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      • Department of Electrical and Electronics Engineering
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      Energy efficiency analysis of a feedback-aided IRSA scheme

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      Author(s)
      Haghighat, Javad
      Duman, Tolga Mete
      Date
      2022-08-03
      Source Title
      IEEE International Symposium on Information Theory
      Publisher
      Institute of Electrical and Electronics Engineers
      Pages
      2886 - 2891
      Language
      English
      Type
      Conference Paper
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      Abstract
      Irregular Repetition Slotted ALOHA (IRSA) achieves load thresholds very close to 1 at the expense of reduced energy efficiency compared to its competitor, Coded Slotted ALOHA (CSA). The efficiency is related to the expected number of transmitted replicas, and is upper-bounded by 0.5 in the case of IRSA. In this paper, we present a feedback-aided IRSA scheme, analyze its efficiency, and show that utilizing a very limited feedback will offer considerable improvements. Remarkably, the feedback-aided scheme enables IRSA to achieve efficiencies greater than 0.5, and in some cases, perform very close to the more complex CSA schemes.
      Permalink
      http://hdl.handle.net/11693/111888
      Published Version (Please cite this version)
      https://doi.org/10.1109/ISIT50566.2022.9834643
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