A directional modulation (DM) technique using a phased array to produce the modulation is
presented. By phase shifting each element correctly, the desired amplitude and phase of …

Submarine optical transmission systems are commonly operated with constant output power
amplifiers. The Gaussian Noise (GN) model of propagation was generally developed in the …

In underwater acoustic communication, the Doppler shift can severely degrade
demodulation performance. In addition, multipath signals can have the Doppler shifts that …

A general framework for the bit error rate (BER) analysis of quadrature amplitude modulation
(QAM) systems is presented. This analysis is valid for any QAM system with independent bit …

All practical orthogonal frequency-division multiplexing (OFDM) systems require a prefix to
eliminate intersymbol interference (ISI) at the receiver. Cyclic prefix (CP) and zero padding …

Traditionally, antenna systems have been designed to achieve reliable wireless
communication, while the problem of securing that communication from eavesdropping was …

In underwater acoustic communication, nonuniform Doppler shift can severely degrade
demodulation performance. Nonuniform Doppler shift causes nonuniform phase shifts and …

In underwater acoustic communication between surface and underwater vehicles, the
nonuniform Doppler shift can degrade demodulation performance severely depending on …

Link adaptation is an important component of contemporary wireless networks that require
high spectral efficiency and service a variety of network applications/configurations. By …

The optimal bit-wise demodulator for M-ary pulse amplitude modulation (PAM) over the
additive white Gaussian noise channel is analyzed in terms of uncoded bit-error rate (BER) …