Over-the-air testing of wireless devices in heavily loaded reverberation chambers

2020 ◽  
pp. 123-173
Author(s):  
Kate A. Remley ◽  
Chih-Ming Wang ◽  
Robert D. Horansky
Keyword(s):  
Wireless Devices ◽  
Reverberation Chambers

Reverberation chambers for testing wireless devices and systems

2020 ◽  
Vol 9 (2) ◽  
pp. 45-55
Author(s):  
V. Mariani Primiani ◽  
M. Barazzetta ◽  
L. Bastianelli ◽  
D. Micheli ◽  
E. Moglie ◽  
...  
Keyword(s):  
Wireless Devices ◽  
Reverberation Chambers

Configuring and Verifying Reverberation Chambers for Testing Cellular Wireless Devices

2016 ◽  
Vol 58 (3) ◽  
pp. 661-672 ◽  
Author(s):  
Kate A. Remley ◽  
Jos Dortmans ◽  
Catherine Weldon ◽  
Robert D. Horansky ◽  
Thomas B. Meurs ◽  
...  
Keyword(s):  
Wireless Devices ◽  
Cellular Wireless ◽  
Reverberation Chambers

On the Use of Reverberation Chambers to Simulate a Rician Radio Environment for the Testing of Wireless Devices

2006 ◽  
Vol 54 (11) ◽  
pp. 3167-3177 ◽  
Author(s):  
C.L. Holloway ◽  
D.A. Hill ◽  
J.M. Ladbury ◽  
P.F. Wilson ◽  
G. Koepke ◽  
...  
Keyword(s):  
Wireless Devices ◽  
Reverberation Chambers

scholarly journals Characterization of Reverberation Chambers for OTA Measurements of Wireless Devices: Physical Formulations of Channel Matrix and New Uncertainty Formula

2012 ◽  
Vol 60 (8) ◽  
pp. 3875-3891 ◽  
Author(s):  
Per-Simon Kildal ◽  
Xiaoming Chen ◽  
Charlie Orlenius ◽  
Magnus Franzen ◽  
Christian S. Lötbäck Patane
Keyword(s):  
Wireless Devices ◽  
Channel Matrix ◽  
Reverberation Chambers

Home Automation Using Bluetooth

2020 ◽  
pp. 675-678
Author(s):  
Mukesh Mahajan ◽  
Astha Dubey ◽  
Samruddhi Desai ◽  
Kaveri Netawate
Keyword(s):  
Temperature Sensor ◽  
Humidity Sensor ◽  
The Other ◽  
Automation System ◽  
Home Automation ◽  
Wireless Devices ◽  
Home Appliances ◽  
Home Automation System ◽  
Condition Systems

This paper reviews basically about Bluetooth based home automation system. It is controlled by PIC microcontroller. Home automation can be defined as the ability to perform tasks automatically and monitor or change status remotely. These include tasks such as turning off lights in the room, locking doors via smartphone, automate air condition systems and appliances which help in the kitchen. Now a days several wireless devices are available such as Bluetooth, Zigbee and GSM. Since Bluetooth is low in cost than the other two and hence is used more. In this paper we have described the methods of automating different home appliances using Bluetooth and pic microcontroller. Different sensors are involved in this system to advance and make it smarter. Sensors such as temperature sensor, liquid sensors, humidity sensor etc. can be used.

scholarly journals An Adaptive Scheduler for Real-Time Operating Systems to Extend WSN Nodes Lifetime

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Roberto Rodriguez-Zurrunero ◽  
Ramiro Utrilla ◽  
Elena Romero ◽  
Alvaro Araujo
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
Research Area ◽  
Rechargeable Batteries ◽  
Wireless Sensor ◽  
Portable Devices ◽  
Wireless Devices ◽  
Changing Environments ◽  
Tasks Scheduling

Wireless Sensor Networks (WSNs) are a growing research area as a large of number portable devices are being developed. This fact makes operating systems (OS) useful to homogenize the development of these devices, to reduce design times, and to provide tools for developing complex applications. This work presents an operating system scheduler for resource-constraint wireless devices, which adapts the tasks scheduling in changing environments. The proposed adaptive scheduler allows dynamically delaying the execution of low priority tasks while maintaining real-time capabilities on high priority ones. Therefore, the scheduler is useful in nodes with rechargeable batteries, as it reduces its energy consumption when battery level is low, by delaying the least critical tasks. The adaptive scheduler has been implemented and tested in real nodes, and the results show that the nodes lifetime could be increased up to 70% in some scenarios at the expense of increasing latency of low priority tasks.

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