基于信道估计自适应算法的AVLC重发机制仿真

郜林

doi:10.13700/j.bh.1001-5965.2014.0152

基于信道估计自适应算法的AVLC重发机制仿真

doi: 10.13700/j.bh.1001-5965.2014.0152

郜林^1,2, ,

1.
天津财经大学理工学院, 天津 30022
2. 天津大学电子信息工程学院, 天津 300072

基金项目: 国家自然科学基金资助项目(61170328)

详细信息

通讯作者:
郜林(1971—),男, 天津人, 讲师, 1119374968@qq.com, 主要研究方向为通信网络关键技术.

中图分类号: TN919.3;V11
计量
- 文章访问数: 1415
- HTML全文浏览量: 118
- PDF下载量: 658
- 被引次数: 13
出版历程
- 收稿日期: 2014-03-25
- 网络出版日期: 2015-02-20

AVLC retransmission mechanism simulation based on adaptive channel estimation algorithm

GAO Lin^{1,2
, ,}

1.
School of Polytechnic, Tianjin University of Finance and Economics, Tianjin 30022
2. School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China

摘要

摘要: 航空甚高频链路控制(AVLC)是下一代民航地空数据链甚高频数据链模式2(VDL2)的链路服务规程.为了提高AVLC重发控制效率、减少误重发,提出了基于信道估计的监督帧发送时刻自适应算法.在OPNET平台上建立了物理层、数据链路层和子网层VDL2架构;利用动态进程建模方法,建立了AVLC模型.通过对无监督帧、监督帧发送时刻静态算法和自适应算法分别建模,开展对比仿真,验证了监督帧重发控制对于提高VDL2性能的有效性和自适应算法较静态算法的优越性.实验结果表明,在宽范围的系数合理区间内,所提出的算法可有效增加吞吐量,缩小包延时,同时可增强系统稳定性.
- 航空甚高频链路控制(AVLC) /
- 信道估计自适应算法 /
- 监督帧定时 /
- 动态进程 /
- 合理系数区间
Abstract: Aviation VHF (very high frequency) link control (AVLC) is the data link service protocol of VHF data link mode 2 (VDL2) which will be the next generation civil aviation dada link. To increase the AVLC retransmission control efficiency and reduce the mistaken retransmission possibility, the adaptive surveillance frame delivery algorithm was proposed based on channel estimation. VDL2 architecture was established with physical layer, data link layer and sub-network layer on OPNET platform. By dynamic process modeling, AVLC model was built. Contrast simulation was carried out through setting up models of none surveillance frame, surveillance frame delivery static algorithm and adaptive algorithm respectively. Experimental results show that surveillance frame retransmission control has validity in improving VDL2 performance and the adaptive algorithm has superiority over the static algorithm. Experimental results also show that the proposed algorithm can increase the throughput and lessen the packet delay efficiently, as well as enhance the system stability under wide reasonable coefficient range.
- aviation VHF link control (AVLC) /
- adaptive channel estimation algorithm /
- surveillance frame timing /
- dynamic process /
- reasonable coefficient range

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参考文献(15)

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