基于Sink轨迹固定的异构延迟容忍网络数据传输机制  

Data Transmission Algorithm Based on Path-Fixed Sink in Heterogeneous Delay Tolerant Mobile Sensor Networks

作　　者：彭舰[1] 徐飚[1] 孙彦清[1] 刘唐[1,2] 

机构地区：[1]四川大学计算机学院,成都610065 [2]四川师范大学基础教学学院,成都610068

出　　处：《北京邮电大学学报》2014年第3期53-57,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金资助项目(61303204;U1333113);四川省科技支撑计划基金资助项目(2012GZX0088-1;2011GZ0188);四川师范大学科研基金资助项目(13KYL06)

摘　　要：提出了一种基于sink简单固定轨迹的动态数据传输算法,算法由数据传输策略和队列管理机制组成,适用于异构延迟容忍移动无线传感器网络.在每一次运动开始,首先判断节点是否可以直接传输消息给汇聚点,然后根据节点能量消耗和传输延迟计算出不同时刻各节点的传输概率,节点根据传输概率进行消息传输或转发.队列管理则根据不同类型消息的生存时间和传输次数来决定对消息的转发和丢弃(被动或主动).实验结果验证了算法的有效性.A dynamic data delivery algorithm is proposed which is composed by data transmission strategy and queue management mechanism. It can be applied to heterogeneous delay tolerant mobile sensor networks. Firstly judge each node whether it can transmit messages directly to the sink; then calculate the node＇ s forward probability at different time. Thereafter the forward probability is calculated based on energy consumption and transmission delay. Each node forwards message by the right method. Queue management obey different survival time and transmission counts of different nodes. Simulations show that this data algorithm has a better effectiveness.

关 键 词：异构延迟容忍移动无线传感器网络 数据收集 动态数据传输 队列管理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]