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Recent innovations in Low-Power Wireless Personal Area Networks (LoWPAN) and Low-Power Wide Area Networks (LPWAN) are enabling connectivity for a large class of applications that previously could not afford the cost of or the power implications.
These innovations in networking have not been matched by innovations in the higher-level protocols used to collect/share data. As a result, applications that leverage these low-power networks are often crafting custom messaging layers. DDS-XRCE (DDS for eXtremely Resource Constrained Environments) is an upcoming standard that aims to provide a zero-cost high level data-sharing protocol for these constrained environments.
This presentation explains the unique technical challenges introduced by constrained environments and (1) explains why existing standards are seldom applicable, (2) introduces DDS-XRCE and explain how it optimally addresses constrained environments, and (3) provides a comparison with existing constrained protocols such as CoAP.