| Abstract: | Two closed‐form solutions for the approximation bound in relation to resource allocation for multiple‐input multiple‐output (MIMO) ‐based cognitive radio systems are provided. The design problem is actualized in the underlay scenario for a single‐user strategy. The concentration is mainly on the Ergodic capacity constrained by an outage probability at the secondary receiver, regarding our imperfect knowledge of the interference channel at the transmitter. © 2016 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. |
