%0 Journal Article
%A CHEN Chang-sheng
%A CHENG Tao
%A FAN Xiang-hui
%A LIU Zhou-zhou
%A LI Shi-ning
%T Status and Analysis of Wireless Avionics Intra-Communications Network Protocol
%D 2021
%R 10.13190/j.jbupt.2020-151
%J Journal of Beijing University of Posts and Telecommunications
%P 1-8
%V 44
%N 3
%X In order to develop the wireless avionics intra-communications(WAIC) network protocol, referring to five layer protocol model of network communication, the reliability and security requirements of airborne wired communication network, the industrial wireless network protocol and the latest research results of WAIC network, the WAIC network system model is given. The application model, the topology model, the communication protocol model, and the technical difficulties of each layer of WAIC network communication protocol are analyzed as the key points and solutions. The physical layer uses 4.2~4.4 GHz frequency band, improves the anti-interference ability through orthogonal frequency division multiplex-ing technology, and selects quadrature amplitude modula and quadrature phase shift keying coding mode for high and low speed respectively; The data link layer uses passive neighbor discovery strategy, time division multiple access scheduling mode and active/standby channel transmission mechanism; The network layer uses static graph routing protocol to provide primary link fault redundancy; The transmission layer uses connectionless transmission service based on bidirectional identification; The application layer uses anonymous subscriber messaging protocol to decouple the application from the network to improve the diversity and compatibility of WAIC network application scenarios.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2020-151