Performance analysis under imperfect channel state information and inter-cell interference in LTE-advanced system

Hunbae Kim, Sanggoo Kim, Kyungkook Cho, Dong Il Lee, Dongweon Yoon

Research output: Contribution to conferencePaper

Abstract

The standardization of Long Term Evolution- Advanced (LTE-Advanced) is based on orthogonal frequency division multiple access (OFDMA) and multiple-input multiple-output (MIMO) technologies. In OFDMA, inter-cell interference (ICI) is inevitable and causes performance degradation of user equipments (UE) in cell edge region. When the influence of ICI is severe, the effect of imperfect channel state information (CSI) is also intensified in a MIMO receiver. In the previous work, we proposed the fractional frequency reuse (FFR) algorithm to improve cell edge user throughput affected by ICI. However, the imperfect CSI has not been considered in the work. In this paper, we provide and analyze user throughput considering the effects of both ICI and imperfect CSI in a MIMO zero-forcing receiver using the FFR algorithm in LTE-Advanced system through a system level simulator (SLS).

Original languageEnglish
Pages48-51
Number of pages4
StatePublished - 2013 Jan 1
Event3rd International Conference on Digital Information Processing and Communications, ICDIPC 2013 - Dubai, United Arab Emirates
Duration: 2013 Jan 302013 Feb 1

Other

Other3rd International Conference on Digital Information Processing and Communications, ICDIPC 2013
CountryUnited Arab Emirates
CityDubai
Period13/01/3013/02/1

Keywords

  • CSI
  • FFR
  • ICI
  • MIMO
  • OFDMA

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    Kim, H., Kim, S., Cho, K., Lee, D. I., & Yoon, D. (2013). Performance analysis under imperfect channel state information and inter-cell interference in LTE-advanced system. 48-51. Paper presented at 3rd International Conference on Digital Information Processing and Communications, ICDIPC 2013, Dubai, United Arab Emirates.