Practical Interference Alignment and Cancellation for MIMO Underlay Cognitive Radio Networks with Multiple Secondary Users

In the underlay cognitive radio approach, secondary users (SUs) are allowed to transmit their messages as long as the negative impact on the performance of the primary user (PU) is below a certain threshold. This paper considers a MIMO underlay cognitive radio network with a single PU and multiple SUs.

A global shift in the standard of living has caused significant growth in greenhouse carbon emissions (GHG), with the TV and video streaming industry accounting for 4% of total global emissions—double that of the aviation industry, which stands at 2%. While the TV and video industry has historically been seen as a relatively low-carbon emitter, today’s increasin…

Abstract—Ubiquitous connectivity is vital for emerging appli cations like extended reality, factory automation, and robotics, necessitating low latency, high data rates, and reliability in both downlink and uplink. From the network protocol perspective, successfully supporting these new use cases hinges on the network being resilient enough to address the hetero…