Physical-Layer Network-Coding over Block Fading Channels with Root-LDA Lattice Codes

Ping-Chung Wang*, Yu-Chih Huang, Krishna R. Narayanan, J. J. Boutros

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

We consider the problem of physical-layer network coding when the channel exhibits block fading. Specifically, we focus on the use of lattice codes in a compute-and-forward framework for realizing physical-layer network coding. We construct a novel lattice ensemble called the root-Low-Density Construction-A (root-LDA) ensemble which uses Construction A with root-low-density parity check (LDPC) codes. Using extensive simulations, we show that the proposed lattice codes exhibit full diversity when used over the block fading channels. In addition, their performance is comparable to the performance of LDA lattice codes optimized by the progressive edge growth algorithm over the additive white Gaussian noise AWGN channel. This suggests that root-LDA lattice codes provide a robust solution to the problem of implementing physical layer network coding over fading channels.

Original languageEnglish
Title of host publication2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
PublisherIEEE
Number of pages6
StatePublished - 2016
EventIEEE International Conference on Communications (ICC) - Kuala Lumpur, Malaysia
Duration: 23 May 201627 May 2016

Publication series

NameIEEE International Conference on Communications
PublisherIEEE
ISSN (Print)1550-3607

Conference

ConferenceIEEE International Conference on Communications (ICC)
CountryMalaysia
CityKuala Lumpur
Period23/05/1627/05/16

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