Femto-macro cellular interference control with subband scheduling and interference cancelation

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

Abstract

A significant technical challenge in deploying femtocells is controlling the interference from the underlay of femtos onto the overlay of macros. This paper presents a novel interference control method where the macrocell bandwidth is partitioned into subbands, and the short-range femtocell links adaptively allocate their power across the subbands based on a load-spillage power control method. The scheme can improve rate distribution in the macro network while also providing opportunities for short-range communication as well. Moreover, the proposed scheme requires minimal interference coordination communication between the femtos and macros, which is one of the main challenges in femtocell systems. Also, simulations show certain advantages over simpler orthogonalization schemes or power control schemes without subband partitioning. Further modest gains may also be possible with interference cancelation.

Original languageEnglish (US)
Title of host publication2010 IEEE Globecom Workshops, GC'10
Pages695-700
Number of pages6
DOIs
StatePublished - 2010
Event2010 IEEE Globecom Workshops, GC'10 - Miami, FL, United States
Duration: Dec 5 2010Dec 10 2010

Publication series

Name2010 IEEE Globecom Workshops, GC'10

Other

Other2010 IEEE Globecom Workshops, GC'10
CountryUnited States
CityMiami, FL
Period12/5/1012/10/10

Keywords

  • Cellular systems
  • Femtocells
  • Fractional frequency reuse
  • Interference cancelation
  • Interference coordination
  • Wireless communications

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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