In this paper, an alternative approach to design linear equalization algorithms for optical
coherent receivers is introduced. Using widely linear (WL) complex analysis, a general …

For nonstationary observations, potentially second-order (SO) noncircular, the SO optimal
complex filters are time variant (TV) and, under some conditions of noncircularity, widely …

Unmanned aerial vehicles (UAVs) can be integrated into wireless sensor networks (WSNs)
for smart city applications in several ways. Among them, a UAV can be employed as a relay …

One limiting issue in implementing high-speed wireless systems is the impairment
associated with analog processing due to component imperfections. In uplink transmission …

Two main lines of approach can be identified in the recent literature on improper signals and
widely linear operations. The augmented complex formulation based on the signal and its …

We consider the problem of mitigating narrowband interference (NBI) in conventional
orthogonal frequency-division multiplexing (OFDM) systems, wherein the presence of the …

Recently, we proposed a successive narrowband interference (NBI) cancellation method for
orthogonal frequency-division multiplexing (OFDM) systems, which empowers the …

In this letter, we consider the problem of equalizing finite-impulse response (FIR) channels
in orthogonal frequency-division multiplexing (OFDM) systems, which employ at the receiver …

A full performance analysis of the widely linear (WL) minimum variance distortionless
response (MVDR) beamformer is introduced. While the WL MVDR is known to outperform its …

Interference alignment (IA) is a prospective method to achieve interference management in
wireless networks. On the other hand, jamming can be deemed either as a potential threat to …