## 6 Conclusions
(2015) [PERSON]; [PERSON]; [PERSON] Energy-efficient resource allocation in LTE based MIMO-OFDMA systems with user rate constraints. _IEEE Trans. Veh. Technol_**2015**, _64_, 185-197. [CrossRef]
* [PERSON] and [PERSON] (2014) [PERSON]; [PERSON]; [PERSON] An efficient downlink radio resource allocation with carrier aggregation in LTE-advanced networks. _IEEE Trans. Mob. Comput._**2014**, _13_, 2229-2239. [CrossRef]
* [PERSON] et al. (2018) [PERSON]; [PERSON]; [PERSON] Optimum radio resource management in carrier aggregation based LTE-advanced systems. _IEEE Trans. Veh. Technol._**2018**, _67_, 580-589. [CrossRef]
* [PERSON] et al. (2021) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] QoS-aware joint component carrier selection and resource allocation for carrier aggregation in 5G. In Proceedings of the 2021 IEEE International Conference on Communications (ICC), Montreal, QC, Canada, 14-23 June 2021; pp. 1-6. * [PERSON] et al. (2014) [PERSON]; [PERSON]; [PERSON]; [PERSON] Design and performance analysis of an energy-efficient uplink carrier aggregation scheme. _IEEE J. Sel. Areas Commun._**2014**, _32_, 197-207. * [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Joint downlink and uplink resource allocation for energy-efficient carrier aggregation. _IEEE Trans. Wirel. Commun._**2015**, _14_, 3207-3218. [CrossRef]
* ETSI (2022) ETSI. Feasibility Study for Further Advancements for E-UTRA (Release 10), 3 GPP TR 36.912 Version 10.0.0, April 2011. Available online: [[https://www.etsi.org/deliver/etsi_tr/136990_136999/136912/10.00.00.60/tr_136912v100000p.pdf](https://www.etsi.org/deliver/etsi_tr/136990_136999/136912/10.00.00.60/tr_136912v100000p.pdf)]([https://www.etsi.org/deliver/etsi_tr/136990_136999/136912/10.00.00.60/tr_136912v100000p.pdf](https://www.etsi.org/deliver/etsi_tr/136990_136999/136912/10.00.00.60/tr_136912v100000p.pdf)) (accessed on 21 November 2022). * ETSI (2014) ETSI. Medium Access Control (MAC) Protocol Specification (Release 10), 3 GPP TS 36.321 Version 10.10.0, January 2014. Available online: [[https://www.etsi.org/deliver/etsi_ts/136300_136399/136321/10.10.00.60/ts_136321v101000p.pdf](https://www.etsi.org/deliver/etsi_ts/136300_136399/136321/10.10.00.60/ts_136321v101000p.pdf)]([https://www.etsi.org/deliver/etsi_ts/136300_136399/136321/10.10.00.60/ts_136321v101000p.pdf](https://www.etsi.org/deliver/etsi_ts/136300_136399/136321/10.10.00.60/ts_136321v101000p.pdf)) (accessed on 21 November 2022). * [PERSON] et al. (2013) [PERSON]; [PERSON]; [PERSON] A channel feedback model with robust SINR prediction for LTE systems. In Proceedings of the 2013 European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, 8-12 April 2013; pp. 1866-1870. * [PERSON] et al. (2009) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Channel allocation based on Kalman filter prediction for downlink OFDMA systems. In Proceedings of the IEEE 70 th Vehicular Technology Conference Fall, Anchorage, AK, USA, 20-23 September 2009; pp. 1-4. * [PERSON] et al. (2013) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] A LTE downlink scheduling based on CQI predicted by neural network. _J. Beijing Univ. Posts Telecommun._**2013**, _36_, 45-49. * [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON]; [PERSON] A channel quality indicator (CQI) prediction scheme using feed forward neural network (FF-NN) technique for MU-MIMO LTE system. In Proceedings of the IEEE 2 nd International Symposium on Telecommunication Technologies (ISIT), Langkawi, Malaysia, 24-26 November 2015; pp. 17-22. * [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON] Enhanced effective SNR prediction for LTE downlink. In Proceedings of the 2015 IEEE/CIC International Conference on Communications in China (ICCC), Shenzhen, China, 2-4 November 2015; pp. 1-6. * [PERSON] and [PERSON] (2002) [PERSON]; [PERSON] Classification and regression by random forest. _R. News_**2002**, _23_, 18-22. * [PERSON] and [PERSON] (2006) [PERSON]; [PERSON] Dual methods for nonconvex spectrum optimization of multicarrier systems.