On Multihop Broadcast over Adaptively Duty-Cycled Wireless Sensor Networks
On Multihop Broadcast over Adaptively Duty-Cycled Wireless Sensor Networks
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DOI：
10.1007/978-3-642-13651-1_12
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发表时间：
2010-06
期刊：
影响因子：
--
通讯作者：
S. Lai;B. Ravindran
中科院分区：
文献类型：
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作者：
S. Lai;B. Ravindran
我们考虑的问题，多跳广播自适应占空比无线传感器网络（WSNs）的邻居节点不同时唤醒。我们提出了Hybrid-cast，一个异步和多跳广播协议，它可以应用于低占空比或基于法定人数的占空比调度，其中节点在唤醒时隙的开始发送信标消息。与以前的广播解决方案相比，混合广播实现了广播延迟和广播计数之间更好的折衷。它采用机会数据传输，以减少广播延迟。同时，通过延迟发送和在线选择转发器来减少冗余传输。我们建立了一个给定的占空比时间表的广播计数和广播延迟的上限。我们通过大量的模拟来评估混合铸造。实验结果验证了设计的有效性和效率。
We consider the problem of multihop broadcast over adaptively duty-cycled wireless sensor networks (WSNs) where neighborhood nodes are not simultaneously awake. We present Hybrid-cast, an asynchronous and multihop broadcasting protocol, which can be applied to low duty-cycling or quorum-based duty-cycling schedule where nodes send out a beacon message at the beginning of wakeup slots. Hybrid-cast achieves better tradeoff between broadcast latency and broadcast count compared to previous broadcast solutions. It adopts opportunistic data delivery in order to reduce the broadcast latency. Meanwhile, it reduces redundant transmission via delivery deferring and online forwarder selection. We establish the upper bound of broadcast count and the broadcast latency for a given duty-cycling schedule. We evaluate Hybrid-cast through extensive simulations. The results validate the effectiveness and efficiency of our design.