Energy efficiency in fading interference channels under QoS constraints

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

1 Scopus citations

Abstract

In this paper, energy efficiency in two-user fading interference channels is studied when the transmitters are operating in the presence of quality of service (QoS) constraints. QoS constraints are imposed as limitations on the buffer violation probabilities, and effective capacity formulation is employed as the throughput metric. Three different strategies, namely time division multiplexing with power control, treating interference as noise, and simultaneous decoding, are considered. Energy efficiency of these schemes are investigated by determining the corresponding minimum energy per bit requirements and wideband slope regions. It is shown that while time division multiplexing and treating interference as noise achieve the same minimum bit energy levels, they have different wideband slope regions. For instance, it is demonstrated that treating interference as noise can achieve points outside the slope region of time division multiplexing if the interference is weak. Finally, superiority of simultaneous decoding in strong interference scenarios is shown through its reduced minimum bit energy requirements.

Original languageEnglish (US)
Title of host publication2012 International Symposium on Information Theory and Its Applications, ISITA 2012
Pages692-696
Number of pages5
StatePublished - Dec 1 2012
Event2012 International Symposium on Information Theory and Its Applications, ISITA 2012 - Honolulu, HI, United States
Duration: Oct 28 2012Oct 31 2012

Publication series

Name2012 International Symposium on Information Theory and Its Applications, ISITA 2012

Other

Other2012 International Symposium on Information Theory and Its Applications, ISITA 2012
CountryUnited States
CityHonolulu, HI
Period10/28/1210/31/12

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems

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  • Cite this

    Ozmen, M., Gursoy, M. C., & Varshney, P. K. (2012). Energy efficiency in fading interference channels under QoS constraints. In 2012 International Symposium on Information Theory and Its Applications, ISITA 2012 (pp. 692-696). [6401029] (2012 International Symposium on Information Theory and Its Applications, ISITA 2012).