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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)。
At first, the research on the adaptive broadband tactical radio demo system based on the backbone network of the US military DARPA (Department of Defense Advanced Research Projects Agency) is focused on analyzing the characteristics and development trend of the waveforms based on broadband backbone network applications. Combined with the application of military tactical radio station, an adaptive broadband network waveform physical layer scheme based on OFDM + Turbo is proposed, and the simulation results of performance are given. For the MAC layer, an improved MDL (Mobile Data Link Layer Protocol) is adopted based on the basic idea of USAP (Unified Timeslot Assignment Protocol) and based on actual tactical radio applications.