Scalable and self-sustained algorithms for femto-cell interference mitigation

Sameera Palipana, Yasir Zaki, Umar Toseef, Jay Chen, Carmelita Goerg

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


Cellular networks are reaching their physical limits providing capacity that is almost near the Shannon theory. However, cellular usage is still increasing exponentially with hungry applications demanding higher data rates. As a result, designers are facing significant challenge in meeting the required demands. One promising solutions, being fostered by the 3GPP, is to increase the spectral efficiency through higher frequency reuse using smaller and denser network cells such as femto, pico and nano cells. One of the main challenges behind using smaller cells is managing interference. In this paper, we propose two novel solutions that alleviate the interference of femto-cells on macro-cell user equipment (MUEs). The solutions do not rely on any additional information exchange or signaling, nor do they rely on the backhaul and it’s delay. The first proposal is Femto-cell Power Control Scheme (FPCS) that utilizes an analytical approach to adapt the femto base station’s transmit power based on Channel Quality Indicator (CQI) reports from affected MUEs. The second method is Random Physical Resource Block Selection Scheme (RPSS) that allocates the femto-cell’s resources from a random subset of Physical Resource Blocks (PRBs) so that theMUEs benefit from a reduced interference level. Our evaluations have shown that the two proposals do alleviate the femtocell interference significantly, increasing the SINR and enhancing the end performance. To the best of our knowledge, no similar work exist in literature that addresses the femto-cell’s interference without information exchange.

Original languageEnglish (US)
Title of host publicationMobile Networks and Management - 6th International Conference, MONAMI 2014, Revised Selected Papers
EditorsRamón Agüero, Andreas Timm-Giel, Rossitza Goleva, Thomas Zinner, Phuoc Tran-Gia
PublisherSpringer Verlag
Number of pages15
ISBN (Electronic)9783319162911
StatePublished - 2015
Event6th International ICST Conference on Mobile Networks and Management, MONAMI 2014 - Würzburg, Germany
Duration: Sep 22 2014Sep 24 2014

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
ISSN (Print)1867-8211


Other6th International ICST Conference on Mobile Networks and Management, MONAMI 2014


  • Femto-cells
  • HetNet
  • Interference mitigation

ASJC Scopus subject areas

  • Computer Networks and Communications


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