منابع مشابه
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 ...
متن کاملFrom Quantum to Wireless: A Step Towards Physical-Layer Security
Quantum information theory is widely recognized as an arguably powerful paradigm for physically secure communications. In general, any attack that an eavesdropper, say Eve, perpetrates in order to gain access to messages or keys exchanged by the legitimate parties, say Alice and Bob, will result in disturbances to quantum states that can be detected with overwhelming probability — security is g...
متن کاملPhysical Layer Security Issues
Conventional wired networks are subject to being tapped by a variety of means, whether copper or fiber connections are used. In addition, methods of network snooping exist that make such eavesdropping minimally invasive, but no less significant. Wireless networking has additional characteristics that also decrease physical network security. As new technologies emerge, the potential for loss of ...
متن کاملWireless Physical Layer Security
Security in wireless networks has traditionally been considered to be an issue to be addressed separately from the physical radio transmission aspects of wireless systems. However, with the emergence of new networking architectures that are not amenable to traditional methods of secure communication such as data encryption, there has been an increase in interest in the potential of the physical...
متن کاملLDPC Codes for Physical Layer Security
This paper presents a coding scheme for the Gaussian wiretap channel based on low-density parity-check (LDPC) codes. The messages are transmitted over punctured bits to hide data from eavesdroppers. It is shown that this method is asymptotically effective in the sense that it yields a BER very close to 0.5 for an eavesdropper whose SNR is lower than the threshold SNRE , even if the eavesdropper...
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ژورنال
عنوان ژورنال: IEEE Communications Magazine
سال: 2013
ISSN: 0163-6804
DOI: 10.1109/mcom.2013.6576339