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COEXISTENCE OF IEEE 802.15.4 WITH IEEE 802.11b

open access: yesICTACT Journal on Communication Technology, 2010
The recurrent collocation of IEEE 802.15.4 Wireless Sensor Networks (WSNs) and IEEE 802.11b Wireless Local Area Networks (WLANs) consequence in coexistence issues, as these networks share the same 2.4GHz Industrial, Scientific, and Medical (ISM) band. As
G.M. Tamilselvan, A. Shanmugam
doaj   +2 more sources

Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks [PDF]

open access: yesSensors, 2016
This paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA).
Kyou Jung Son   +4 more
doaj   +2 more sources

Delay Analysis of GTS Bridging between IEEE 802.15.4 and IEEE 802.11 Networks for Healthcare Applications [PDF]

open access: yesInternational Journal of Telemedicine and Applications, 2009
We consider interconnection of IEEE 802.15.4 beacon-enabled network cluster with IEEE 802.11b network. This scenario is important in healthcare applications where IEEE 802.15.4 nodes comprise patient's body area network (BAN) and are involved in sensing ...
Jelena Mišić, Xuemin (Sherman) Shen
doaj   +2 more sources

Service Differentiated and Adaptive CSMA/CA over IEEE 802.15.4 for Cyber-Physical Systems [PDF]

open access: yesThe Scientific World Journal, 2013
Cyber-Physical Systems (CPS) that collect, exchange, manage information, and coordinate actions are an integral part of the Smart Grid. In addition, Quality of Service (QoS) provisioning in CPS, especially in the wireless sensor/actuator networks, plays ...
Feng Xia   +4 more
doaj   +2 more sources

An Analytical Model for the Performance Analysis of Concurrent Transmission in IEEE 802.15.4 [PDF]

open access: yesSensors, 2014
Interference is a serious cause of performance degradation for IEEE802.15.4 devices. The effect of concurrent transmissions in IEEE 802.15.4 has been generally investigated by means of simulation or experimental activities.
Cengiz Gezer   +2 more
doaj   +2 more sources

Study on Additional Carrier Sensing for IEEE 802.15.4 Wireless Sensor Networks [PDF]

open access: yesSensors, 2010
Wireless sensor networks based on the IEEE 802.15.4 standard are able to achieve low-power transmissions in the guise of low-rate and short-distance wireless personal area networks (WPANs).
Bih-Hwang Lee   +3 more
doaj   +2 more sources

Impact of LQI-Based Routing Metrics on the Performance of a One-to-One Routing Protocol for IEEE 802.15.4 Multihop Networks

open access: greenEURASIP Journal on Wireless Communications and Networking, 2010
The quality of an IEEE 802.15.4 link can be estimated on the basis of the Link Quality Indication (LQI), which is a parameter offered by the IEEE 802.15.4 physical layer.
Boix Antoni   +2 more
doaj   +1 more source

A novel scheme to improve lifetime and real-time support for IEEE 802.15.4 based wireless personal area networks

open access: diamondMehran University Research Journal of Engineering and Technology, 2023
IEEE 802.15.4 defines the working of physical and media access layers of a Low-Rate Wireless Personal Area Network (LR-WPAN). A LR-WPAN is a low cost, low power, and low data-rate network that offers reasonable lifetime and reliable data transfer within ...
Mairaj Nabi bhatti   +4 more
doaj   +3 more sources

MODELE KOLEJKOWE W ANALIZIE SIECI IEEE 802.15.4

open access: green, 2011
W artykule zaprezentowano wybrane modele kolejkowe w analizie bezprzewodowych sieci sensorowych, bazujących na standardzie IEEE 802.15.4. Zbadano wpływ intensywności napływu zgłoszeń, liczby węzłów oraz rozmiaru przesyłanych danych na średni czas przebywania zadania w systemie.
D. Eljasz
openaire   +3 more sources

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