O. Iosif and I. Banica, “On the Analysis of Packet Scheduling in Downlink 3GPP LTE System,” Proceedings of the 4th International Conference on Communication Theory, Reliability and Quality of Service, Budapest, 17-22 April 2011, pp. 99-102.
 J. Huang, V. G. Subramanian, R. Agrawal and R. A. Berry, “Downlink Scheduling and Resource Allocation for OFDM Systems,” IEEE Transactions on Wireless Communications, Vol. 8, No.1, 2009, pp. 288-296. doi:10.1109/T-WC.2009.071266
 A. Wang, Y.-Y. Qiu, L. Lin and S. Li, “An Adaptive Sub-Carrier and Power Allocation Algorithm with QoS Guarantee for OFDMA System,” 10th IEEE Conference on High Performance Computing and Communications, Dalian, 25-27 September 2008, pp. 492-497.
 G. H. Kumar, P. H. Krishnarao and K. S. R. Krishna, “Two-Stage Algorithm for Sub-Carrier, Bit and Power Allocation in OFDMA Systems,” International Journal of Computer Science and Communications, Vol. 1, No. 2, 2010, pp. 51-54.
 I. Koutsopoulos and L. Tassiulas, “Cross-Layer Adaptive Techniques for Throughput Enhancement in Wireless OFDM-Based Networks,” IEEE/ACM Transactions on Networking, Vol. 14, No. 5, 2006, pp. 1056-1066. doi:10.1109/TNET.2006.882842
 T. Thonabalasinghan, S. Hanley, L. L. H. Andrew and J. Papandripoulos, “Joint Allocation of Sub-Carriers and Transmit Powers in a Multi-User OFDM Cellular Network,” IEEE International Conference on Communications, Istanbul, 11-15 June 2006, pp. 269-274. doi:10.1109/ICC.2006.254739
 C. Koutsimanis and G. Fodor, “A Dynamic Resource Allocation Scheme for GBR Services in OFDMA Networks,” Proceedings of the IEEE Conference of Communications, Beijing, 19-23 May 2008, pp. 2524-2530.
 I. C. Wong and B. L. Evans, “Optimal Resource Allocation in OFDMA Systems with Imperfect Channel Knowledge,” IEEE Transactions on Communications, Vol. 57, No. 1, 2009, pp. 232-241. doi:10.1109/TCOMM.2009.0901.060546
 N. Zhou, X. Zhu and Y. Huang, “Genetic Algorithm Based Cross-Layer Resource Allocation for Wireless OFDM Networks with Heterogeneous Traffic,” 17th European Signal Processing Conference (EUSIPCO), Glasgow, 24-28 August 2009, pp. 1656-1659.
 M. Ergen, S. Coleri and P. Varaiya, “QoS Aware Adaptive Resource Allocation Techniques for Fair Scheduling in OFDMA Based Broadband Wireless Access Systems,” IEEE Transactions on Broadcasting, Vol. 49, No. 4, 2003, pp. 362-370. doi:10.1109/TBC.2003.819051
 A. M. Ajofoyinbo and K. Orolu, “A Dynamic Programming Based Technique for Optimal Allocation of Radio Resource in Multi-User Cellular Long-Term Evolution (LTE) Downlink,” 10th WSEAS International Conference on Telecommunications and Informatics (TELE-INFO’11), Lanzarote, Spain, 27-29 May 2011, pp. 107-113.