On the statistics of sub-carrier collisions for cell-edge users and air interface capacity in OFDMA systems

Sabit Ekin, Serhan Yarkan, Khalid A. Qaraqe, Erchin Serpedin

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

2 Citations (Scopus)

Abstract

In next generation wireless networks (NGWNs), interference is one of the most important considerations in terms of system design, deployment, and performance. Given the ability to use the spectrum in finer granularity such as in orthogonal frequency division multiple access (OFDMA) systems, scheduling seems to be one of the most important functionalities of NGWNs. Therefore, in this study, sub-carrier collisions for especially cell-edge users are investigated along with their impact on air interface capacity for OFDMA-based systems. It is shown that sub-carrier collisions follow hypergeometric distribution with different statistical characteristics. In addition, the air interface capacity of OFDMA systems with the availability of interference is studied as well. Numerical results are presented to verify the theoretical analysis and investigate the impacts of different parameters on both sub-carrier collisions and the air interface capacity.

Original languageEnglish
Title of host publicationISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings
Pages153-156
Number of pages4
DOIs
Publication statusPublished - 15 Sep 2011
EventInternational Symposium on Signals, Circuits and Systems, ISSCS 2011 - Iasi, Romania
Duration: 30 Jun 20111 Jul 2011

Publication series

NameISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings

Conference

ConferenceInternational Symposium on Signals, Circuits and Systems, ISSCS 2011
CountryRomania
CityIasi
Period30/6/111/7/11

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Control and Systems Engineering

Cite this

Ekin, S., Yarkan, S., Qaraqe, K. A., & Serpedin, E. (2011). On the statistics of sub-carrier collisions for cell-edge users and air interface capacity in OFDMA systems. In ISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings (pp. 153-156). [5978682] (ISSCS 2011 - International Symposium on Signals, Circuits and Systems, Proceedings). https://doi.org/10.1109/ISSCS.2011.5978682