K-user interference channels: Achievable secrecy rate and degrees of freedom

In this work, we consider achievable secrecy rates for symmetric K-user (K ges 3) interference channels with confidential messages. We find that nested lattice codes and layered coding are useful in providing secrecy for these channels. Achievable secrecy rates are derived for very strong interferen...

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Bibliographic Details
Published in2009 IEEE Information Theory Workshop on Networking and Information Theory pp. 336 - 340
Main Authors Xiang He, Yener, A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2009
Subjects
Decoding
Fading
Helium
Interference channels
Interference constraints
Jamming
Laboratories
Lattices
Protection
Wireless communication
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ISBN1424445353
9781424445356
DOI10.1109/ITWNIT.2009.5158598

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Summary:In this work, we consider achievable secrecy rates for symmetric K-user (K ges 3) interference channels with confidential messages. We find that nested lattice codes and layered coding are useful in providing secrecy for these channels. Achievable secrecy rates are derived for very strong interference. In addition, we derive the secure degrees of freedom for a range of channel parameters. As a by-product of our approach, we also demonstrate that nested lattice codes are useful for K-user symmetric interference channels without secrecy constraints in that they yield higher degrees of freedom than previous results.
ISBN:1424445353
9781424445356
DOI:10.1109/ITWNIT.2009.5158598