Dual-hop amplify-and-forward transmission with imperfect channel estimates at the relay
Hadzi-Velkov Z, Michalopoulos DS, Karagiannidis GK, Schober R (2012)
Publication Type: Conference contribution
Publication year: 2012
Journal
Pages Range: 4110-4115
Conference Proceedings Title: IEEE International Conference on Communications
Event location: Ottawa
ISBN: 9781457720529
Abstract
With reference to the typical three-node amplify-and-forward (AF) relaying setup, where a single relay assists the communication between a source terminal and a destination terminal, we investigate the effect of outdated channel state information (CSI) at the relay on the overall performance. In particular, we consider CSI-assisted (i.e., variable-gain) AF relaying and derive expressions for the outage and the error probability for the case where the relay gain is adapted based on outdated estimates of the source-relay channel, when operating over Nakagami-m fading. The obtained expressions are functions of the scale and shape fading parameters, as well as the correlation coefficient between the actual source-relay channel and its corresponding estimate. Numerical results reveal a considerable degradation of the overall performance, when CSI acquisition is not perfect. © 2012 IEEE.
Authors with CRIS profile
Involved external institutions
Aristotle University of Thessaloniki
Greece (GR)
University of British Columbia
Canada (CA)
Saints Cyril and Methodius University of Skopje / Универзитет „Св. Кирил и Методиј“ во Скопје
Republic of North Macedonia (MK)
Greece (GR)
University of British Columbia
Canada (CA)
Saints Cyril and Methodius University of Skopje / Универзитет „Св. Кирил и Методиј“ во Скопје
Republic of North Macedonia (MK)
How to cite
APA:
Hadzi-Velkov, Z., Michalopoulos, D.S., Karagiannidis, G.K., & Schober, R. (2012). Dual-hop amplify-and-forward transmission with imperfect channel estimates at the relay. In IEEE International Conference on Communications (pp. 4110-4115). Ottawa, CA.
MLA:
Hadzi-Velkov, Zoran, et al. "Dual-hop amplify-and-forward transmission with imperfect channel estimates at the relay." Proceedings of the 2012 IEEE International Conference on Communications, ICC 2012, Ottawa 2012. 4110-4115.
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