Outage capacity analysis of MC-CDMA based on cognitive radio network

摘要

Upcoming high data rate demand of wireless networks create radio frequency spectrum scarcity. This paper presents performance evaluation of cooperative relaying cognitive wireless network under Rayleigh fading channel. Our network scenario consists of a primary transmitter (PT) and primary receiver (PR) as well as a group of secondary transmitters (STs) and secondary receivers (SRs). Our network scenario also consists of a grouped STs into active and inactive. Only one active ST may transmit data at the same time slot using the licensed channel of PT If the transmit power of ST does not exceed predefined interference threshold. We also derived a closed-form expression for the outage capacity with the Rayleigh fading channel. The outage capacity analysis showed that numerical results are matched closely with simulation results.