On the throughput of cognitive radio MIMO systems assisted with UAV relays
Type
Conference PaperKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Date
2017-07-20Online Publication Date
2017-07-20Print Publication Date
2017-06Permanent link to this record
http://hdl.handle.net/10754/625695
Metadata
Show full item recordAbstract
We analyze the achievable rates of a cognitive radio MIMO system assisted by an unmanned aerial vehicle (UAV) relay. The primary user (PU) and the secondary user (SU) aim to communicate to the closest primary base station (BS) via a multi-access channel through the same UAV relay. The SU message is then forwarded from the primary BS to the secondary network with a certain incentive reward as a part of the cooperation protocol between both networks. We propose a special linear precoding scheme to enable the SU to exploit the PU free eigenmodes. We, also, present the expression of the power maximizing both primary and secondary rates under power budget, relay power, and interference constraints. In the numerical results, we evaluate the PU and SU rates of proposed scheme with respect to various problem parameters. We also highlight the effect of the UAV altitude on the SU and PU rates. Finally, we show that the relay matrix variation affects both rates that reach their peaks at different values of the matrix.Citation
Sboui L, Ghazzai H, Rezki Z, Alouini M-S (2017) On the throughput of cognitive radio MIMO systems assisted with UAV relays. 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC). Available: http://dx.doi.org/10.1109/IWCMC.2017.7986412.Conference/Event name
13th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2017Additional Links
http://ieeexplore.ieee.org/document/7986412/ae974a485f413a2113503eed53cd6c53
10.1109/IWCMC.2017.7986412