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适用于TEDS系统的AMC与HARQ结合算法

Keywords: 自适应调制编码,混合自动重传请求,陆地集群无线电(TETRA),TETRA增强数据业务(TEDS)

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Abstract:

研究陆地集群无线电增强数据业务(TEDS)中的自适应调制编码(AMC)与HARQ结合算法.该算法采用基于SNR的切换门限判别法进行调制编码方式的选择,采用大数逻辑译码算法进行重传数据帧的合并.仿真结果验证了所提出的算法可有效地提高TEDS系统数据传输的可靠性,当最大重传次数为2时,所提出的算法能够使系统的误帧率由36.49%下降到6.93%.

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