Exploiting Physical-Layer Security for Multiuser Multicarrier Computation Offloading

Physical Layer Security for Multiuser MIMO Communications

Wireless multi-user MIMO communications are used more and more often to exchange sensitive data. Because of the broadcast nature of the physical medium, unauthorized receivers located within the transmission range can observe the signals sent by the transmitter to a legitimate receiver and eavesdrop them. Therefore, security has become an extremely important issue to deal with. Multiuser MIMO c...

Exploiting the physical layer for enhanced security

While conventional cryptographic security mechanisms are essential to the overall problem of securing wireless networks, they do not directly leverage the unique properties of the wireless domain to address security threats. The wireless medium is a powerful source of domain-specific information that can complement and enhance traditional security mechanisms. In this article, we argue that new ...

Quantization and LLR Computation for Physical Layer Security

While computational security algorithms usually reside in upper protocol layers and rely on the assumption of limited processing capabilities of a potential eavesdropper, physicallayer key generation aims at providing secrecy in the more information-theoretic sense, as introduced by Shannon [?]. Thus, by sharing a previously known secret key, such as a one-time pad, two legitimate users, Alice ...

Physical Layer Loading Algorithms for Indoor Wireless Multicarrier Systems

The demand for wireless networks has been growing rapidly over the recent past due to improved reliability, higher supported data rates, seamless connectivity between users and the access point, and low deployment costs relative to wireline infrastructure. This increase in demand started with the popular IEEE 802.11b wireless local area network standard. Many recent wireless network standards a...

Computationally Efficient Adaptive Algorithms for Multicarrier Physical Layer