一种基于UWB的自组网络中的QoS机制  

An Operations Intercross Transmitted QoS Mechanism for MAC

作　　者：范金强[1] 雷蕾 郭虹[1] 刘洛琨[1] 

机构地区：[1]解放军信息工程大学信息工程学院通信工程系,河南郑州450002 [2]石家庄市第13中学,河北石家庄050000

出　　处：《通信技术》2008年第7期115-117,共3页Communications Technology

基　　金：国防预研基金资助项目(110010304)

摘　　要：笔者用跳时多址接入,解决超宽带自组网MAC层的实时业务QoS问题。由于超宽带的接入延迟很大,这里提出在节点中将转发业务与本地业务按实时性要求分类,优先级高的先发,优先级低的后发,这样能更好的保证实时业务不会受到接入延迟的影响,并且允许各种业务交叉传输,解决了802.11e中的QoS机制造成的低优先级业务"饿死"的现象。仿真表明:节点中的业务在满足公平接入信道方面取得了很好的效果。The QoS for real time operations of Ad-hoc is solved by TH-UWB, However, for the long delay of access, a mechanism is brought forward, that classifies the transmit and local operations according the nature of time, and sends out first the operations with high priority. The mechanism ensures that the real-time operations cannot impacted by the long access time. And also the problem of the operations with low priority resulted from by 802,11e is also solved. The simulation indicates s good effect.

关 键 词：超宽带 服务质量 接入时延 优先级 

分 类 号：TN915.04[电子电信—通信与信息系统]