Outage Analysis of Spectrum Sharing Cognitive DF Relay Networks Using Outdated CSI Academic Article

abstract

• We investigate the effect of the outdated channel state information (CSI) on the secondary relay-aided network's performance. We carry out the analysis of the outage probability as well as the diversity order of the secondary network (SN) considering three key constraints: 1) maximum transmit power at the secondary transmitter, 2) peak interference power at the primary receiver, and 3) outdated CSI at the secondary-to-primary and secondary-to-secondary links. The performance results show that the relay cluster position, the imperfect CSI of the interference links and of the second hop are the key optimization factors. We show that the correlation coefficient of the second hop link is the key optimization parameter of the diversity order. 2013 IEEE.

authors

• Qaraqe, Khalid

published proceedings

• IEEE COMMUNICATIONS LETTERS

author list (cited authors)

• Tourki, K., Qaraqe, K. A., & Abdallah, M. M.

citation count

• 14

complete list of authors

• Tourki, Kamel||Qaraqe, Khalid A||Abdallah, Mohamed M

publication date

• December 2013

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Communications Letters  Journal

keywords

• Cognitive Relay Networks
• Outage Analysis
• Outdated Csi

Digital Object Identifier (DOI)

• 10.1109/LCOMM.2013.110413.131698

start page

• 2272

end page

• 2275

volume

• 17

issue

• 12

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Flcomm.2013.110413.131698