By Zang Li, Roy Yates, Wade Trappe (auth.), Ruoheng Liu, Wade Trappe (eds.)
Wireless platforms have gotten more and more pervasive and securing those platforms has been difficult, largely because of the special houses linked to instant communications. Securing those networks has often been approached by way of taking a standard procedure regarding cryptographic protocols. Such an strategy inherently seeks to safe the instant community on the hyperlink layer and above, and accordingly fails to leverage the main specified attribute of instant communique: its actual layer.
Securing instant Communications on the actual Layer is a compilation of contributions by way of specialists in instant communications and safeguard, and provides state of the art effects that research the problem of introducing defense on the actual layer of a instant approach. all through this publication there's an underlying subject matter that the wealthy multipath surroundings that's average of instant eventualities helps the institution of latest safety providers on the actual layer, together with new mechanisms that identify cryptographic keys, that aid communique with guaranteed confidentiality, and which may authenticate transmitters in cellular environments. The booklet takes a holistic method of masking issues concerning actual layer defense recommendations, with contributions starting from the theoretical underpinnings at the back of safe communications to useful structures validations which have been played on actual instant structures. The publication additionally covers subject matters relating to making sure that cooperative instant communications on the actual layer is reliable. also, the rising sector of modulation forensics, wherein a tool is ready to establish the modulation layout being hired by way of different units is explored.
Securing instant Communications on the actual Layer will function a important connection with engineers and researchers within the fields of protection and instant communications.
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Extra resources for Securing Wireless Communications at the Physical Layer
18) (mutual information between the transmitter and the eavesdropper), allowing for non-zero minimum guaranteed secrecy capacity. Further, the choice of σv2 lies with the transmitter, and it can be increased up to the total available power P0 to ensure secrecy in communication, unlike thermal noise power which is fixed. Again, Csec,mg in Eq. 18) is a random variable, since it depends on the random channel gains Hk and Gk . Appropriate values for σu2 and σv2 are chosen based on the statistics of Hk and Gk .
In particular, the element of Hk denoted by hi,j , is the channel gains from transmit antenna i to receive antenna j. 10) 2 Obtaining Secrecy Through Intentional Uncertainty 27 Fig. d. additive white circularly complex Gaussian noise samples with variance σn2 . d. additive white circularly complex Gaussian noise samples with variance σe2 . The multiple antennas at the eavesdropper can also be used as a model for multiple eavesdroppers, each with a single antenna, colluding to decode the secret information.
If the channels to both the receiver and the eavesdropper are noiseless. This would be a reasonable model if only the higher layers of networking are of interest, and an idealized (error-free bit S. edu ∗ Portions of the material have appeared in “Guaranteeing Secrecy using Artificial Noise,” IEEE Transactions on Wireless Communications, vol. 7, no. 6, June 2008, c IEEE 2008. R. Liu, W. 1007/978-1-4419-1385-2 2, c Springer Science+Business Media LLC 2010 19 20 S. Goel and R. Negi pipe) model for the physical layer can be used.
Securing Wireless Communications at the Physical Layer by Zang Li, Roy Yates, Wade Trappe (auth.), Ruoheng Liu, Wade Trappe (eds.)