摘要
针对多种类型数据具有不同传输质量需求的信息采集应用,提出了一种自适应的数据收集机制。每个节点关联一个持续变化的"转发概率"参数,每个消息关联一个动态调整的"重要因子"参数,这2个参数自适应确定消息在网络中的复制次数,使数据收集机制既能满足数据传输性能的要求,又具有小的网络开销。模拟实验结果验证了该收集机制在传输性能和网络开销之间达到很好折衷。
An adaptive data gathering scheme was proposed for the application which different transmission quality was needed for different kinds of data. In the scheme, every sensor was associated with a forwarding probability parameter; every message was associated with an importance factor parameter. The two parameters determined adaptively the count of replication of a message, while meeting the transmission quality requirement and minimizing the network overhead. Experiment results show that the proposed data gathering scheme can achieve the tradeoff between transmission performance and network overhead.
出处
《通信学报》
EI
CSCD
北大核心
2008年第11期186-193,共8页
Journal on Communications
基金
国家高技术研究发展计划("863"计划)基金资助项目(2008AA01Z217)
国家自然科学基金资助项目(60673178
604340302008) ~~
关键词
移动传感器网络
数据收集
机会转发
缓存管理
mobile sensor network
data gathering
opportunistic forwarding
buffer management