摘要
针对基于无线传感器网络的大田农业智能灌溉系统,分析了灌溉控制子网的网络拓扑结构,设计了一种分布式二级路由协议(DTTR).该协议由簇内路由和簇间路由2个部分组成,前者采用基于TDMA的星型单跳组网方式,后者采用多跳Mesh组网方式.在簇间多跳路由算法中引入博弈理论,利用多阶段有限次重复博弈及基于LQI的链路质量度量方法,较好地解决了网络在多种约束下的均衡问题.分析与仿真结果表明,与常用的MintRoute协议相比,DTTR协议能在保证数据传送可靠性的基础上平衡节点能量消耗,降低由于个别节点暂时能量耗尽而导致网络阶段性失效的危险,吞吐率提高约25%,剩余能量标准差降低约30%.
As for the agriculture intelligent irrigation system based on wireless sensor networks（WSNs）,the topology of the irrigation control sub-network is analyzed and a distributed two-tier routing（DTTR） protocol is proposed.The protocol includes intra-cluster and inter-cluster routing schemes.The former is a single-hop star network based on the time division multiple access（TDMA） technique while the latter is a multi-hop mesh network.Game theory is introduced in the inter-cluster multi-hop routing scheme.With the utilization of multistage finitely repeated games and the metric method based on link quality indication（LQI）,the energy balance problem under multiple constraints is solved.The analysis and simulation results show that,compared with the MintRoute protocol,the DTTR protocol can balance the energy consumption of nodes with a guarantee of the transmission reliability,and the phase failure probability of networks caused by energy depletion of individual nodes can be decreased.Moreover,the throughput ratio increases about 25% and the standard deviation of residual energy decreases about 30%.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第3期441-445,共5页
Journal of Southeast University：Natural Science Edition
基金
国家重点基础研究发展计划(973计划)资助项目(2007CB310606)
国家自然科学基金资助项目(60872004)
高等学校科技创新工程重大项目培育资金资助项目(708046)
东南大学移动通信国家重点实验室自主研究课题资助项目(2009A08)
关键词
无线传感器网络
博弈论
分簇
路由协议
wireless sensor network
game theory
cluster
routing protocol
