Prolonging network lifetime with multi-domain cooperation strategies in wireless sensor networks
Prolonging network lifetime with multi-domain cooperation strategies in wireless sensor networks
复制标题
通过无线传感器网络中的多域合作策略延长网络寿命
DOI：
10.1016/j.adhoc.2009.11.004
复制
发表时间：
2010
期刊：
影响因子：
4.8
通讯作者：
B. Tavlı
中科院分区：
文献类型：
--
作者：
K. Bicakci;B. Tavlı
在无线传感器网络中，节点通过作为中继器的多个中间传感器节点将它们从环境中获取的数据转发到基站。如果多个传感器网络紧密地部署在一起，那么它们可以帮助彼此的数据转发，从而使参与这种协作的各方从这种协作中受益(即减少分组转发的能量消耗，延长每个网络的生命周期)。影响协作对传感器网络生存时间影响的参数有很多，如域数、节点密度、网络面积、传播环境、网络拓扑、基站部署等。本文通过线性规划框架研究了多域无线传感器网络中延长网络寿命的协作策略。虽然我们的模型足够详细，足以捕捉到多域合作的本质，但我们有意避免具体实现的细节。因此，我们使用我们的框架来确定在理想但实际的环境中几乎可以实现的性能基准。结果表明，在一定的条件下(稀疏的网络部署和恶劣的传播环境)，与无线传感器网络的非协作域相比，多域协作可以延长无线网络的生命周期一个数量级以上。
In wireless sensor networks nodes forward the data they acquire from the environment towards the base station by relaying through multiple intermediate sensor nodes used as relays. If multiple sensor networks are deployed in close proximity then they can help each others’ data forwarding so that all parties involved in such cooperation benefit from this collaborative effort (i.e., energy consumption for packet relaying reduces and the lifetime of each network is prolonged). There are many parameters that affect the impact of cooperation on sensor network lifetime such as number of domains, node density, network area, propagation environment, network topology, and base station deployment. In this paper we investigate cooperation strategies for prolonging sensor network lifetime in multi-domain wireless sensor networks through a linear programming framework. While our model is detailed enough to capture the essence of the multi-domain cooperation we intentionally avoid implementation specific details. Hence, we use our framework to determine almost achievable performance benchmarks in idealized yet practical settings. Our results show that under certain conditions (sparse network deployment and harsh propagation environment) multi-domain cooperation can extend the wireless network lifetime more than an order of magnitude when compared to non-cooperating domains of wireless sensor networks.