Iterative robust downlink beamforming in cognitive radio networks
Imran Wajid, Hristina Nikolaeva, Marius Pesavento · 2011
The problem of multi-user worst-case robust downlink beamforming and power allocation in a cognitive radio (CR) framework is studied. The goal is to minimize the total transmitted power while providing the secondary users (SUs) with a minimum acceptable quality-of-service (QoS), with additional cons