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Intelligent Uplink Bandwidth Allocation Based on PMP Mode for WiMAX

Bandwidth allocation is always an important element in both fixed and wireless networks. Despite this, IEEE 802.16e-2005 does not have a bandwidth allocation algorithm or mechanism to support WiMAX (worldwide interoperability for microwave access) network presently. This includes both uplink (UL) and downlink (DL) directions. Thus, most of the research initiatives are focusing in this area. In order to satisfy the users and multi-type services, the total capacity of WiMAX system must be optimized. In this research, a new Intelligence bandwidth allocation of uplink (IBAU) mechanism for UL direction in WiMAX is proposed. The proposed mechanism has a design of the management module in subscribe station (SS), which is for intelligent management UL bandwidth. This includes UL bandwidth allocation and service flow schedule. The IBAU mechanism has a great potential to decrease the delay time, different service flow interference and to improve the throughput of WiMAX.