Interference is traditionally viewed as a performance limiting factor in wireless
communication systems, which is to be minimized or mitigated. Nevertheless, a recent line of …

This paper proposes prediction-and-sensing-based spectrum sharing, a new spectrum-
sharing model for cognitive radio networks, with a time structure for each resource block …

This paper presents optimal sum-rate precoding and beamforming strategies, to enable
serving multiple and single data streams per user, respectively, for multi-user MIMO-OFDM …

The spectrum handoff is highly critical as well as challenging in a cognitive radio ad hoc
network (CRAHN) due to lack of coordination among secondary users (SUs), which leads to …

This letter studies joint transmit beamforming and antenna selection at a secondary base
station (BS) with multiple primary users (PUs) in an underlay cognitive radio multiple-input …

Massive MIMO systems were utilized in overlay Cognitive Radio (CR) networks to allow
simultaneous primary and secondary data transmission while enhancing the spectral …

This paper studies the transceiver design for multiuser multiple-input multiple-output
cognitive radio networks. Different from the conventional methods which aim at maximizing …

A degree of cooperative diversity has been achieved with the introduction of relay nodes in
wireless networks. However, such approach suffers from spectral efficiency loss. Therefore …

Massive Multiple Input Multiple Output (MIMO) is considered a promising technology to get
high multiplexing gain in the cognitive network. However, the precoder design at the …

Large-scale antennas are crucial for next generation wireless communication systems as
they improve spectral efficiency, reliability and coverage compared to the traditional ones …