CORD: Energy-Efficient Reliable Bulk Data Dissemination in Sensor Networks
CORD: Energy-Efficient Reliable Bulk Data Dissemination in Sensor Networks
复制标题
DOI：
10.1109/infocom.2008.106
复制
发表时间：
2008-04
期刊：
影响因子：
--
通讯作者：
Leijun Huang;Sanjeev Setia
中科院分区：
文献类型：
--
作者：
Leijun Huang;Sanjeev Setia
本文提出了一种可靠的批量数据传播协议CORD，用于将大数据对象传播到大规模传感器网络中的所有节点。与众所周知的可靠数据传播协议（例如，其主要设计准则是减少对象传播的延迟）不同，CORD的主要目标是使能量消耗最小化。为了实现其目标，CORD采用了两个阶段的方法，在该方法中，对象被传递到网络中的一个子集的节点，形成一个连接的支配集在第一阶段，并在第二阶段的剩余节点。此外，CORD在网络中的节点上安装协调的睡眠时间表，由此不参与接收或发送数据的节点可以关闭它们的无线电以减少它们的能量消耗。我们评估的性能CORD实验室和室外传感器网络测试平台上，并通过广泛的模拟。我们的研究结果表明，与tinyOS的事实上的网络重编程协议相比，CORD显着降低了可靠数据传播的能耗，同时实现了相当的延迟。
This paper presents CORD, a reliable bulk data dissemination protocol for propagating a large data object to all the nodes in a large scale sensor network. Unlike well- known reliable data dissemination protocols such as Deluge whose primary design criterion is to reduce the latency of object propagation, CORD's primary goal is to minimize energy consumption. To achieve its goals CORD employs a two phase approach in which the object is delivered to a subset of nodes in the network that form a connected dominating set in the first phase, and to the remaining nodes in the second phase. Further, CORD installs a coordinated sleep schedule on the nodes in the network whereby nodes that are not involved in receiving or transmitting data can turn off their radios to reduce their energy consumption. We evaluated the performance of CORD experimentally on both an indoor and outdoor sensor network testbed and via extensive simulations. Our results show that in comparison to Deluge (the de facto network reprogramming protocol for TinyOS) CORD significantly reduces the energy consumption for reliable data dissemination while achieving a comparable latency.