| 本文已被：浏览 3825次 下载 5073次 |
码上扫一扫！ |
|
|
| 一种用于单向链路网络的路由算法 |
|
黄 浩1,2, 吴礼发1,2, 陈道蓄1,2, 谢 立1,2, 孙钟秀1,2
|
|
1.南京大学计算机软件新技术国家重点实验室,南京,210093;2.南京大学计算机科学与技术系,南京,210093
|
|
| 摘要: |
| 价格低廉的卫星只收接收器能接收卫星发送的高带宽的数据,但是它不能向卫星发送数据.这样,卫星到这种接收器的链路就是单向的链路.现有的路由协议要求每条链路都是双向链路,不能处理单向链路的问题.一些学者利用“隧道”方法来解决这个问题.但是，这种方法需要事先知道一条从接收者到卫星上行链路发送站的“隧道”,因而不能适应网络拓扑结构的动态变化.文章提出了一种动态路由算法,它能用于具有单向链路的网络，并能适应网络拓扑结构的动态变化. |
| 关键词: 单向链路,单向网络,路由算法,距离向量,卫星通信. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家攀登计划基金资助. |
|
| A Routing Algorithm for Network with Unidirectional Links |
|
HUANG Hao,WU Li-fa,CHEN Dao-xu,XIE Li,SUN Zhong-xiu
|
| Abstract: |
| An inexpensive satellite receiver can receive high bandwidth traffic from a satellite, while no bandwidth from the receiver to the satellite is provided. Therefore the connection between the satellite and the satellite receiver is unidirectional. The existing routing protocols stand on the fact that any links are bi-directional. They can not handle unidirectional links. Some scholars use a tunneling method to solve this problem, but the tunneling method needs a fixed back channel from satellite receiver to the satellite uplink station. It can not adapt to dynamic topology change. In this paper, the authors propose a dynamic routing algorithm that can be applied to networks with unidirectional links. The routing algorithm can also adapt to the change of network topology. |
| Key words: Unidirectional link, unidirectional network, routing algorithm, distance vector, satellite communication. |
