摘要
为了降低水下传感器网络通信过程中端到端时延,提高发送成功率,平衡节点能耗,延长网络生存时间,在水下传感网基于深度信息的路由协议（Depth Based Routing,DBR）的基础上,提出了基于深度信息的定向路由协议（Depth Based Directional Routing,DBDR）.新算法以源节点与目的节点间线段为轴线建立半径为w的虚拟管道,只有管道内节点才有转发数据资格,管道内节点以基于深度信息的路由协议发送数据包,并提出了新的以节点深度和能量为权重的转发时延算法.基于NS2的仿真表明,与DBR相比较,DBDR协议的端到端时延减少了23%～42%左右,数据包发送成功率达到95%以上,实验结果表明,DBDR可以更好地平衡网络中节点能耗,延长网络生存时间,提高数据包传递成功率,降低了数据包通信时延.
In order to reduce the end to end packet delay and increase the packet delivery ratio in the Underwater Sensor Network（UWSN）,balancing the energy consume of nodes,and extending the network lifetime,a new Depth Based Directional Routing（DBDR）protocol based on the Depth Based Routing（DBR）was proposed.The new protocol sets up a virtual routing pipe with radius w,and its axis is the line between the source node and target node.Only the nodes in the pipe are allowed to forward packets,and the nodes forward packets in the depth based routing protocol.Also,DBDR proposes a forward delay algorithm,sets the depth and rest energy as weight factors.In the comparison experiments with DBR on the NS2,the end to end packet delay of DBDR protocol decreased about23%～42%,the packet delivery ratio reached to more than 95%.The results show that the protocol not only can better balance the energy consume of nodes and prolong the survival time of the whole network,but also achieve very high packet delivery ratios and much lower end to end delay.
出处
《微电子学与计算机》
CSCD
北大核心
2015年第11期40-45,共6页
Microelectronics & Computer
基金
国家自然科学基金(61262074)
广西可信软件重点实验室开放课题(kx201101)
广西高校优秀人才资助计划(桂教人201065)
广西自然科学回国基金(2012GXNSFCA053009)
广西信息科学实验中心项目
桂林电子科技大学计算机软件创新团队资助项目
广西硕士研究生创新项目基金(YCSZ2014145)
关键词
水下三维传感网
深度信息
定向路由
节点能耗
数据包发送率
端到端时延
under water sensor network（UWSN）
depth information
directional routing
node energy consume
packets delivery ratio
end to end delay
