摘要
在延迟容忍的移动无线网络中,为确保消息,进行少副本、短延迟、少能耗的高效传递,选择合适的传输策略至关重要。提出一种新的基于节点位置信息建立的传输概率机制,在消息传递时通过基于传输概率的消息生存时间进行队列的管理、优化。经过仿真实验得出数据,对比现有的几种方式,该策略可以在减少消息副本,缩短传输延迟,提高传输成功率等方面做到不同程度的优化,且效果良好。
In delay tolerant mobile sensor network,delivery scheme is a key point for effective way that offers less copies, delay and high delivery rate. At first,a new real - time delivery possibility mechanism based location information is proposed. Using the possibility to mend the survival time of messages to send. In addition,optimizing the management of message -queue can be made. By simulation, the scheme gets higher message delivery ratio,lower copies and delivery delay.
出处
《现代电子技术》
2009年第21期67-70,共4页
Modern Electronics Technique
关键词
延迟容忍
传输概率
队列管理
生存时间
delay - tolerant
delivery possibility
queue managemant
survival time
