Performance Evaluation of Fractal Wavelet Packet Transform on Wireless Communication Systems

Performance Evaluation of Fractal Wavelet Packet Transform on Wireless Communication Systems

fractal wavelet packet transform; M-ary phase shift keying (M-ary PSK); orthogonal wavelet division multiplexing (OWDM); Rayleigh frequency selective fading channel;spectrum efficiency;wireless communication system

The performance of the phase shift keying (PSK) modulation technique over additive white Gaussian noise (AWGN)and multipath propagation channels generally becomes worse for higher-order modes. Therefore, a new modulation technique should be provided in order to have a system that iscapable of transmitting data with higher efficiency while maintaining better performance at the same time. This paper presents the development of a fractalwavelet packet transform incorporated withintheM-ary PSK system, namely M-ary PSK orthogonal wavelet division multiplexing (OWDM), which is proposed to obtain high performance of modulation in terms of spectrum efficiency and bandwidth resourcesintended for wireless communication systems. To demonstrate performanceimprovementover a Rayleigh frequency selective fading channeland in the presence of AWGN noise, the proposed system wasevaluated and compared to the basic modulation system and M-ary PSK employingorthogonal frequency division multiplexing (OFDM). The performance results show that M-ary PSK OWDM hadbetter performance in comparison with M-ary PSK OFDM and the conventional system. By utilizing 16subcarriers, QPSK OWDM achievedbit error rate performance improvement from 1.5×10-3to 1×10-4 forEb/N0of 20 dB with efficient bandwidth

Mohammad Ridwan Effendi1*, Rheyuniarto Sahlendar Asthan1,2& Achmad Munir

https://journals.itb.ac.id/index.php/jictra/article/view/21350/6660

Institut Teknologi Bandung

2024

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English

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