181 citations · 190 across the 4 of their papers we have counts for
4 papers
Bilayer LDPC Convolutional Codes for Half-Duplex Relay Channels
Zhongwei Si, Ragnar Thobaben, Mikael Skoglund
In this paper we present regular bilayer LDPC convolutional codes for half-duplex relay channels. For the binary erasure relay channel, we prove that the proposed code construction…
Rate-Equivocation Optimal Spatially Coupled LDPC Codes for the BEC Wiretap Channel
Vishwambhar Rathi, Ruediger Urbanke, Mattias Andersson +1
We consider transmission over a wiretap channel where both the main channel and the wiretapper's channel are Binary Erasure Channels (BEC). We use convolutional LDPC ensembles base…
Nested Polar Codes for Wiretap and Relay Channels
Mattias Andersson, Vishwambhar Rathi, Ragnar Thobaben +2
We show that polar codes asymptotically achieve the whole capacity-equivocation region for the wiretap channel when the wiretapper's channel is degraded with respect to the main ch…
Bounds on Thresholds Related to Maximum Satisfiability of Regular Random Formulas
Vishwambhar Rathi, Erik Aurell, Lars Rasmussen +1
We consider the regular balanced model of formula generation in conjunctive normal form (CNF) introduced by Boufkhad, Dubois, Interian, and Selman. We say that a formula is -sat…