Archive:: International Journal of Wireless Communications and Mobile Computing:: Science Publishing Group

Volume 3, Issue 6, November 2015

Spectrum Sharing in Cognitive Radio Work Using Goodput Mathematical Model for Perfect Sensing, Zero Interference and Imperfect Sensing, Non Zero Interference

Ojo Festus Kehinde, Fagbola Felix Adetunji

Issue: Volume 3, Issue 6, November 2015

Pages: 58-65

Received: 28 August 2015

Accepted: 16 September 2015

Published: 26 September 2015

DOI: 10.11648/j.wcmc.20150306.11

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Abstract: In recent years, there has been increase in the demand for spectrum allocation as wireless communication witness rapid growth on a daily basis. Literatures have established that this spectrum is scarce and more than 70% of the available spectrum is not utilized optimally. This paper proposes a model called Goodput model by which the under-utilized ... Show More

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Design and Development of a BlueGS Gateway for Bluetooth and GSM Protocols

Edgar Manuel Cano Cruz, Juan Gabriel Ruiz Ruiz, Luis Alberto Hernández Montiel

Issue: Volume 3, Issue 6, November 2015

Pages: 66-71

Received: 17 September 2015

Accepted: 29 September 2015

Published: 14 December 2015

DOI: 10.11648/j.wcmc.20150306.12

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Abstract: The new generation of mobile devices with embedded applications is one of the most rapidly growing technologies in the Wireless Networks. In this paper, we propose to combine the functions and capabilities of the maturity wireless protocols Bluetooth and GSM technologies, to design a powerful gateway tool for embedded systems: the BlueGS system. In... Show More

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Modeling and Simulation of Phase Noise Effect on 256-QAM

Bourdillon Odianonsen Omijeh, Ejioeto Evans Ibara

Issue: Volume 3, Issue 6, November 2015

Pages: 72-76

Received: 20 October 2015

Accepted: 29 October 2015

Published: 14 December 2015

DOI: 10.11648/j.wcmc.20150306.13

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Abstract: This paper models the effect of phase-noise on a 256-QAM Modulator using Computer Aided Design tool called Matlab/Simulink. By remodeling and varying the noise parameter in the AWGN channel of an expert–system based simulink model, and studying the impact of these variations on the BER of the system, values were recorded for every instance of simul... Show More

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