郑州大学学报（工学版）2013，Vol.34Issue(4)：110-114,5.DOI:10.3969/j.issn.1671-6833.2013.04.026
VHF航空信道下一种多机协作通信新方法
A New Method for Multi-Aircraft Cooperative Communication in the VHF Aeronautical Channel
摘要
Abstract
In view of the high BER (Bit Error Rate) caused by a variety of interference in the aeronautical communications,this paper proposes the multi-aircraft cooperative communication scheme for the case that a direct link does or doesn' t exist separately to improve the diversity gain in aeronautical channel.The proposed scheme could achieve high data rate,effectively resist multi-path fading,and expand the communication range in conditions of fixed airborne communication equipment modulation and constant transmission power.By analyzing whether there is a direct link for transmitting signals in VHF channel,we give both the amplify-and-forward and decode-and-forward cooperative communication mode based on the model of aeronautical channel.What's more,the maximum ratio combining method is utilized to improve the SNR (Signal to Noise Ratio) at the receiving end.Simulation results show that the multi-aircraft DF has optimal performance of BER when direct link exists,and the multi-aircraft AF has optimal performance of BER when direct link does not exist,when the parameters of air-to-air and air-to-ground channels are given.关键词
航空信道/放大转发(AF)/解码转发(DF)/多机协作通信Key words
aeronautical channel/ amplify-and-forward (AF)/ decode-and-forward (DF)/ multi-aircraft cooperative communication分类
信息技术与安全科学引用本文复制引用
王忠勇,党刚,元洪波,张大鹏..VHF航空信道下一种多机协作通信新方法[J].郑州大学学报（工学版）,2013,34(4):110-114,5.基金项目
国家自然科学基金资助项目(61172086). （61172086）
