Cell-edge inversion by interference cancellation for downlink cellular systems

Liang Zhou, Kalle Ruttik, Olav Tirkkonen, Randall Berry

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

Abstract

We consider a novel method to improve the down-link data rate of cell-edge users in a cellular system, which is particularly well-suited for Heterogeneous Networks (HetNets). The receivers are assumed to be able to cancel interference by simultaneously processing at most two codewords. Receivers may be served by either the closest cell or a neighboring cell; in the latter case, the receiver cancels the interference from its own cell transmission, and receives the other-cell transmission without this interference. A distributed network utility optimization problem is formulated to exploit this possibility. In a HetNet simulation, where proportional fair network utility is maximized, we observe significant gains for cell-edge users, accompanied by a moderate gain for the network capacity.

Original languageEnglish (US)
Title of host publication2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages127-131
Number of pages5
ISBN (Electronic)9781479958320
DOIs
StatePublished - Jan 27 2014
Event2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014 - Macau, China
Duration: Nov 19 2014Nov 21 2014

Publication series

Name2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014

Other

Other2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
CountryChina
CityMacau
Period11/19/1411/21/14

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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