Model and optimal transmission scheduling of Multi-Hop Multi-Channel WCL

The collaborative nature of industrial wireless network system (IWNS) brings several advantages over traditional wired industrial monitoring and control systems, while commercial products and real-world deployments of IWNS are faced with harsh reliability and predictability issues, which are mainly attributed to the unreliable nature of individual wireless link. In this paper, we research Multi-Hop Multi-Channel wireless communication link (WCL). We model Multi-Hop Multi-Channel WCL at first, and then we present a optimal transmission scheduling policy based on join allocation of slots and channels problem. Following that, we relax the problem into a Subprime solution which is suitable for engineering application. At last, we developed testbed and achieved expectation result that Multi Hop Multi-Channel employing our transmission scheduling policy improved reliability obviously.