Al-Janabi H. D.Al-Dulaimi A. M.Abed A. H.2016-05-302016-05-302013Al-Janabi H.D.K., Al-Dulaimi A.M.H., Abed A.H. "Model guaranteed transmission rate providing in WiMAX downlink." Проблеми телекомунікацій. – 2013. – № 1 (10). – С. 82 - 90.http://openarchive.nure.ua/handle/document/449Found that the provision of the required transmission rate of WiMAX can be achieved by solving the problem of frequency resource allocation in the downlink. As a result analyzed by the existing mechanisms of the frequency distribution of resources between subscriber stations in a downlink wireless network, operating using the technology of WiMAX. Based on the identified drawbacks of making a mathematical model the distribution of sub-channels in the network standard, IEEE 802.16, which provides a guaranteed rate subscriber stations in the downlink and submitted by a number of linear constraint equations. The novelty of the model lies in the formulation of the problem the frequency distribution of the resource allocation problem as a sub-channel with a firmly fixed number of subcarriers in each of them. The solution to the optimization problem sub-channel allocation proposed to carry out a multiple objective functions that the available frequency resources in order to allocate a minimum number of sub-channels, the distribution of the available frequency resources in order to allocate a minimum transfer speed of each the subscriber stations, the distribution of the available frequency resources to jointly minimize the number of used sub-channels and a transmission rate allocated to subscriber stations in a downlink. A comparative analysis of the solutions obtained by using different objective functions.enWiMAXsub-channels allocationmathematical modelobjective functionrequired transmission rateArticle