摘要
首先对美军DARPA(美国国防部先进计划研究局)基于骨干网的自适应宽带战术电台演示系统进行研究,侧重分析基于宽带骨干网应用的波形应具备的特点及发展趋势。然后结合军用战术电台应用,提出基于OFDM+Turbo的自适应宽带网络波形物理层方案,并给出性能仿真分析结果。针对MAC层采用了基于USAP(统一时隙分配协议)的基本思想并根据实际战术电台应用情况,加以改进的MDL(移动数据链路层协议)。
This paper firstly describes DARPA demonstration system,which is a adaptive broadband tactical backbone radio system. Especially,the characteristic and the development direction of broadband backbone net waveform is analyzed. In order to satisfy the application of military tactial radio,a realizable adaptive physical layer scheme based on OFDM and Turbo is presented,the results of system simulation demonstrate the excellent performance. USAP( Unifying Dynamic Distributed Multichannel TDMA Slot Assignment Protocol) is adopted for MAC( medium access control).
出处
《通信技术》
2014年第7期728-732,共5页
Communications Technology