Scientific Conferences of Ukraine, ICATT’15 - X International Conference on Antenna Theory and Techniques

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Model progress of subchannel distribution in WiMAX antenna system
A. V. Lemeshko, H. D. Al-Janabi, A. M. K. Al-Dulaimi

Last modified: 2015-09-13


Based on the laws of the known mechanisms of the frequency resources scheduling in the download channel, solution of the problem raised in this paper assures QoS by available resources which directly influent on quality of design of the equipment. The WiMAX resource allocation algorithms determine which users to schedule, how to allocate subcarriers to them, and how to determine the appropriate power levels for each user on each subcarrier. We present a brief survey of recent scheduling research. The goals of scheduling are to achieve the optimal usage of resources, to assure the QoS. The mathematical model introduced by a number of linear and nonlinear conditions-limitations is analyzed in this research, Therefore, a model is proposed that consists in the statement of the sub-channels scheduling problem. This model gives solutions of problems of rescheduling of the accessible capacity of the download channel of the WiMAX technology for the information transmission in the direction of users stations, taking into account their territorial remoteness.


WiMAX; IEEE 802.16; wireless network; allocation of sub-channels; self-organizing; mathematical model; scaling