The Development of a GPS Based RF Signal Strength Measurement System

2013 ◽  
Vol 309 ◽  
pp. 294-301
Author(s):  
Méhes László
Keyword(s):  
Wireless Communication ◽  
Communication Networks ◽  
Measurement System ◽  
Signal Strength ◽  
Wireless Communication Networks ◽  
Strength Measurement ◽  
Gps Positioning ◽  
Wireless Nodes ◽  
Rf Signal

Nowadays the wireless communication networks are the bigger part in the communication area. It is very important to choose the best place for the wireless nodes. To support the placement of these devices I wanted to create a signal strength measurement system that I implemented on ZigBee platform with GPS positioning.

The effects of Tx./Rx. pointing errors on the performance efficiency of local area optical wireless communication networks

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mahmoud M. A. Eid ◽  
Ahmed Nabih Zaki Rashed ◽  
Mohd. Sultan Ahammad ◽  
Bikash Kumar Paul ◽  
Kawsar Ahmed
Keyword(s):  
Wireless Communication ◽  
Communication Networks ◽  
Local Area ◽  
Cavity Surface ◽  
Wireless Communication Networks ◽  
Q Factor ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
Pointing Errors ◽  
Emitting Lasers

Abstract This study presents the effects of Tx./Rx. pointing errors on the performance efficiency of local area optical wireless communication networks. The received signal power and max Q factor are measured in the presence of vertical-cavity surface-emitting lasers (VCSELs) bias current and modulation current at maximum propagation distance for the wireless network. The signal is enhanced with increasing of bias and modulation peak currents of the VCSEL device. The optimum received power and max. Q factor is also examined at Tx./Rx. the pointing error of 0.1 mrad and propagation reach of 5 km at available bit rates transmission of 10 Gb/s.

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