【摘要】 随着异构无线多媒体传感器网络应用日益广泛,如何满足不同数据源的要求,为其提供区分服务,保证其服务质量成为研究热点问题。该文在引进区分队列服务算法的基础上,提出了解决方法。该方法通过设置分组生存时间来实现在标量节点能够及时可靠地向汇聚节点报告事件发生的前提下,保证实时分组优先转发。仿真实验显示,汇聚节点在规定时间内收到了足够多的事件相关标量分组,实时分组时延满足实时性要求。表明文中方法是正确有效的。更多还原

【Abstract】 With the rapid development of heterogeneous wireless multimedia sensor networks,how to satisfy all the requirement of data source and provide QoS for it becomes a hot research issue.Differentiated Queuing Service(DQS) is introduced into wireless multimedia sensor network.Based on the algorithm,scalar node can inform sink in time and real time traffic can be forwarded rapidly through setting packet lifetime.The result of simulation show that the sink can gather enough event scalar packets and real time packets delay is satisfied.The effectiveness of the method is verified.更多还原