Towards the design of efficient nonbeacon-enabled ZigBee networks

Fernández-López, Helena; Afonso, João L.; Correia, J. H.; Simões, Ricardo

doi:10.1016/j.comnet.2012.04.013

Cited by 9 publications

(5 citation statements)

References 28 publications

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“…As to device part in the network, ZigBee characterizes three sorts of devices: ZigBee Coordinator (ZC), ZigBee Router (ZR) and ZigBee End Device (ZED) [12,14].…”

Section: Zigbee Device Objectmentioning

confidence: 99%

“…The ZigBee standard permits the arrangement of three sorts of network topology: Star, Tree, and Mesh [12,13].…”

Section: Zigbee Topologiesmentioning

confidence: 99%

“…Albeit more unpredictable in its development and operation, network topology is described by link/path excess which is known not in enhanced system power and system steering capacity [12,15]. …”

Section: Mesh Topologymentioning

confidence: 99%

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Evaluation of Hybrid Topologies under Mobility of ZigBee Devices using Different Trajectories

Singh¹,

Kaur²,

Gill³

2015

IJCA

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Wireless Sensor Network (WSN) is mostly used in real time applications, like as automobile traffic control, military purpose, medical area and environment examination. ZigBee is a Wireless Personal Area Network (WPAN) based on IEEE 802.15.4 wireless protocol. ZigBee gives short distance communication with low data rate, low power consumption and low complexity. In this paper the performance of hybrid topology is analyzed with OPNET Modeler 14.5 under the mobility of ZigBee End Devices (ZEDs) and ZigBee Coordinators (ZCs) using different trajectories in terms of load, traffic received and data drop. The Results show that when ZEDs and ZCs are move, the Mesh-Tree hybrid topology and Star-Tree hybrid topology gives best performance respectively. We also found that the performance of wireless sensor network for inner square and circle trajectories is superior to outer square trajectory.

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“…As to device part in the network, ZigBee characterizes three sorts of devices: ZigBee Coordinator (ZC), ZigBee Router (ZR) and ZigBee End Device (ZED) [12,14].…”

Section: Zigbee Device Objectmentioning

confidence: 99%

“…The ZigBee standard permits the arrangement of three sorts of network topology: Star, Tree, and Mesh [12,13].…”

Section: Zigbee Topologiesmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Hybrid Topologies under Mobility of ZigBee Devices using Different Trajectories

Singh¹,

Kaur²,

Gill³

2015

IJCA

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“…It was observed experimentally that, during contention periods, most message losses occurred because of an implementation option adopted by the protocol stack manufacturer, 33 whereas few losses occurred because of successive collisions between contending devices. This implementation option refers to the CSMA-CA algorithm implementation and affects the router performance when it competes for the access to the wireless channel with a child device.…”

Section: Ecg Traffic In the Absence Of Hidden Nodesmentioning

confidence: 99%

Remote Patient Monitoring Based on ZigBee: Lessons from a Real-World Deployment

Fernández-López

Afonso²,

Correia³

et al. 2014

Telemedicine and e-Health

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Aim: This work presents detailed experimental performance results from tests executed in the hospital environment for Health Monitoring for All (HM4All), a remote vital signs monitoring system based on a ZigBee Ò (ZigBee Alliance, San Ramon, CA) body sensor network (BSN). Materials and Methods: Tests involved the use of six electrocardiogram (ECG) sensors operating in two different modes: the ECG mode involved the transmission of ECG waveform data and heart rate (HR) values to the ZigBee coordinator, whereas the HR mode included only the transmission of HR values. In the absence of hidden nodes, a non-beacon-enabled star network composed of sensing devices working on ECG mode kept the delivery ratio (DR) at 100%. Results: When the network topology was changed to a 2-hop tree, the performance degraded slightly, resulting in an average DR of 98.56%. Although these performance outcomes may seem satisfactory, further investigation demonstrated that individual sensing devices went through transitory periods with low DR. Other tests have shown that ZigBee BSNs are highly susceptible to collisions owing to hidden nodes. Nevertheless, these tests have also shown that these networks can achieve high reliability if the amount of traffic is kept low. Contrary to what is typically shown in scientific articles and in manufacturers' documentation, the test outcomes presented in this article include temporal graphs of the DR achieved by each wireless sensor device. Conclusions: The test procedure and the approach used to represent its outcomes, which allow the identification of undesirable transitory periods of low reliability due to contention between devices, constitute the main contribution of this work.

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“…Beacon enabled IEEE 802.15.4 is completely defined by a structure called Superframe Structure. This structure consists of two periods, one is active and other is inactive period [4]. The active period consists of three parts, a beacon, a Contention access period (CAP), and a Contention free period (CFP).…”

Section: Introductionmentioning

confidence: 99%

Analysis of So Bo Effect on Collision in Ire 802.15.4 Wireless Sensor Networks

Sumthane¹

2017

IJRASET

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IEEE 802.15.4 standard is one of the best choices for implementation of wireless sensor network. Because it provides low power, low cost and flexible wireless sensor network. In WSNs, if two nodes transmitting at the same time, due to that concurrent transmission packets of both nodes interfere with each other and get corrupted. IEEE 802.15.4 network has many nodes and is almost saturated, the probability of collision is large.IEEE 802.15.4 uses CSMA/CA i.e. Carrier Sense Multiple Access/ Collision Avoidance algorithm to avoid the collision between the packets. Within this work we performed the sets of experiments to detect Collision with the help of IEEE 802.15.4 WSN's hardware kit which contains coordinator (receiver) and wireless sensor nodes (transmitter). Within this work we analyzed the effect of varying BO and SO on packet delivery ratio and collision probability.

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Towards the design of efficient nonbeacon-enabled ZigBee networks

Cited by 9 publications

References 28 publications

Evaluation of Hybrid Topologies under Mobility of ZigBee Devices using Different Trajectories

Evaluation of Hybrid Topologies under Mobility of ZigBee Devices using Different Trajectories

Remote Patient Monitoring Based on ZigBee: Lessons from a Real-World Deployment

Analysis of So Bo Effect on Collision in Ire 802.15.4 Wireless Sensor Networks

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