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Cross Layer Adaptation of Check Intervals in Low Power Listening MAC Protocols for Lifetime Improvement in Wireless Sensor Networks

机译:低功耗侦听MAC协议中检查间隔的跨层适应以延长无线传感器网络的使用寿命

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摘要

Preamble sampling-based MAC protocols designed for Wireless Sensor Networks (WSN) are aimed at prolonging the lifetime of the nodes by scheduling their times of activity. This scheduling exploits node synchronization to find the right trade-off between energy consumption and delay. In this paper we consider the problem of node synchronization in preamble sampling protocols. We propose Cross Layer Adaptation of Check intervals (CLAC), a novel protocol intended to reduce the energy consumption of the nodes without significantly increasing the delay. Our protocol modifies the scheduling of the nodes based on estimating the delay experienced by a packet that travels along a multi-hop path. CLAC uses routing and MAC layer information to compute a delay that matches the packet arrival time. We have implemented CLAC on top of well-known routing and MAC protocols for WSN, and we have evaluated our implementation using the Avrora simulator. The simulation results confirm that CLAC improves the network lifetime at no additional packet loss and without affecting the end-to-end delay.
机译:专为无线传感器网络(WSN)设计的基于前导采样的MAC协议旨在通过安排节点的活动时间来延长节点的寿命。此调度利用节点同步来找到能耗和延迟之间的正确折衷。在本文中,我们考虑了前同步码采样协议中的节点同步问题。我们提出了检查间隔的跨层自适应(CLAC),这是一种旨在减少节点的能耗而又不显着增加延迟的新颖协议。我们的协议基于估计沿多跳路径传播的数据包所经历的延迟来修改节点的调度。 CLAC使用路由和MAC层信息来计算与数据包到达时间匹配的延迟。我们已经在WSN的知名路由和MAC协议之上实现了CLAC,并且已经使用Avrora模拟器评估了我们的实现。仿真结果证实,CLAC可以在不增加数据包丢失且不影响端到端延迟的情况下改善网络寿命。

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