فهرس المقالات Orthogonal Frequency Division Multiplexing حرية الوصول المقاله صفحة الملخص نص كامل 1 - Spectrum Sensing of OFDM Signals Utilizing Higher Order Statistics under Noise Uncertainty Environments in Cognitive Radio Systems MOUSUMI HAQUE Tetsuya Shimamura 10.61186/jist.37961.11.43.251