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The implementation of a conventional genetic algorithm (GA) to maximize the output electrical power or minimize cost and weight from the linear generator (LG) suffers from the fact that, it takes huge time to find solution for optimization because, it analyzes all possible permutations and combinations of pole teeth size, teeth gap, depth of teeth, pitch, stator teeth size, air-gap, stator and translator...
In almost every permanent magnet linear generator (PMLG), demagnetization would greatly degrade the electricity generation capability over time. This paper proposes a novel PMLG which consists of a permanent magnet excitation generator (PMEG) to supply electrical excitation to the field winding of an electromagnetic linear generator (EMLG) which functions as the main power generator. The proposed...
The performance of energy efficiency in a radio-over-fiber system utilizing M-QAM (quadrature amplitude modulation), OOK (On-Off-keying) and M-PAM (Pulse amplitude modulation) is highlighted. The performance of single channel CO-OFDM and with 10GHz channels pacing at 10-Gb/s data rate is shown through the optisystem for different modulation schemes and different fiber lengths at different receiving...
In this paper we consider the problem of increasing the throughput of cognitive radio in a cognitive radio network by forming coalitions among cognitive radio users. Recently there have been numerous studies exploring the benefits of the cooperation in a cognitive radio network. The cooperation tends to increase the spectrum sensing performance which in turn results in increased transmission opportunities...
Signal attenuation caused by duststorm is one of the major problems in utilization of microwave bands for terrestrial and space communication especially at desert and semi desert area. This paper presented a mathematical model developed to predict the microwave signal attenuation due to duststorm. The proposed model enables the convenient calculation of the microwave signal path attenuation which...
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