| 适用于TEDS系统的AMC与HARQ结合算法 |
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| 引用本文： | 侯舒娟,王云云,宋灵燕.适用于TEDS系统的AMC与HARQ结合算法[J].北京理工大学学报,2014,34(2):197-200. |
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| 作者姓名： | 侯舒娟 王云云 宋灵燕 |
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| 作者单位： | 北京理工大学 信息与电子学院, 北京 100081 |
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| 摘 要： | 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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| 关 键 词： | 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） |
| 收稿时间： | 2013/4/11 0:00:00 |
Joint AMC-HARQ Algorithm for TEDS System |
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| HOU Shu-juan,WANG Yun-yun and SONG Ling-yan.Joint AMC-HARQ Algorithm for TEDS System[J].Journal of Beijing Institute of Technology(Natural Science Edition),2014,34(2):197-200. |
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| Authors: | HOU Shu-juan WANG Yun-yun and SONG Ling-yan |
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| Institution: | School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A joint AMC-HARQ (hybrid automatic repeat-request) algorithm for TEDS was proposed in this paper. Threshold fixed algorithm based SNR method was adopted in the AMC procedure to select the appropriate modulation and coding scheme; and majority-logic decoding was used in the combining procedure of retransmitted data blocks. Simulation results verify that the proposed algorithm can effectively improve the reliability of data transmission. When the maximum number of retransmission is 2, frame error rate decreases from 36.49% to 6.93%. |
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| Keywords: | adaptive modulation and coding (AMC) hybrid automatic repeat-request (HARQ) terrestrial trunked radio(TETRA) TEDS |
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