Some “goodness” properties of LDA lattices

Some “goodness” properties of LDA lattices We study some structural properties of Construction-A lattices obtained from low density parity check codes over prime fields. Such lattices are called low density Construction-A (LDA) lattices, and permit low-complexity belief propagation decoding for transmission over Gaussian channels. It has been shown that LDA lattices achieve the capacity of the power constrained additive white Gaussian noise (AWGN) channel with closest lattice-point decoding, and simulations suggested that they perform well under belief propagation decoding. We continue this line of work and prove that these lattices are good for packing and mean squared error quantization and that their duals are good for packing. With this, we can conclude that codes constructed using nested LDA lattices can achieve the capacity of the power constrained AWGN channel, the capacity of the dirty paper channel, the rates guaranteed by the computeand-forward protocol, and the best known rates for bidirectional relaying with perfect secrecy. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Problems of Information Transmission Springer Journals

Some “goodness” properties of LDA lattices

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Pleiades Publishing, Inc.
Subject
Engineering; Communications Engineering, Networks; Electrical Engineering; Information Storage and Retrieval; Systems Theory, Control
ISSN
0032-9460
eISSN
1608-3253
D.O.I.
10.1134/S003294601701001X
Publisher site
See Article on Publisher Site

Abstract

We study some structural properties of Construction-A lattices obtained from low density parity check codes over prime fields. Such lattices are called low density Construction-A (LDA) lattices, and permit low-complexity belief propagation decoding for transmission over Gaussian channels. It has been shown that LDA lattices achieve the capacity of the power constrained additive white Gaussian noise (AWGN) channel with closest lattice-point decoding, and simulations suggested that they perform well under belief propagation decoding. We continue this line of work and prove that these lattices are good for packing and mean squared error quantization and that their duals are good for packing. With this, we can conclude that codes constructed using nested LDA lattices can achieve the capacity of the power constrained AWGN channel, the capacity of the dirty paper channel, the rates guaranteed by the computeand-forward protocol, and the best known rates for bidirectional relaying with perfect secrecy.

Journal

Problems of Information TransmissionSpringer Journals

Published: Apr 23, 2017

References

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