An adaptive channel multiplexing method for spatial data based on AOS protocol

Channel scheduling affects implement efficiency of AOS protocol significantly. An adaptive channel multiplexing method is proposed in this paper. This method includes two parts: adaptive packet channel multiplexing and time slice boundary movable virtual channel multiplexing. The adaptive packet channel multiplexing adjusts its generating time with output bandwidth. The time slice boundary movable virtual channel multiplexing considers both the facts of data type, urgency, injection rate, max waiting time. A network model based on OPNET simulator compares this method with weighted polling and fixed priority scheduling algorithms. Experiment shows that the proposed algorithm meets the real time performance of network platform data, reducing delay of payload data and efficiency utilizes output bandwidth.