Coordinated SINR balancing methods for multi-cell downlink systems

Haewook Park, Seok Hwan Park, Jin Sung Kim, Inkyu Lee

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

1 Citation (Scopus)

Abstract

In this paper, we consider coordinated beamforming techniques where multiple base stations jointly design a transmission strategy by sharing channel state information. Particularly, we tackle the signal-to-interference-plus- noise ratio (SINR) balancing problem to maximize the worst-user rate for multi-cell downlink systems. To solve this problem, both symmetric complex (SC) and asymmetric complex (AC) signaling methods are investigated. First, we present the SINR balancing algorithm with the SC signaling. Due to residual interference, the worst-user rate in the SC signaling is saturated at high signal-to-noise ratio (SNR). To alleviate this issue, we also propose the SINR balancing technique based on the AC signaling which combines both interference alignment and power control methods. Simulation results confirm that the AC signaling outperforms the SC signaling scheme over all SNR range.

Original languageEnglish
Title of host publication2012 IEEE International Conference on Communications, ICC 2012
Pages4400-4404
Number of pages5
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, Canada
Duration: 2012 Jun 102012 Jun 15

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Other

Other2012 IEEE International Conference on Communications, ICC 2012
CountryCanada
CityOttawa, ON
Period12/6/1012/6/15

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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  • Cite this

    Park, H., Park, S. H., Kim, J. S., & Lee, I. (2012). Coordinated SINR balancing methods for multi-cell downlink systems. In 2012 IEEE International Conference on Communications, ICC 2012 (pp. 4400-4404). [6364515] (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2012.6364515