Technical Report Number
Process industries are adopting wireless sensor-actuator networks (WSANs) as the communication infrastructure. WirelessHART is an open industrial standard for WSANs that have seen world-wide deployments. Real-time scheduling and delay analysis have been studied for WSAN extensively. End-to-end delay in WSANs highly depends on routing, which is still open problem. This paper presents the first real-time routing design for WSAN. We first discuss end-to-end delays of WSANs, then present our real-time routing design. We have implemented and experimented our routing designs on a wireless testbed of 69 nodes. Both experimental results and simulations show that our routing design can improve the real-time performance significantly.
Wu, Chengjie; Gunatilaka, Dolvara; Sha, Mo; and Lu, Chenyang, "Conflict-Aware Real-Time Routing for Industrial Wireless Sensor-Actuator Networks" Report Number: WUCSE-2015-005 (2015). All Computer Science and Engineering Research.