A master thesis from Aalborg University
Radio security potential in WLAN
Author(s)
Term
10. term
Publication year
2007
Submitted on
2007-06-07
Pages
103 pages
Abstract
In the wireless communications, the signal is susceptible to be intercepted by eavesdroppers. As the security concerns the link reliability, the purpose of this project is to secure the data information in the physical layer. The idea is to apply a singular value decomposition (SVD) scheme in a multiple-input multiple-output (MIMO) system between the access point and the target user. The interest of our project is how the eavesdropper will catch the signal. The system has to be robust built-in and should be totally transparent and inherent for the user. This project mainly includes three aspects. • Evaluate the performance of the SVD scheme in a MIMO narrowband system. In this part we try to enhance the target user capacity by changing the power allocation schemes (Uniform, Water filling). • Investigate the security robustness of our system regarding the eavesdropper interceptions. In this section, we evaluate the performance of the eavesdropper by applying different processing such as SVD, combining techniques (Equal Gain Combing (EGC), Maximun Ration Combining (MRC)). • Propose a trade-off between the capacity of the target user and the signal deterioration to prevent the eavesdropper to capture and understand the data information.
Documents
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