Resource allocation for spatial-frequency domain based interference alignment scheme in MIMO-OFDM systems

Seong Ho Park, Myeong Jin Kim, Young-Chai Ko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Interference alignment (IA) needs multiple dimensions, which can be achieved by extending time, frequency or spatial domain. However, using time or frequency domain for alignment requires an exponential number of resources as the degrees of freedom increases. In addition, it is impractical to employ many number of antennas in the spatial-domain-based interference alignment system. In this paper, we consider MIMO-OFDM systems over K-user interference channels and present resource allocation criteria based on the IA scheme utilizing spatial and frequency domain simultaneously. Then, we propose a low complexity resource allocation scheme appropriate to both spatial and frequency domain IA. We show that a single additional subcarrier in the proposed resource allocation scheme is enough to improve the sum-rate performance close to the optimal performance.

Original languageEnglish
Title of host publication2014 IEEE International Conference on Communications, ICC 2014
PublisherIEEE Computer Society
Pages5753-5758
Number of pages6
ISBN (Print)9781479920037
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 1st IEEE International Conference on Communications, ICC 2014 - Sydney, NSW, Australia
Duration: 2014 Jun 102014 Jun 14

Other

Other2014 1st IEEE International Conference on Communications, ICC 2014
CountryAustralia
CitySydney, NSW
Period14/6/1014/6/14

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ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Park, S. H., Kim, M. J., & Ko, Y-C. (2014). Resource allocation for spatial-frequency domain based interference alignment scheme in MIMO-OFDM systems. In 2014 IEEE International Conference on Communications, ICC 2014 (pp. 5753-5758). [6884239] IEEE Computer Society. https://doi.org/10.1109/ICC.2014.6884239