Carrier Aggregation for Cooperative Cognitive Radio Networks
Author | Diamantoulakis, Panagiotis D. |
Author | Pappi, Koralia N. |
Author | Muhaidat, Sami |
Author | Karagiannidis, George K. |
Author | Khattab, Tamer |
Available date | 2021-01-27T11:06:56Z |
Publication Date | 2017 |
Publication Name | IEEE Transactions on Vehicular Technology |
Resource | Scopus |
ISSN | 189545 |
Abstract | The ever-increasing demand for mobile Internet and high-data-rate applications poses unique challenging requirements for 5G mobile networks, including spectrum limitations and massive connectivity. Cognitive radio and carrier aggregation (CA) have recently been proposed as promising technologies to overcome these challenges. In this paper, we investigate joint relay selection and optimal power allocation in an underlay cooperative cognitive radio with CA, taking into account the availability of multiple carrier components in two frequency bands, subject to outage probability requirements for primary users (PUs). The secondary user network employs relay selection, where the relay that maximizes the end-to-end sum rate is selected, assuming both decode-and-forward and amplify-and-forward relaying. The resulting optimization problems are optimally solved using convex optimization tools, i.e., dual decomposition and an efficient iterative method, allowing their application in practical implementations. Simulation results illustrate that the proposed configuration exploits the available degrees of freedom efficiently to maximize the SU rate, while meeting the PU average outage probability constraints. 1 1967-2012 IEEE. |
Sponsor | Manuscript received May 27, 2016; revised October 2, 2016; accepted November 7, 2016. Date of publication December 2, 2016; date of current version July 14, 2017. The work of P. D. Diamantoulakis, G. K. Karagiannidis, and T. Khattab was supported by the NPRP under Grant NPRP 6-1326-2-532 from the Qatar National Research Fund (a member of Qatar Foundation). This work was presented in part at the IEEE Wireless Communications and Networking Conference (WCNC), Doha, Qatar, Apr. 2016. The review of this paper was coordinated by Prof. D. B. da Costa. |
Language | en |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Subject | Amplify-and-forward (AF) carrier aggregation (CA) cognitive radio (CR) decode-and-forward (DF) dynamic power allocation interference relay selection |
Type | Conference Paper |
Pagination | 5904-5918 |
Issue Number | 7 |
Volume Number | 66 |
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