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- research-articleAugust 2022
Unselfish Cooperative Game-Based Communication Optimization of ECG Monitoring Network
CIUP '22: Proceedings of the 2022 International Conference on Computational Infrastructure and Urban PlanningPages 13–17https://doi.org/10.1145/3546632.3546894With the increasing incidence rate of cardiovascular diseases, the prevention and treatment of heart disease has been highly concerned. people have developed a variety of real-time ECG monitoring systems, and some even built a wireless sensor network (...
- research-articleMay 2020
A New Method to Find a High Reliable Route in IoT by Using Reinforcement Learning and Fuzzy Logic
Wireless Personal Communications: An International Journal (WPCO), Volume 112, Issue 2Pages 967–983https://doi.org/10.1007/s11277-020-07086-8AbstractRecently, Internet is moving quickly toward the interaction of objects, computing devices, sensors, and which are usually indicated as the Internet of things (IoT). The main monitoring infrastructure of IoT systems main monitoring infrastructure ...
- research-articleAugust 2017
Performance Improvement of ZigBee Networks in Coexistence of Wi-Fi Signals
ICICM '17: Proceedings of the 7th International Conference on Information Communication and ManagementPages 45–49https://doi.org/10.1145/3134383.3134408In this paper, the performance of ZigBee networks in presence of Wi-Fi interference is evaluated. ZigBee networks performance is adversely affected by Wi-Fi signals, since Wi-Fi channels overlap with ZigBee. Besides, power consumption of nodes is also ...
- articleAugust 2017
Tree TDMA MAC Algorithm Using Time and Frequency Slot Allocations in Tree-Based WSNs
Wireless Personal Communications: An International Journal (WPCO), Volume 95, Issue 3Pages 2575–2597https://doi.org/10.1007/s11277-016-3938-9In this paper, we propose a tree-based time division multiple access (Tree TDMA) media access control (MAC) algorithm based on the IEEE 802.15.4 PHY standard. The method involves the simultaneous use of two algorithms, a time slot allocation algorithm (...
- research-articleSeptember 2016
New empirical path loss model for wireless sensor networks in mango greenhouses
Computers and Electronics in Agriculture (COEA), Volume 127, Issue CPages 553–560https://doi.org/10.1016/j.compag.2016.07.011FSPL and 2-Ray models are inaccurate to be used in conjugation with foliage models to predicted total path loss in vegetation environments and it has (38.20% and 65.74%) MPAE.The path loss model based COST235 and FSPL was the best performance to the ...
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- ArticleJuly 2016
A Random Priority based Scheduling Strategy for Wireless Sensor Networks using Contiki
ICETE 2016: Proceedings of the 13th International Joint Conference on e-Business and TelecommunicationsPages 121–128https://doi.org/10.5220/0005949301210128In recent years, wireless sensor networks (WSNs) have experienced a number of implementations in various implementations which include smart home networks, smart grids, smart medical monitoring, telemetry networks and many more. The Contiki operating ...
- articleJuly 2016
Timing Structure Mechanism of Wireless Sensor Network MAC layer for Monitoring Applications
International Journal of Distributed Systems and Technologies (IJDST-IGI), Volume 7, Issue 3Pages 1–20https://doi.org/10.4018/IJDST.2016070101This paper aims at designing a Timing Structure Mechanism TSM for Wireless Sensor Network WSN MAC, with specifying its respective logical topology, especially suitable to the monitoring applications, differentiated and characterized from the existing ...
- articleApril 2016
GreenBikeNet: an Intelligent Mobile Application with Green Wireless Networking for Cycling in Smart Cities
Mobile Networks and Applications (MNET), Volume 21, Issue 2Pages 352–366https://doi.org/10.1007/s11036-015-0652-xIn this paper, we introduce a mobile application with intelligent systems to provide services for cyclists and enhance their cycling experiences in smart cities. The application utilizes smartphones and low-power ZigBee technology for ad-hoc networking. ...
- research-articleSeptember 2015
Energy harvested IEEE 802.15.4 wireless body area network
BodyNets '15: Proceedings of the 10th EAI International Conference on Body Area NetworksPages 247–253https://doi.org/10.4108/eai.28-9-2015.2261429With the increasing demand of wireless body area network (WBAN) for patient monitoring systems, it is necessary to develop efficient energy management systems to either prolong node battery replacement time or to develop battery-less WBAN nodes. In this ...
- research-articleMarch 2015
Device and operation mechanism for non-beacon IEEE802.15.4/Zigbee nodes running on harvested energy
The power supply is one of the main constraints when operating Wireless Sensor Networks (WSN). The most obvious energy source for a WSN node is a rechargeable or non-rechargeable battery. Batteries seriously limit WSNs usage and are associated to the ...
