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We evaluate an estimation scheme of unknown signal's bandwidth estimation with an energy detector based on a windowed fast Fourier transform (FFT) for cognitive radio system. When the cognitive node obtains the spectrum sensing results after a received time domain signal is processed with FFT, the detection results have a detection error at the adjacent FFT bins of the received signal frequency with...
Orthogonal Frequency Division Multiplexing has become a key element of todays wireless communication systems. However, its sensitivity to oscillator phase noise is responsible for common phase error (CPE) and inter-carrier interference (ICI) which greatly degrades the overall system performance. In this contribution, we address the problem of reducing the effects of phase noise in an OFDM system operating...
Orthogonal frequency division multiplexing (OFDM) is the modulation scheme of choice for digital video broadcasting-handheld (DVB-H) which is required to operate under high mobility conditions resulting in significant Inter-Carrier Interference (ICI). Under these conditions, the conventional one-tap per subcarrier channel estimation and equalization is suboptimal since it does not account for ICI...
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