Interference alignment with range expansion in a heterogeneous MIMO network

Sungyoon Cho, Hyukjin Chae, Dong Ku Kim, Janghoon Yang

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

5 Citations (Scopus)

Abstract

Managing smaller cells such as micro and picocells in conventional macro cellular networks is expected to provide better quality of data service. However, frequency reuse-1 operation of smaller cells with the macrocells can create additional "cell edge" area that can degrade the system performance significantly. This paper proposes an interference avoidance scheme based on interference alignment and region based zero-forcing in a heterogeneous cellular system consisting of two overlaying macro and picocells with multiple antennas. The proposed transmission strategy effectively suppresses the cross-tier interference at both macro and pico users who are in severe interference limited region, providing the benefits of coverage expansion of picoocells. Simulation results show that the proposed interference avoidance scheme provides a significant performance gain over the non-coordinated scheme in the two macro/picocells network.

Original languageEnglish
Title of host publication2011 International Conference on ICT Convergence, ICTC 2011
Pages64-68
Number of pages5
DOIs
Publication statusPublished - 2011 Dec 23
Event2011 International Conference on ICT Convergence, ICTC 2011 - Seoul, Korea, Republic of
Duration: 2011 Sep 282011 Sep 30

Publication series

Name2011 International Conference on ICT Convergence, ICTC 2011

Other

Other2011 International Conference on ICT Convergence, ICTC 2011
CountryKorea, Republic of
CitySeoul
Period11/9/2811/9/30

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All Science Journal Classification (ASJC) codes

  • Information Systems

Cite this

Cho, S., Chae, H., Kim, D. K., & Yang, J. (2011). Interference alignment with range expansion in a heterogeneous MIMO network. In 2011 International Conference on ICT Convergence, ICTC 2011 (pp. 64-68). [6082551] (2011 International Conference on ICT Convergence, ICTC 2011). https://doi.org/10.1109/ICTC.2011.6082551