- articleJanuary 2015
A Robust Demodulator for OQPSK---DSSS System
Circuits, Systems, and Signal Processing (CSSP), Volume 34, Issue 1Pages 231–247https://doi.org/10.1007/s00034-014-9844-zIEEE802.15.4 standard has quickly become a benchmark in the era of Internet of things. The mandatory mode of 2.4 GHz physical layer of IEEE802.15.4 standard employs offset quadrature phase shift keying (OQPSK) modulation with direct sequence spread ...
- ArticleApril 2014
Cluster and Grid Based Performance Evaluation on Energy Consumption for IEEE 802.15.4/Zigbee Wireless Sensor Network
CSNT '14: Proceedings of the 2014 Fourth International Conference on Communication Systems and Network TechnologiesPages 138–142https://doi.org/10.1109/CSNT.2014.36Wireless sensor network is mainly used for real time applications which raise fundamental problems. These problems are like limited energy resources and replacement task. Therefore good functioning of such networks depends on energies of nodes. In this ...
- ArticleMay 2012
Fuzzy Inference Based Delay and Channel Aware Communication in Low-Power Sensor Networks
DCOSS '12: Proceedings of the 2012 IEEE 8th International Conference on Distributed Computing in Sensor SystemsPages 384–391https://doi.org/10.1109/DCOSS.2012.56Traditionally, transmission power is adjusted dynamically to overcome unreliability over lossy links in energy-constrained Wireless Sensor Networks (WSNs). The network node increases its transmission power to achieve immunity against link errors or ...
- ArticleMay 2012
TBoPS: A Tree Based Distributed Beacon Only Period Scheduling Mechanism for IEEE 802.15.4
DCOSS '12: Proceedings of the 2012 IEEE 8th International Conference on Distributed Computing in Sensor SystemsPages 341–346https://doi.org/10.1109/DCOSS.2012.43IEEE 802.15.4 standard specifies a beacon-enabled mode which provides a synchronization environment using beacon transmissions. However, this mode is designed for single hop networks and its use in multi-hop networks is not straight-forward. The main ...
- ArticleApril 2012
A Reconfigurable Wireless Digital Phase Modulator and Demodulator
A reconfigurable digital phase modulator (RDPM) is proposed in this paper. Different phase modulation and demodulation, such as BPSK, QPSK and MSK are achieved. In the modulator, different phase modulation waveform can be generated by changing the base ...
- research-articleFebruary 2012
Modified local repair in AODV for LoWPANs
ICUIMC '12: Proceedings of the 6th International Conference on Ubiquitous Information Management and CommunicationArticle No.: 14, Pages 1–5https://doi.org/10.1145/2184751.2184769Wireless sensor networks are widely used in many applications such as environment monitoring, intelligent transportation system (ITS) and health care monitoring. In wireless sensor networks, a large number of sensor nodes are deployed without ...
- ArticleOctober 2011
Distributed Fast Beacon Scheduling for Mesh Networks
MASS '11: Proceedings of the 2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor SystemsPages 727–732https://doi.org/10.1109/MASS.2011.79Despite its many benefits, the use of the beacon-enabled mode in multi-hop communications has been limited due to beacon collision problems. In addition, although there has been a lot of research on the beacon scheduling for a tree topology, only a few ...
- ArticleOctober 2011
Distributed Duty Cycle Management (DDCM) for IEEE 802.15.4 Beacon-Enabled Wireless Mesh Sensor Networks
MASS '11: Proceedings of the 2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor SystemsPages 721–726https://doi.org/10.1109/MASS.2011.78This paper proposes an extension to the current IEEE802.15.4 standard in which flexible mesh networking in the low power beacon mode is enabled through the use of a distributed duty cycle management (DDCM) strategy in conjunction with a distributed time ...
- ArticleJuly 2010
Experimental Evaluation of Beacon Scheduling Mechanisms for Multihop IEEE 802.15.4 Wireless Sensor Networks
SENSORCOMM '10: Proceedings of the 2010 Fourth International Conference on Sensor Technologies and ApplicationsPages 226–231https://doi.org/10.1109/SENSORCOMM.2010.42Recently, several scheduling techniques to enable multihop communications in the beacon enabled mode of the IEEE 802.15.4 standard have been proposed. Using the beacon enabled mode allows node synchronization and hence energy savings which is an ...
- ArticleMay 2010
Congestion Control for Industrial Wireless Communication Gateway
ICICTA '10: Proceedings of the 2010 International Conference on Intelligent Computation Technology and Automation - Volume 01Pages 1019–1022https://doi.org/10.1109/ICICTA.2010.342The wireless communication technologies, such as wireless sensor network, can bring great economic benefits to industrial plants. But the open channel and multi-hop network topology will influence its real-time and reliable performance. Funneling effect ...