Understanding co-channel interference in LTE-based multi-tier cellular networks

  • Authors:
  • Xueli An;Fabio Pianese

  • Affiliations:
  • Bell Labs, Alcatel-Lucent, Antwerp, Belgium;Bell Labs, Alcatel-Lucent, Antwerp, Belgium

  • Venue:
  • Proceedings of the 9th ACM symposium on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
  • Year:
  • 2012

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Abstract

Multi-tier network configurations are considered as a promising deployment mode for next-generation radio access networks. While it is believed that smaller cells (pico cells) can help offload traffic from macro cells, they also generate interference which may lead to capacity loss in the macro cell and neighboring small cells. It is therefore important for the mobile operators to understand and model what is the net effect of deploying pico cells on top of micro or macro cells. In this work, we introduce a comprehensive analytical framework for co-channel interference analysis in Long Term Evolution (LTE) multi-tier cellular networks and present preliminary simulation results. The model we describe is capable to provide practical insights to guide the deployment of multi-tier networks, and completes the studies in the literature with finer analytical details.