A Downlink Power Control Heuristic Algorithm for LTE Networks. Yassin, M., Lahoud, S., Ibrahim, M., & Khawam, K. In 21st International Conference on Telecommunications (ICT 2014), Lisbon, Portugal, May, 2014.
abstract   bibtex   
The recent development of mobile equipments, the proliferation of mobile applications and the increasing need for mobile data have led to a dense deployment of mobile networks. In this context, the Long Term Evolution (LTE) standard is adopted by a large number of mobile network operators. LTE uses Orthogonal Frequency Division Multiple Access (OFDMA) technique on the downlink of the radio interface along with frequency reuse-1 model. However, Inter-Cell Interference (ICI) and system power consumption will cause limitations in terms of mean user throughput and system performance. Indeed, several recent works focus on the minimization of ICI and power consumption in multi-user OFDMA networks. In this paper, we propose a heuristic power control algorithm that aims at minimizing the total downlink power of an LTE system. We also study the impact of the power control algorithm on ICI and system performance. Simulation results show that the proposed algorithm largely reduces the downlink power consumption without degrading system performance. In addition, it increases the mean throughput for cell-edge users that are mainly affected by ICI problems.
@inproceedings{ yassin:2014fj,
  abstract = {The recent development of mobile equipments, the
		  proliferation of mobile applications and the increasing
		  need for mobile data have led to a dense deployment of
		  mobile networks. In this context, the Long Term Evolution
		  (LTE) standard is adopted by a large number of mobile
		  network operators. LTE uses Orthogonal Frequency Division
		  Multiple Access (OFDMA) technique on the downlink of the
		  radio interface along with frequency reuse-1 model.
		  However, Inter-Cell Interference (ICI) and system power
		  consumption will cause limitations in terms of mean user
		  throughput and system performance. Indeed, several recent
		  works focus on the minimization of ICI and power
		  consumption in multi-user OFDMA networks. In this paper, we
		  propose a heuristic power control algorithm that aims at
		  minimizing the total downlink power of an LTE system. We
		  also study the impact of the power control algorithm on ICI
		  and system performance. Simulation results show that the
		  proposed algorithm largely reduces the downlink power
		  consumption without degrading system performance. In
		  addition, it increases the mean throughput for cell-edge
		  users that are mainly affected by ICI problems.},
  address = {Lisbon, Portugal},
  author = {Mohamad Yassin and Samer Lahoud and Marc Ibrahim and Kinda
		  Khawam},
  booktitle = {21st International Conference on Telecommunications (ICT
		  2014)},
  days = {5},
  keywords = {Long Term Evolution; OFDMA; power control; resource block;
		  Inter-Cell Interference; CQI},
  month = {May},
  pdf = {https://dl.dropboxusercontent.com/u/45967765/Publications/ict-14.pdf},
  title = {A Downlink Power Control Heuristic Algorithm for {LTE}
		  Networks},
  year = {2014}
}

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