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

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 publicationFirst International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013
PublisherIEEE
Pages132-136
Number of pages5
ISBN (Electronic)978-1-4799-0857-8
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

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

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 First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013 (pp. 132-136). IEEE. https://doi.org/10.1109/BlackSeaCom.2013.6623396
Sambo, Yusuf A. ; Shakir, Muhammad Z. ; Ekti, Ali R. ; Qaraqe, Khalid A. ; Serpedin, Erchin ; Imran, Muhammad A. / K-tier heterogeneous small-cell networks : towards balancing the spectrum usage and power consumption with aggressive frequency reuse. First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013 . IEEE, 2013. pp. 132-136
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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.",
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Sambo, YA, Shakir, MZ, Ekti, AR, Qaraqe, KA, Serpedin, E & Imran, MA 2013, K-tier heterogeneous small-cell networks: towards balancing the spectrum usage and power consumption with aggressive frequency reuse. in First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013 . IEEE, pp. 132-136. https://doi.org/10.1109/BlackSeaCom.2013.6623396

K-tier heterogeneous small-cell networks : towards balancing the spectrum usage and power consumption with aggressive frequency reuse. / Sambo, Yusuf A.; Shakir, Muhammad Z.; Ekti, Ali R.; Qaraqe, Khalid A.; Serpedin, Erchin; Imran, Muhammad A.

First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013 . IEEE, 2013. p. 132-136.

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

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N2 - 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.

AB - 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.

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KW - aggressive frequency reuse scheme

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DO - 10.1109/BlackSeaCom.2013.6623396

M3 - Conference contribution

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BT - First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013

PB - IEEE

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Sambo YA, Shakir MZ, Ekti AR, Qaraqe KA, Serpedin E, Imran MA. K-tier heterogeneous small-cell networks: towards balancing the spectrum usage and power consumption with aggressive frequency reuse. In First International Black Sea Conference on Communications and Networking (BlackSeaCom), 2013 . IEEE. 2013. p. 132-136 https://doi.org/10.1109/BlackSeaCom.2013.6623396