摘要
提出一种基于等级的无线体域网(WBAN)QoS框架,将WBAN中的QoS分为3个等级。利用IEEE802.15.4的信标模式中基于时隙的CSMA/CA机制、保障时隙以及传感器节点内部的流量区分实现了QoS框架。仿真结果表明提出的QoS框架可以满足WBAN对QoS的需求。
A quality of service framework based on grade for WBAN that have three different grades was proposed. Utilizing time slot-based CSMA/CA of beacon enabled model of IEEE 802.15.4, guaranteed time slot and traffic differentiation,the QoS framework was implemented. Simulation results indicate the QoS framework can meet the QoS requirements of WBAN.
出处
《电信科学》
北大核心
2014年第5期81-87,93,共8页
Telecommunications Science
关键词
无线体域网
服务质量
保障时隙调度
退避指数
wireless body area network
quality of service
guaranteed time slot scheduling
backoff exponent
