Uplink interference coordination for two-tier MIMO networks

Myeong Jin Kim, Young Chai Ko, Hyun Ho Lee

Research output: Contribution to conferencePaper

Abstract

In this paper, we consider interference alignment in the two-tier network consisting of a macrocell overlaid with femtocells to enhance the coverage and the capacity of cellular network. We propose an uplink interference mitigation algorithm that simultaneously allows the interference caused by macrocell users at each femtocell base station to align into a reduced dimensional subspace while maximizing the signal-to-interference-plus-noise ratio values at the macrocell base station. We also provide the feasibility condition of our proposed algorithm and discuss the achievable degrees of freedoms. Simulation results show that the proposed algorithm considerably improves the performance of femtocell base station by maximizing the signal-to-interference-plus-noise ratio value corresponding to each macrocell user at MBS.

Original languageEnglish
DOIs
Publication statusPublished - 2013
Event9th International Conference on Information, Communications and Signal Processing, ICICS 2013 - Tainan, Taiwan, Province of China
Duration: 2013 Dec 102013 Dec 13

Other

Other9th International Conference on Information, Communications and Signal Processing, ICICS 2013
CountryTaiwan, Province of China
CityTainan
Period13/12/1013/12/13

Keywords

  • Cinterference alignment
  • Femtocell
  • SINR
  • Two-tier network
  • Uplink
  • macrocell

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Signal Processing

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  • Cite this

    Kim, M. J., Ko, Y. C., & Lee, H. H. (2013). Uplink interference coordination for two-tier MIMO networks. Paper presented at 9th International Conference on Information, Communications and Signal Processing, ICICS 2013, Tainan, Taiwan, Province of China. https://doi.org/10.1109/ICICS.2013.6782869