Spectral and energy efficiency analysis of uplink heterogeneous networks with small-cells on edge

Muhammad Zeeshan Shakir, Hina Tabassum, Khalid A. Qaraqe, Erchin Serpedin, Mohamed-Slim Alouini

Research output: Contribution to journalArticle

Abstract

This paper presents a tractable mathematical framework to analyze the spectral and energy efficiency of an operator initiated deployment of the small-cells (e.g., femtocells) where the small-cell base stations are deliberately positioned around the edge of the macrocell. The considered deployment facilitates the cell-edge mobile users in terms of their coverage, spectral, and energy efficiency and is referred to as cell-on-edge (COE) configuration. The reduction in energy consumption is achieved by considering fast power control where the mobile users transmit with adaptive power to compensate the path loss, shadowing and fading. In particular, we develop a moment generating function (MGF) based approach to derive analytical bounds on the area spectral efficiency and exact expressions for the energy efficiency of the mobile users in the considered COE configuration over generalized-K fading channels. Besides the COE configuration, the derived bounds are also shown to be useful in evaluating the performance of random small-cell deployments, e.g., uniformly distributed small-cells. Simulation results are presented to demonstrate the improvements in spectral and energy efficiency of the COE configuration with respect to macro-only networks and other unplanned deployment strategies.
Original languageEnglish
Pages (from-to)27-41
Number of pages15
JournalPhysical Communication
Volume13
Issue numberB
DOIs
Publication statusPublished - Dec 2014
Externally publishedYes

Keywords

  • Heterogeneous networks (HetNets)
  • Cell-on-edge (COE)
  • Cell-edge mobile users
  • Spectral and energy efficiency
  • Fast power control
  • Generalized fading channels and interference reduction

Cite this

Shakir, Muhammad Zeeshan ; Tabassum, Hina ; Qaraqe, Khalid A. ; Serpedin, Erchin ; Alouini, Mohamed-Slim. / Spectral and energy efficiency analysis of uplink heterogeneous networks with small-cells on edge. In: Physical Communication. 2014 ; Vol. 13, No. B. pp. 27-41.
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Spectral and energy efficiency analysis of uplink heterogeneous networks with small-cells on edge. / Shakir, Muhammad Zeeshan; Tabassum, Hina; Qaraqe, Khalid A.; Serpedin, Erchin; Alouini, Mohamed-Slim.

In: Physical Communication, Vol. 13, No. B, 12.2014, p. 27-41.

Research output: Contribution to journalArticle

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AU - Qaraqe, Khalid A.

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AU - Alouini, Mohamed-Slim

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