Combining interference alignment and Alamouti codes for the 3-user MIMO interference channel
2013 (English)In: 2013 IEEE Wireless Communications and Networking Conference (WCNC), New York: IEEE , 2013, 3563-3567 p.Conference paper (Refereed)
The interference channel (IC) is the basic underlying channel model for many practical multi-terminal communication scenarios. Here, we consider a modified three-user IC with dual-antenna transmitters and receivers where we allow one receiver to have a finite-rate unidirectional link to another receiver. This kind of receiver-to-receiver link may exist in cellular networks with base-station backhaul. For this scenario we propose a scheme that combines the interference-cancellation capability of Alamouti codes with the subspace-overlapping property of interference alignment to achieve a sum-rate of three symbols/channel use. The scheme does also simultaneously provide a diversity gain of two for every symbol which significantly improves the bit-error rate performance compared to zero-forcing techniques.
Place, publisher, year, edition, pages
New York: IEEE , 2013. 3563-3567 p.
, IEEE Wireless Communications and Networking Conference, WCNC, ISSN 1525-3511
Alamouti codes, Cellular network, Interference alignment, Interference channels, Mimo interference channels, Multi terminals, Unidirectional links, Zero-forcing techniques
IdentifiersURN: urn:nbn:se:kth:diva-133855DOI: 10.1109/WCNC.2013.6555138ISI: 000326048103112ScopusID: 2-s2.0-8488159346ISBN: 978-146735939-9OAI: oai:DiVA.org:kth-133855DiVA: diva2:663540
2013 IEEE Wireless Communications and Networking Conference, WCNC 2013; Shanghai; China; 7 April 2013 through 10 April 2013
QC 201311122013-11-122013-11-112013-12-10Bibliographically approved