Achieving the degrees of freedom of 2×2×2 interference network with arbitrary antenna configurations

Dan Wu, Chenyang Yang, Zixiang Xiong

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

3 Citations (Scopus)


This paper studies the degrees of freedom (DoF) region of the 2 × 2 × 2 interference network, which is comprised of two sources, two relays and two destinations, each with arbitrary number of antennas. We prove that with linear transceivers, the cut-set outer bound can be achieved without any symbol extensions, except for one specific system setup, which has one-DoF gap to the cut-set bound. We show that to achieve the outer-bound, the transceivers include interference avoidance, cancelation, neutralization and alignment, depending on the antenna configuration.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Acoustics, Speech, and Signal Processing
EditorsAbdelhak Zoubir, Mauro Mauro
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages5
ISBN (Print)9781479928927
Publication statusPublished - 2014
Externally publishedYes
EventIEEE International Conference on Acoustics, Speech and Signal Processing 2014 - Florence, Italy
Duration: 4 May 20149 May 2014 (Conference Proceedings)


ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing 2014
Abbreviated titleICASSP 2014
Internet address

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