A fractional path-loss compensation based power control technique for interference mitigation in LTE-A femtocell networks

Sawsan Ali Saad, Mahamod Ismail, Rosdiadee Nordin, Afaz Uddin Ahmed

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Introduction of Femtocells in heterogeneous network enhances the capacity, indoor coverage of the existing macrocell based network. It also allows high-speed data services for the multi-media application and software. However, in dense co-channel deployment scenarios femtocells cause severe interference to the neighbouring cells users. In this paper, a downlink-power-control scheme is presented for femtocell with no overhead signalling exchange with the macrocell. The femtocell adjusts the transmit power subject to home user equipment (HUE) measurements. The minimum level of transmit power is determined by the target Signal to Interference and Noise Ratio (SINR) of femtocell user that is set according to the required Quality of Service (QoS) of the femtocell users. The system level simulations confirm that, the proposed scheme reduces the outage probability of the nearby macrocell user equipment (MUE) up to 16.7% compared to fixed power setting, while maintaining the spectral efficiency of femtocell users. Furthermore, the transmit power can be reduced by 52.6% which leads to power effective solution of the interference scenario.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalPhysical Communication
Volume21
DOIs
Publication statusPublished - 1 Dec 2016

Fingerprint

Femtocell
local thermodynamic equilibrium
Power control
interference
multimedia
high speed
computer programs
causes
cells
Heterogeneous networks
Compensation and Redress
Outages
simulation
Quality of service

Keywords

  • Co/cross-tier interference
  • Femtocells
  • Heterogeneous network
  • Macrocells
  • Power control

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

A fractional path-loss compensation based power control technique for interference mitigation in LTE-A femtocell networks. / Saad, Sawsan Ali; Ismail, Mahamod; Nordin, Rosdiadee; Ahmed, Afaz Uddin.

In: Physical Communication, Vol. 21, 01.12.2016, p. 1-9.

Research output: Contribution to journalArticle

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