPAN or SCHC. Dixy operates as a dictionary compression by identifying a list of patterns and analyzing recently transmitted packets, but without ever having to explicitly share that dictionary with the receiver, as the receiver re-builds the same dictionary from the stream of packets it receives. We show how Dixy outperforms the closest related work by offering a compression factor 29% better by comparing the performance of multiple approaches on a dataset of 1,154,176 packets collected from 614 devices in a real-world commercial deployment. Dixy can be integrated seamlessly with payload security, and made standards-compliant.

External IDs:dblp:conf/smartiot/KallalaSLDCAMW24