摘要
作为传感器网络的高级形式,多媒体传感器网络在环境监控、安全监控以及医疗保健等诸多应用领域发挥重要作用。首先介绍一种提供区分服务的分簇传感器网络体系结构,进而提出一种服务感知的业务调度策略,使用非抢占的优先级排队模型保障两类服务对时延的要求,以提供满足监控应用需求的QoS。理论分析和仿真试验证明了方法的有效性。较之其它典型方法,方法更适用于可提供区分服务的多媒体传感器网络。
As the advanced form of sensor networks, multimedia sensor networks can provide rich multimedia information, which doubtlessly benefits a plethora of data hungry applications such as environment monitoring, health care, emergency response, and video security. A cluster-based architecture of sensor networks was described, which provided Differentiated Service （DiffServ）. Based on the queuing model with non-preemptive priority, a service-aware traffic scheduling strategy was provided, which could ensure delay-constrained requirements to satisfy the given QoS of surveillance application. The theoretical analysis and simulation experiments vertify the effectiveness of the proposed method. Compared with other typical methods, the method is fitter for multimedia sensor networks which provide DiffServ.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2007年第23期5591-5596,共6页
Journal of System Simulation
基金
国家"八六三"高技术研究发展计划(2006AA01Z304)
国家自然科学基金(90612013)
北京市自然科学基金(4062024)。
关键词
服务感知
多媒体传感器网络
业务调度
排队模型
service aware
multimedia sensor networks
traffic scheduling
queuing model
