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Extensive Experimentations on Opportunistic Routing in Wireless Sensor Networks

机译:无线传感器网络中机会路由的广泛实验

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摘要

In this paper, we design and experiment ODYSSE (Opportunistic Duty cYcle based routing protocol for wirelesS Sensor nEtworks) protocol. It combines three main mechanisms: (i) duty cycle, where nodes alternate between active and sleep states, (ii) opportunistic routing where routing tables do not exist and the next hop is elected once the packet arrives, and (iii) source coding with LDPC (Low-Density Parity-Check) codes in order to face packet losses while minimizing energy consumption. We focus on two heterogeneous scenarios: bulk image transmission and infrequent events reporting. Modeling the average waiting delay of forwarders, we show that simple relay selection strategies are effective. We used 45 Arduino nodes communicating with IEEE 802.15.4 (XBee) within the large platform FIT IoT-LAB (IoT-LAB is part of the large platform FIT: Future Internet of Things). We implement and extensively study the behavior and performance of our proposal ODYSSE. We show that the three techniques fit perfectly, yielding a robust low complexity protocol for highly constrained nodes in typical IoT applications.
机译:在本文中,我们设计和实验了ODYSSE(用于无线传感器nEtworks的基于机会占空比的路由协议)协议。它结合了三种主要机制:(i)占空比,其中节点在活动状态和睡眠状态之间交替;(ii)机会路由,其中​​路由表不存在,一旦数据包到达,则选择下一跳;以及(iii)使用LDPC(低密度奇偶校验)码是为了在数据包丢失的同时最大程度地降低能耗。我们关注两种异构场景:批量图像传输和不频繁事件报告。对转发器的平均等待延迟进行建模,我们表明简单的中继选择策略是有效的。我们在大型平台FIT IoT-LAB(IoT-LAB是大型平台FIT:未来物联网)的一部分中使用了与IEEE 802.15.4(XBee)通信的45个Arduino节点。我们实施并广泛研究了提案ODYSSE的行为和性能。我们展示了这三种技术完美契合,为典型的物联网应用中高度受限的节点提供了一个健壮的低复杂度协议。

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