The issue of supporting mobility in Wireless Sensor Networks is recently attracting increasing attention within the research community as new-born application scenarios require the deployment of hybrid network architectures composed of fixed and mobi

Array signal processing, is a part of signal processing that uses sensors that are organized in patterns, or arrays, to detect signals and to determine information about them. Accurate estimation of a signal direction of arrival (DOA) has received co

The increasing need for high data-rate transmissions over time- or frequency-selective fading channels has drawn attention to modulation schemes with high spectral efficiency such as QAM. With the aim of increasing the “diversity order” of the signal