延迟容忍传感器网络中基于移动协助的数据传输  

Movement-assisted data delivery for delay tolerant mobile sensor networks

作　　者：李慧杰[1] 彭舰[1] 刘唐[1,2] 

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

出　　处：《通信学报》2014年第10期181-191,共11页Journal on Communications

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：提出了基于移动协助的动态数据传输算法(MAD,movement-assisted adaptive data delivery)。在缓冲区域内设置数据缓存节点,让基站在缓冲区内周期性地移动,数据动态地复制给更有可能到达缓冲区并且剩余能量较高的节点,然后基站在移动中将缓存节点中的数据进行收集。MAD是由数据传输和队列管理2部分组成。前者根据节点的运动趋势和剩余能量计算节点的转发概率,后者通过消息的生存时间和消息的最大复制数确定队列中消息发送的优先级及丢弃方法。仿真结果表明,与其他策略相比,MAD在传输成功率和网络寿命方面具有更好的性能。A novel data delivery method named movement-assisted adaptive ~data delivery （MAD） was proposed. Thedata cache nodes were deployed in the buffer and the base station moves in the~ buffer regularly. The data was forwardedto the nodes which likely moved to the buffer and had the higher remaining energy, and the base station collects data inthe moving process. MAD contains two parts, data forwarding and queue management. The former makes the decision bythe movement trend and the residual energy. The latter was based on the size of the survival time and the replication.Simulation results show that MAD had relatively higher delivery ratio and longer network lifetime.

关 键 词：延迟容忍移动传感器网络 数据收集 移动协助 动态数据传输 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]