K-tier heterogeneous small-cell networks: Towards balancing the spectrum usage and power consumption with aggressive frequency reuse

Yusuf A. Sambo, Muhammad Z. Shakir, Ali R. Ekti, Khalid A. Qaraqe, Erchin Serpedin, Muhammad A. Imran

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

1 Citation (Scopus)

Abstract

Heterogeneous small-cell networks (HetSNets) are considered as a standard part of the future mobile networks where multiple low-power, low-cost base stations (e.g., femtocells) complement the existing macrocell infrastructure. In this paper, we propose a heterogeneous network where multiple tiers of small-cells are deployed which in turn expand the network coverage and increase the frequency reuse distance without compromising the frequency reuse factor. The resultant network is referred to as K-tier HetSNets, where small-cells are padded between the macrocells such that each of the macrocells in the network employs aggressive frequency reuse scheme, i.e., same set of frequencies is used in each macrocell. It has been shown that the co-channel interference due to neighboring macrocells has been reduced significantly without increasing the frequency reuse factor. The large scale deployment of the small-cells may increase the downlink power consumption of the considered HetSNet. Therefore, we show that the population of small-cells in each of the K-tiers is probabilistically dependent on the traffic load due to active mobile users, such that the small-cells in the network turn on their sleep mode under low and medium traffic load during the day. Several simulation results are included to illustrate the impact of the aggressive frequency reuse scheme and traffic load dependent population of small-cells on the system interference and downlink power consumption of the small-cell base stations.

Original languageEnglish
Title of host publication2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013
Pages132-136
Number of pages5
DOIs
Publication statusPublished - 16 Dec 2013
Event2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013 - Batumi, Georgia
Duration: 3 Jul 20135 Jul 2013

Publication series

Name2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013

Other

Other2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013
CountryGeorgia
CityBatumi
Period3/7/135/7/13

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Keywords

  • Heterogeneous small-cell networks (HetSNets)
  • aggressive frequency reuse scheme
  • co-channel interference
  • daily traffic profile and downlink power consumption
  • frequency reuse distance

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Ocean Engineering

Cite this

Sambo, Y. A., Shakir, M. Z., Ekti, A. R., Qaraqe, K. A., Serpedin, E., & Imran, M. A. (2013). K-tier heterogeneous small-cell networks: Towards balancing the spectrum usage and power consumption with aggressive frequency reuse. In 2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013 (pp. 132-136). [6623396] (2013 1st International Black Sea Conference on Communications and Networking, BlackSeaCom 2013). https://doi.org/10.1109/BlackSeaCom.2013.6623396