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When the wireless signal propagates between the transmitter (Tx) and the receiver (Rx), it will undergoes many variations as diffraction, scattering or reflecting due to the presence of many obstacles along the propagation area. The objective of channel modeling is to retrieve how the signal can be distorted or attenuated. In this paper, a statistical model was established to characterize indoor Ultra...
In this paper, the application of wavelet denoising to the estimated Power Delay Profile (PDP) from measured UWB indoor channel responses was investigated. Unlike the conventional thresholding scheme, which cut-off the values below a threshold to suppress artifacts of the measurement system, the wavelet-based denoising scheme is smoother. Wavelet denoising accuracy depends on several factors, like...
Recently, multicarrier modulations is becoming the chosen modulation technique for wireless communications. The Wavelet Packet Modulation (WPM) is applied as a novel alternative to the Orthogonal Frequency Division Multiplexing (OFDM). In this paper, Wavelet Packet Transform based multicarrier modulation is presented and introduced using both Zero Forcing (ZF) and Minimum Mean Square Error (MMSE)...
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