Security is always important in data networks, but it is particularly critical in wireless networks such as WiMAX. Authentication is the first element in wireless security that, if not well safeguarded, all following security measures will be vulnerable. Denial of Service is one of the attacks that could target a WiMAX network to make its operation inefficient. This paper is an investigation into a) the weakness and threats on WiMAX security algorithms and b) the best method that could prevent

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... oS attacks prior to the authentication algorithm. The paper is presenting the architecture of WiMAX and identifying the main layers and sub layers that these security algorithms are performing their functions from within. The paper incorporates the new method with the authentication algorithm to improve the efficiency of the security of WiMAX.