A distributed sleep mechanism for energy-efficiency in non-beacon-enabled IEEE 802.15.4 networks

2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD) Pub Date : 2015-09-01 DOI:10.1109/CAMAD.2015.7390516

R. Kiyumi, S. Vural, C. Foh, R. Tafazolli

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引用次数: 7

Abstract

The IEEE 802.15.4 protocol is widely adopted as the MAC sub-layer standard for wireless sensor networks, with two available modes: beacon-enabled and non-beacon-enabled. The non-beacon-enabled mode is simpler and does not require time synchronisation; however, it lacks an explicit energy saving mechanism that is crucial for its deployment on energy-constrained sensors. This paper proposes a distributed sleep mechanism for non-beacon-enabled IEEE 802.15.4 networks which provides energy savings to energy-limited nodes. The proposed mechanism introduces a sleep state that follows each successful packet transmission. Besides energy savings, the mechanism produces a traffic shaping effect that reduces the overall contention in the network, effectively improving packet delivery ratio. Based on traffic arrival rate and the level of network contention, a node can adjust its sleep period to achieve the highest packet delivery ratio. Performance results obtained by ns3 simulations validate these improvements as compared to the IEEE 802.15.4 standard.

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在非信标启用的IEEE 802.15.4网络中提高能源效率的分布式睡眠机制

IEEE 802.15.4协议作为无线传感器网络的MAC子层标准被广泛采用，有信标使能和非信标使能两种模式。非信标启用模式更简单，不需要时间同步;然而，它缺乏明确的节能机制，这对于在能量受限的传感器上部署至关重要。本文提出了一种用于非信标IEEE 802.15.4网络的分布式睡眠机制，为能量有限的节点提供节能。提出的机制引入了一个睡眠状态，在每个成功的数据包传输之后。除了节能之外，该机制还产生了流量整形效应，减少了网络中的总体争用，有效地提高了分组分发率。根据流量到达率和网络竞争程度，节点可以调整自己的休眠时间，以达到最高的数据包发送率。与IEEE 802.15.4标准相比，ns3模拟获得的性能结果验证了这些改进。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)

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