Distributed precoding is a meaningful topic in the cell-free massive multiple input multiple
output system. This system faces challenges in performance degradation due to the …

Spectrum sharing has been recognized as a key component for 5G and beyond wireless
networks. Recent trials have revealed the business value of spectrum sharing via the …

In dynamic time-division-duplexing networks, the available resources per cell can be freely
allocated to either uplink (UL) or downlink (DL) depending on the instantaneous traffic …

Spectrum shortage is a fundamental problem in wireless networks, and this problem
becomes increasingly acute with the rapid proliferation of wireless devices. To address this …

In this paper, the problem of joint design of spectrum sensing (SS) and receive
beamforming, with reference to a cognitive radio (CR) system, is considered. The aim of the …

This paper considers a downlink ultradense heterogeneous cloud radio access network,
which guarantees seamless coverage and can provide high date rates. In order to reduce …

This chapter considers different aspects of coordination within a spectrum sharing
environment, with the existence of imperfect and possibly even distributed channel …

The ever-increasing demand for data-hungry wireless services and rapid proliferation of
wireless devices in sub-6 GHz band have pushed the current wireless technologies to a …

(English) The increase of wireless devices offering high data rate services limits the
coexistence of wireless systems sharing the same resources in a given geographical area …

This dissertation presents cooperative beamformer techniques and possible practical
implementations to mitigate the sophisticated interference scenarios in dynamic time …