Secrecy gain of Gaussian wiretap codes from 2- and 3-modular lattices
Date of Issue2012
IEEE International Symposium on Information Theory (2012 : Cambridge, US)
School of Physical and Mathematical Sciences
Lattice coding over a Gaussian wiretap channel is considered with respect to a lattice invariant called the secrecy gain, which was introduced in  to characterize the confusion that a chosen lattice can cause at the eavesdropper: the higher the secrecy gain of the lattice, the more confusion. In this paper, secrecy gains of several 2- and 3-modular lattices are computed. Most are shown to have a secrecy gain larger than the best unimodular lattices can achieve.
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