A new dynamic secured IEEE 802.11e AES based system

Abstract

In computer networks, the network resources are shared among different applications based on a Quality of Service (QoS) priority scheme. Enhanced Distribution Channel Access (EDCA) is effectively based on Distributed Coordination Function (DCF) with four priorities (Background — Best Effort — Video — Voice), which decreases the congestion in the network. This paper proposes a novel technique of context aware Advanced Encryption Standard (AES) algorithm Cipher Block Chaining (CBC) as a general mode for IEEE 802.11e. This algorithm is based on the selection of some different parameters of AES according to the type of the received application, due to parameters variation an enhancement in the system security is observed. Results are obtained by merging both MATLAB and OPNET modeler to evaluate the network performance among several critical metrics.