Reasearch On Transmission Control Interface Technology Of Integrated Sensing Network

Integrated Sensing Networking (ISN) is an integrated network with high abilities for physical sensing, data transmission and service processing, in which the transmission layer achieves data transmission at high speed by separating transmission and control data. The Information interaction and interface between transmission and control layers are critical problems needed to be solved urgently. Supported by the National Science Foundation, the thesis researches on the transmission control interface technology of ISN by focusing on the development of Nanjing Huamai Technology Co., Ltd.Firstly, a transmission control scheme and structure in the transmission layer of ISN is proposed and designed, and its transmission control policy is also analyzed. Functional entities of the control interface, including performance evaluation, resource control, traffic grooming and transmission processing, are provided. Three types of information contents and frame formats are defined and designed, including real time steady state, instantaneous alarm and configuration information, as well as their transfer process. Successively, the improved Dijstra algorithm is proposed based on which the path establishment times and multi service scheduling are analyzed in details. Compared with the traditional similar algorithms, the path establishment time is speeded up by 0.06s while the waiting time in service scheduling is depressed by 0.5 using new one. Then, the improved ant colony algorithm is proposed and analyzed with the ratio of available wavelengths and path for choosing traffic grooming route. The threshold for traffic grooming is assured and lowest packets blocking probability can be obtained with the threshold of 1. The algorithm has been evaluated through simulation in NSF network with 170Erl. Compared with basic ant colony algorithm, the packets blocking probability can be reduced as 0.1 and wavelength utilization ratio can be increased as 0.2. Lastly, the transmission layer topology based on Ethernet network is proposed and its software architecture and information types of control interface are defined. Program diagram and software platform are developed based on above the network constructed. The function of network linking, real time state reporting, service transmission requesting and traffic alarm of control interface are verified by extracting the related state data frames transmitted in the network.