Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Bluetooth

A 2.4 GHz Differential Class-E power Amplifier with on-chip Transformers for Bluetooth systems

Abbas H. Issa; Ahmed S. Ezzulddin; Sarab M. Ghayyib

Engineering and Technology Journal, 2014, Volume 32, Issue 7, Pages 1695-1706

This work presents the design and simulation of a differential class-E Power Amplifier (PA) for class-1 Bluetooth systems in 0.13 μm RF CMOS technology. The proposed PA can deliver 21.57 dBm output power to a 50 Ω load at 2.4 GHz with 65.59 % Power-Added-Efficiency (PAE) from 1 V supply voltage. In order to achieve fully integrated PA, on-chip balun transformers are designed and improved for converting single-ended input signal to differential signal in the input side and differential signal to single-ended output signal in the output side. The results are obtained using microwave office 2009 (version 9.00).

Bluetooth Performance with Bursty Noise and Traffic

Samah Abdulakreem Mustafa

Engineering and Technology Journal, 2014, Volume 32, Issue 1, Pages 63-73

Bluetooth is a novel radio indoor wireless technology supporting short range portable devices Ad hoc intercommunication. The evaluation of its performance has been receiving more attention lately. In this paper a Personal Area Network (PAN) was set up using few Bluetooth devices to assess Bluetooth's Asynchronous Connection Less (ACL) service of overlapped devices operate in close proximity.
Ad hoc connections in Bluetooth network have been assessed based on
experimental and simulation study in the presence of burst noise and traffics of concurrent transmissions on unlicensed spectrum 2.4 GHz. Measurements and simulation based results are presented to investigate the performance metrics;delivery probability, load and latency. It has been found that burst losses can trigger lengthy retransmission timeout.

Computer Controlled System Using Bluetooth Technology

Ammar Y. Daeef; Raaed K. Ibraheem; Raaed F. Hassan

Engineering and Technology Journal, 2010, Volume 28, Issue 3, Pages 579-592

The implementation of monitoring, controlling, and archiving system with
data communication based on Bluetooth technology is described. Design and
implementation of a temperature sensing and power line frequency measurement
system is presented. The application has been accomplished using Bluetooth USB
dongle. One of the Bluetooth enabled PC acts as a server. The implementation
process consisting of application architecture design, system requirement,
software design, hardware design, establish Bluetooth connection, and
visualization of measurement data is described in detail. Experimental results
show that the designed system is more reliable and easy to use.