摘要
为了促进光网络信道传输技术的发展,需要研究光网络信道在恶劣环境下的传输特性。采用当前方法研究光网络信道传输特性时,优化后的光网络信道信噪比较高,数据在信道中传输的时延较高。提出恶劣环境下的光网络信道传输特性研究方法,对信噪比、数据传输时延和信道堵塞三种光网络信道传输特性进行研究。采用注水算法调整信道的容量,提高光网络信道的信噪比;根据马尔可夫决策过程选择数据在光网络中对应的传输信道,降低数据在光网络信道中的传输时延;通过等待时间限制、应答超时限制和定时发送时间三个时间阈值,调整光网络信道中的传输时延,避免光网络信道中出现数据拥塞的现象。实验结果表明,所提方法通过研究信噪比、数据传输时延和信道堵塞三种光网络信道传输特性,降低了光网络信道的信噪比和传输时延,并解决了信道的堵塞问题。
In order to promote the development of optical network channel transmission technology,it is necessary to study the transmission characteristics of optical network channels in harsh environments.When the current method is used to study the optical network channel transmission characteristics,the optimized optical network channel signal-to-noise ratio is relatively high,and the data transmission time delay in the channel is high.This paper proposes a research method of optical network channel transmission characteristics in harsh environments,and studies the transmission characteristics of three optical network channels,such as signal-to-noise ratio,data transmission delay and channel congestion.The water injection algorithm is used to adjust the capacity of the channel to improve the signal-to-noise ratio of the optical network channel;according to the Markov decision process,the corresponding transmission channel of the data in the optical network is selected to reduce the transmission delay of the data in the optical network channel;The three time thresholds,the response timeout limit and the timed transmission time,adjust the transmission delay in the optical network channel to avoid data congestion in the optical network channel.The experimental results show that the proposed method reduces the signal-to-noise ratio(SNR)and transmission delay of the optical network channel and solves the channel congestion problem by studying the transmission characteristics of three optical network channels,such as signal-to-noise ratio,data transmission delay and channel congestion.
作者
张燕
张亚东
ZHANG Yan;ZHANG Yadong(School of Mathematics and Statistics,Xuchang Henan 461000,China)
出处
《激光杂志》
北大核心
2019年第9期103-106,共4页
Laser Journal
基金
国家自然科学基金项目(No.11772291)
许昌学院校级科研项目(No.2018YB005)
关键词
恶劣环境
光网络信道
传输特性
信噪比
harsh environment
optical network channel
transmission characteristics
signal-to-noise ratio
