Description
Date depot: 5 décembre 2019
Titre: Secured Digital Beamforming in Massive MIMO Wireless Communication Systems
Directeur de thèse:
Hassan ABOUSHADY (LIP6)
Directeur de thèse:
Haralampos STRATIGOPOULOS (LIP6)
Domaine scientifique: Sciences et technologies de l'information et de la communication
Thématique CNRS : Non defini
Resumé:
In communication systems, beamforming techniques consist of creating spatial multiplexing by sending multiple beams at the same time to different users that can access the system simultaneously. Increasing the amount of radiating elements increases the directivity of the signals, which allows transmitting information to users with less interference between them. It also makes possible to use multiple paths to reach a user at the same time, improving energy efficiency. To create this type of beams multiple antennas are needed with a radiant element for each type of orthogonal polarization. This matrix of multiple antennas is called massive multiple input and multiple output MIMO). The massive MIMO is the new technology of physical layer for 5G, instead of transmitting the signals blindly. Through Digital Signal Processing (DSP) it is feasible to enable beamforming techniques in massive MIMO Radio-Frequency (RF) systems and, in this way, send beams of signals directed towards user locations so as to improve channel capacity and energy efficiency by several orders of magnitude. In this dissertation we will propose an innovative architecture for a power-efficient Massive MIMO RF transceiver with digital beamforming.
This dissertation work will also cover hardware security aspects. In particular, we envision developing: (a) a Hardware Trojan detection and prevention solution for the Integrated Circuit (IC) that will be designed; (b) an obfuscated version of the proposed IC in order to provide resilience against piracy. The proposed IC will be used in a sensitive sector, i.e. telecommunications, thus dealing with the problem of Hardware Trojans is important in the case of an untrusted third-party System-on-Chip (SoC) integrator or un untrusted foundry who unavoidably get the blueprint of the design and can make malicious modifications. Moreover, we would like to protect the intellectual property of our IC, thus obfuscating will prevent adversaries in understanding it and producing similar designs or an identical cloned design.
Doctorant.e: Diaz Rizo Alan Rodrigo