LBS: A Beacon Synchronization Scheme With Higher Schedulability for IEEE 802.15.4 Cluster-Tree-Based IoT Applications

ZigBee is widely used in wireless network in Internet of Things (IoT) applications to remotely sensing and automation due to its unique characteristics compared to other wireless networks. According to ZigBee classification of IEEE 802.15.4 standard, the network consists of four layers. The ZigBee topology is represented in second layer. Furthermore, the ZigBee topology consists of three topologies, star, tree and mesh. Also there are many transmission bands allowed in physical layer, such as 2.4 GHz, 915 MHz, 868 MHz. The aim of this paper is to evaluate the effect of ZigBee topologies on End to End delay and throughput for different transmission bands. Riverbed Modeler is used to simulate multiple ZigBee proposed scenarios and collect the results. The results of the study recommend which topology should be used at each transmission band to provide lowest End to End delay or obtain maximum throughput, which is case sensitive in some IoT applications that required for example minimum delay time or sending high amount of data.

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An Efficient Mechanism to Improve Convergecast Traffic in Cluster-tree Wireless Sensor Networks Based on IEEE 802.15.4

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society ◽

10.1109/iecon.2019.8927736 ◽

2019 ◽

Cited By ~ 1

Author(s):

Miguel Lino ◽

Vitor Vasconcelos ◽

Alvaro Ian ◽

Erico Leao ◽

Andre Soares ◽

...

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Ieee 802.15.4 ◽

Wireless Sensor ◽

Cluster Tree ◽

Efficient Mechanism

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Adaptive Duty Cycling in IEEE 802.15.4 Cluster Tree Networks Using MAC Parameters

Proceedings of the 18th ACM International Symposium on Mobile Ad Hoc Networking and Computing - Mobihoc '17 ◽

10.1145/3084041.3084069 ◽

2017 ◽

Cited By ~ 3

Author(s):

Nikumani Choudhury ◽

Rakesh Matam ◽

Mithun Mukherjee ◽

Lei Shu

Keyword(s):

Ieee 802.15.4 ◽

Cluster Tree ◽

Duty Cycling ◽

Tree Networks

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An Efficient Superframe Structure with Optimal Bandwidth Utilization and Reduced Delay for Internet of Things Based Wireless Sensor Networks

Sensors ◽

10.3390/s20071971 ◽

2020 ◽

Vol 20 (7) ◽

pp. 1971 ◽

Cited By ~ 3

Author(s):

Sangrez Khan ◽

Ahmad Naseem Alvi ◽

Muhammad Awais Javed ◽

Byeong-hee Roh ◽

Jehad Ali

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Internet Of Things ◽

Large Scale ◽

Ieee 802.15.4 ◽

Fine Tuning ◽

Wireless Sensor ◽

Bandwidth Utilization ◽

Iot Applications ◽

Ieee 802.15.4 Standard

Internet of Things (IoT) is a promising technology that uses wireless sensor networks to enable data collection, monitoring, and transmission from the physical devices to the Internet. Due to its potential large scale usage, efficient routing and Medium Access Control (MAC) techniques are vital to meet various application requirements. Most of the IoT applications need low data rate and low powered wireless transmissions and IEEE 802.15.4 standard is mostly used in this regard which offers superframe structure at the MAC layer. However, for IoT applications where nodes have adaptive data traffic, the standard has some limitations such as bandwidth wastage and latency. In this paper, a new superframe structure is proposed that is backward compatible with the existing parameters of the standard. The proposed superframe overcomes limitations of the standard by fine-tuning its superframe structure and squeezing the size of its contention-free slots. Thus, the proposed superframe adjusts its duty cycle according to the traffic requirements and accommodates more nodes in a superframe structure. The analytical results show that our proposed superframe structure has almost 50% less delay, accommodate more nodes and has better link utilization in a superframe as compared to the IEEE 802.15.4 standard.

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