Budiman P. A. Rohman

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The rapid progression in wireless networking has suggested dynamic spectrum allocation to increase spectrum utilization. Cognitive radio (CR) is a key technology to enable dynamic spectrum access. Spectrum sensing provide spectrum awareness to CR system. Although energy detection (ED) is commonly used for spectrum sensing method, it gives poor performance(More)
WiMAX is a wireless technology that was developed to overcome the limitations of wireline networks to meet the needs of Broadband Wireless Access (BWA) services to customers. As standardized, fixed WiMAX uses OFDM as its physical air interface. Therefore, it also suffers from high PAPR. To solve this problem, Partial Transmit Sequence (PTS) is used in this(More)
An adaptively compensated multiband spectral subtraction (MBSS) is presented in this paper. In this research, the adaptive compensation in the MBSS utilizes artificial neural network. The purpose of this compensation is to improve the quality of speech signal after denoising of MBSS step. This compensation is calculated adaptively depend on the MBSS(More)
Pulse compression is a method for improving the range resolution of the radar systems. Linear Frequency Modulation (LFM) is a type of pulse compression which is commonly used in the radar applications because of its simplicity and Doppler tolerance. However this method provides relatively high first peak sidelobe level within around -13.3 dB. This paper(More)
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