Radio Security/Privacy and complexity Trade-offs for 4G

Student thesis: Master thesis (including HD thesis)

  • Mathieu Gobeaut
  • Richard Tchissambou
In wireless communications, transmissions are susceptible to be intercepted by eavesdroppers. As security implies links reliability, the purpose of this project is to secure communications at the physical layer to prevent the home user from configuring his wireless connection security application by himself. The idea is to apply a beam-hopping pattern at an access point, which will allow to choose the direction in which to send a signal and combine it with a power control to guarantee the target user with receiving the same amount of power during a whole communication. This project mainly includes two aspects. Evaluate the performance of the beam hopping pattern. In this part, we try to deteriorate the signal received by the eavesdropper by orienting the beam towards the target user. Investigate the efficiency of a power control processing called Automatic Gain Control (AGC) and combine it with the previous technique to perturbate the eavesdropper signal even more and make it very difficult for him to decode a signal sent by the access point to the target user.
Publication date2008
Number of pages73
Publishing institutionAalborg University
ID: 14426934