一种Ad hoc网络中的虚电路建立策略  

Bidirectional virtual circuit setup scheme in wireless Ad hoc network

作　　者：张艳[1] 张娟 牛大伟[3] 袁燕 

机构地区：[1]南京审计学院计算机系,江苏南京210029 [2]南京军区通信装备技术大队,江苏南京210016 [3]解放军理工大学通信工程学院,江苏南京210007 [4]解放军第二炮兵士官学校,山东青州262500

出　　处：《解放军理工大学学报（自然科学版）》2006年第2期107-111,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60302023)

摘　　要：为了实现A d hoc网络中的端到端的可靠传输,利用带外信令与带内信令相结合的方式建立虚电路。业务发起点利用带内信令携带的链路建立消息和资源预留消息来预留反向虚电路,业务接收端在反向虚电路建立成功后,利用带外信令预约正向虚电路。对于网络拓扑变化所引起链路故障,采用反向链路故障通告和局部路由恢复相结合的策略进行修复。当虚电路建立起来后,可利用虚电路的面向连接特性,应用端到端的报头压缩策略,达到进一步减小网络中控制开销并缩小端到端的处理时延的目的。In order to realize reliable communication from end to end in Ad hoc networks, a bidirectional virtual circuit can be established through both in-band and out-band signaling. The service sponsor establishes reverse virtual circuit by in-band signaling and the service receiver sets up forward circuit by outband signaling. The link fallure due to dynamic topology can be restored by reverse error report and partial reroute scheme. With virtual circuit, quality of service guarantee and end to end header compression could be implemented to reduce the overhead and the end to end latency of the network thanks to the connection-oriented characteristic of virtual circuit.

关 键 词：多协议标签交换 标签分配 双向链路 

分 类 号：TN915[电子电信—通信与信息系统]