Interference alignment in heterogeneous networks with macro-to-picocell offloaded users

Micael Bernhardt, Fernando Gregorio, Juan Cousseau, Taneli Riihonen, Risto Wichman

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

2 Citations (Scopus)


This work proposes a symbol-spreading-based interference alignment technique to reduce the interference suffered by a user that has been offloaded from a macrocell to a picocell in a heterogeneous network scenario. The proposed precoding and decoding technique uses the time dimension on the OFDM symbol basis to improve the effective signal-to-interference-and-noise ratio (SINR) at the affected user, without requiring coordination between the macro and pico base stations. Our simulation results demonstrate improvements w.r.t. the performance of current interference coordination techniques used in the latest releases of LTE-Advanced, with the added feature of avoiding compromising the resources of the interfering macrocell.

Original languageEnglish
Title of host publicationProceedings of the 13th International Symposium on Wireless Communication Systems, ISWCS 2016
PublisherVDE Verlag GmbH
Number of pages5
ISBN (Electronic)9781509020614
Publication statusPublished - 19 Oct 2016
MoE publication typeA4 Conference publication
EventInternational Symposium on Wireless Communication Systems - Poznan, Poland
Duration: 20 Sept 201623 Sept 2016
Conference number: 13

Publication series

ISSN (Electronic)2154-0225


ConferenceInternational Symposium on Wireless Communication Systems
Abbreviated titleISWCS 2016


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