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12 papers · 2 filters
Lattice Code Design for the Rayleigh Fading Wiretap Channel
Jean-Claude Belfiore, Frederique Oggier
It has been shown recently that coding for the Gaussian Wiretap Channel can be done with nested lattices. A fine lattice intended to the legitimate user must be designed as a usual…
Construction of New Delay-Tolerant Space-Time Codes
Mireille Sarkiss, Ghaya Rekaya-Ben Othman, Mohamed Oussama Damen +1
Perfect Space-Time Codes (STC) are optimal codes in their original construction for Multiple Input Multiple Output (MIMO) systems. Based on Cyclic Division Algebras (CDA), they are…
On Bounded Weight Codes
Christine Bachoc, Venkat Chandar, Gerard Cohen +2
The maximum size of a binary code is studied as a function of its length N, minimum distance D, and minimum codeword weight W. This function B(N,D,W) is first characterized in term…
Codes over Matrix Rings for Space-Time Coded Modulations
Frederique Oggier, Patrick Sole, Jean-Claude Belfiore
It is known that, for transmission over quasi-static MIMO fading channels with n transmit antennas, diversity can be obtained by using an inner fully diverse space-time block code…
Unimodular Lattices for the Gaussian Wiretap Channel
Jean-Claude Belfiore, Patrick Sole
In a recent paper, the authors introduced a lattice invariant called "Secrecy Gain" which measures the confusion experienced by a passive eavesdropper on the Gaussian Wiretap Chann…
Asynchronous Capacity per Unit Cost
Venkat Chandar, Aslan Tchamkerten, David Tse
The capacity per unit cost, or equivalently minimum cost to transmit one bit, is a well-studied quantity. It has been studied under the assumption of full synchrony between the tra…