[1]李娜,赵永祥. 车地通信系统中帧传输机制的研究[J].计算机技术与发展,2014,24(10):250-253.
　LI Na ZHAO,Yong-xiang. Research on Frame Transmission Mechanism on TWC System[J].,2014,24(10):250-253.
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 车地通信系统中帧传输机制的研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
24
期数:
2014年10期
页码:
250-253
栏目:
应用开发研究
出版日期:
2014-10-10

文章信息/Info

Title:
 Research on Frame Transmission Mechanism on TWC System
文章编号:
1673-629X（2014）10-0250-04
作者:
 李娜; 赵永祥
 北京交通大学 电子信息工程学院
Author(s):
 LI Na ZHAO; Yong-xiang
关键词:
 ; 车地通信; 最早离开算法; 单向平移; RSSI
Keywords:
 ; TWC; earliest leave algorithm; unidirectional translation; RSSI
分类号:
TP31
文献标志码:
A
摘要:
 车地通信系统对帧传输的实时性要求较高。为了提高车地通信系统帧传输的时延性能，针对车地通信系统中多个外置天线的信号的部分可预测性特点，文中提出一种帧请求调度的新算法-最早离开算法。在车地通信系统中，多个外置天线的RSSI值之间是一种单向平移的关系，最早离开算法充分利用了这种平移性，在帧到达的时刻预测帧在每个外置天线上的离开时刻，从而选择最早处理完的外置天线进行帧传输。仿真结果表明，最早离开算法的传输时延性能优于现有的请求调度算法。
Abstract:
 TWC system has high requirement for the real-time of frame transmission. In order to improve the frame delay performance on TWC system,aiming at the signal part predictability of the external antennas in TWC,propose a new scheduling algorithm:the earliest leave algorithm. On TWC system,RSSI between the external antenna is a unidirectional translational relationship,with this relationship, the earliest leave algorithm can predict the leave time on each external antenna at the frame arrival time,then choose the earliest finishing one. The simulation results show that the delay performance of the new algorithm is better than the existing algorithms.

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更新日期/Last Update: 2015-04-03