Service-outage capacity maximization in cognitive radio

Abstract

In spectrum sharing based cognitive radio networks, unlicensed users (secondary users) are allowed to communicate over the same frequency band as the licensed users (primary users) as long as the required quality-of-service (QoS) of the licensed users is guaranteed. Motivated by delay-sensitive information transmission applications, this paper focuses on a cognitive radio network, where a secondary user (SU) sharing the same frequency band with an existing primary user (PU) wishes to transmit delay-insensitive as well as delay-sensitive data while the PU is interested in meeting a minimum rate guarantee for delay-sensitive services. Typically, PU's are oblivious to the SU's existence and has..