encDPWS - message encoding of SOAP Web Services

Current efforts in real world deployment of wireless sensor networks end up in the development of the 6LoWPAN protocols. While big industrial consortia develop new technologies, architectures, and concepts, 6LoWPAN is heading towards improvements and adaptations of existing and matured network protocols like IP, TCP, and UDP. Because 6LoWPAN uses the low power WPAN standard IEEE 802.15.4 in lower layers, a standardized and seamless connectivity of low power wireless devices with existing networking infrastructure is achieved. But further research on suitable application layer protocols on top of 6LoWPAN is still required. This paper investigates on the applicability of the Devices Profile for Web Services (DPWS) in 6LoWPAN networks. Main scope is the necessary optimized message encoding, to reduce the overhead of this SOAP based protocol. Therefore, the paper introduces in current developments of encDPWS (encoded DPWS), a new encoding for DPWS.