This paper proposes a new method for rejecting the Continuous Wave Interferences (CWI) in the Global Positioning System (GPS) receivers. The proposed filter is made by cascading an adaptive Finite Impulse Response (FIR) filter and a Wavelet Packet Transform (WPT) based filter. Although adaptive FIR filters are easy to implement and have a linear phase, they create self-noise in the rejection of...

Interference alignment is a new technique combining transmitter precoding and receiver interference suppression to achieve the optimal multiplexing gain in interference networks by exploiting knowledge of channel state information of all transmission links. So far closed form solutions for the transmit filters have only been found in certain cases. Also the feasibility of interference alignment...

We consider a K-transmit dualreceive diversity communication system employing K antennas for transmission and two antennas for reception. The desired signal is corrupted by N interfering sources apart from additive white Gaussian noise. The channel is Rayleigh fading. As a result, the channel matrix for the desired signal and the propagation vectors of the interferers have zero-mean complex Gau...

PURPOSE To examine the effects of temporal and spectral interference of masking noise on sentence recognition for listeners with cochlear implants (CI) and normal-hearing persons listening to vocoded signals that simulate signals processed through a CI (NH-Sim). METHOD NH-Sim and CI listeners participated in the experiments using speech and noise that were processed by bandpass filters. Depen...

The phase crossing statistics and random FM noise are studied for Nakagami-q fading channel model, in the presense of interference. A closed-form joint PDF of phase process and random FM noise is derived. Expression for the level crossing rate of the phase process when crossing arbitrary level of phase, is also obtained. All results are compared with the known results in special case of zero in...

This paper investigates the performance of linear detectors namely the Minimum Mean-Squared-Error (MMSE) and the Zero-Forcing (ZF) suboptimal detection schemes for Multiple Input Multiple Output (MIMO) signals over an additive white Gaussian noise (AWGN) channel. Unlike the ZF detector which suffers from noise enhancement, it will be shown that the MMSE detector which takes noise into account p...

Wireless communication devices in embedded computational platforms have become increasingly common. As these device become more compact, radio frequency interference (RFI) from other subsystems, such as clocks and buses, becomes more severe and degrades the performance of the communication systems. The interference from these components is impulsive in nature, therefore standard symbol detectio...

Nowadays, multimedia services over wireless networks are increasingly popular. With multicast, many mobile stations can join the same video group and share the same radio resource to efficiently increase frequency utilization. However, users may be located at different positions, and so suffer different degrees of path loss and interference, and receive a different signal-to-interference and no...