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Interfering Relay Channels
KTH, School of Electrical Engineering (EES).
KTH, School of Electrical Engineering (EES).ORCID iD: 0000-0002-7926-5081
2017 (English)In: Entropy, ISSN 1099-4300, E-ISSN 1099-4300, Vol. 19, no 9, article id 441Article in journal (Refereed) Published
Abstract [en]

This paper introduces and studies a model in which two relay channels interfere with each other. Motivated by practical scenarios in heterogeneous wireless access networks, each relay is assumed to be connected to its intended receiver through a digital link with finite capacity. Inner and outer bounds for achievable rates are derived and shown to be tight for new discrete memoryless classes, which generalize and unify several known cases involving interference and relay channels. Capacity region and sum capacity for multiple Gaussian scenarios are also characterized to within a constant gap. The results show the optimality or near-optimality of the quantize-bin-and-forward coding scheme for practically relevant relay-interference networks, which brings important engineering insight into the design of wireless communications systems.

Place, publisher, year, edition, pages
MDPI AG , 2017. Vol. 19, no 9, article id 441
Keywords [en]
interference channel, relay channel, interference channel with two relays, interference relay channel, deterministic relay channel, quantize-forward, quantize-bin-and-forward, hash-forward, interference management
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-215829DOI: 10.3390/e19090441ISI: 000411527100013Scopus ID: 2-s2.0-85029153177OAI: oai:DiVA.org:kth-215829DiVA, id: diva2:1149865
Note

QC 20171017

Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-11-29Bibliographically approved

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Skoglund, Mikael

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