Outage Probability, Average Transmission Time, and Quality of Experience for Cognitive Radio Networks over General Fading Channels

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Hung Tran, Hans-Jürgen Zepernick, Markus Fiedler, Hoc Phan
Title: Outage Probability, Average Transmission Time, and Quality of Experience for Cognitive Radio Networks over General Fading Channels
Conference name: Euro-NF Conference on Next Generation Internet
Year: 2012
Publisher: IEEE
City: Karlskrona, Sweden
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: htr@bth.se, hjz@bth.se, mfi@bth.se, hph@bth.se
Language: English
Abstract: In this paper, we examine the delay performance in cognitive radio networks (CRNs) over general fading channels where secondary users are allowed to simultaneously access the spectrum licensed by primary users. In particular, subject to the peak interference power constraint, we investigate the effect of general fading channels on the delivery delay of data packets and acknowledgements (ACKs). A lower bound of outage probability and an upper bound of average transmission time are derived by utilizing the concept of timeout. Specifically, we apply the above results to investigate the quality of experience (QoE) for various fading channels, such as one-sided Gaussian, Rayleigh, Nakagami-m and Weibull channels. The numerical results indicate that the delay of ACKs under severe fading leads to a degradation of system performance.
Subject: Telecommunications\General
Keywords: Cognitive Radio Networks, QoE, General Fading Channels, Performance Analysis
Edit