电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2014年
15期
74-77
,共4页
徐斌%季敏%谭国平
徐斌%季敏%譚國平
서빈%계민%담국평
网络编码%拥塞控制%分组投递率%总开销
網絡編碼%擁塞控製%分組投遞率%總開銷
망락편마%옹새공제%분조투체솔%총개소
network coding%congestion control%packet delivery ratio%total overhead
为解决移动自组网中网络编码多播路由协议因业务传输负载增大,而产生的网络拥塞现象,本文提出了一种可靠的基于TCP Vegas窗口拥塞控制的网络编码多播路由协议。该协议的核心思想是发送节点采用发送窗口自调整和反馈消息触发发送窗口调整的机制,综合的调节数据包的发送速率,来改善网络拥塞现象,从而可以降低丢包率。仿真结果表明,当传输负载增大时,基于窗口拥塞控制的网络编码多播路由协议可使得系统的总开销大大降低,分组投递率获得了相对的提升。
為解決移動自組網中網絡編碼多播路由協議因業務傳輸負載增大,而產生的網絡擁塞現象,本文提齣瞭一種可靠的基于TCP Vegas窗口擁塞控製的網絡編碼多播路由協議。該協議的覈心思想是髮送節點採用髮送窗口自調整和反饋消息觸髮髮送窗口調整的機製,綜閤的調節數據包的髮送速率,來改善網絡擁塞現象,從而可以降低丟包率。倣真結果錶明,噹傳輸負載增大時,基于窗口擁塞控製的網絡編碼多播路由協議可使得繫統的總開銷大大降低,分組投遞率穫得瞭相對的提升。
위해결이동자조망중망락편마다파로유협의인업무전수부재증대,이산생적망락옹새현상,본문제출료일충가고적기우TCP Vegas창구옹새공제적망락편마다파로유협의。해협의적핵심사상시발송절점채용발송창구자조정화반궤소식촉발발송창구조정적궤제,종합적조절수거포적발송속솔,래개선망락옹새현상,종이가이강저주포솔。방진결과표명,당전수부재증대시,기우창구옹새공제적망락편마다파로유협의가사득계통적총개소대대강저,분조투체솔획득료상대적제승。
In order to solve the problem of the NCRM performance that is the network congestion occurring when the traffic loads sending too quickly in the mobile Ad hoc network. The article makes a mechanism of window-based TCP Vegas congestion control participate in NCRM to implement a window-based congestion control mechanism for multicast routing mechanism WCC-NCRM. The core idea in protocol is that the sending node comprehensive adjustment the sending speed of packets accord to the mechanism of send-window adjustment itself and feedback message triggering window adjustment,which also improve the defect of network congestion, thereby possibly reducing packet drop rate. The simulations reveal that the packet delivery ratio and total overhead of WCC-NCRM are superior to NCRM.