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%.
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~.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2014年第2期197-200,共4页
Transactions of Beijing Institute of Technology
