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Load-aware ACB Scheme for M2M Traffic in LTE-A Networks

  • Lijun SongEmail author
  • Wen’an Zhou
  • Yanjun Hou
  • Mengyu Gao
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 2)

Abstract

It’s a primary challenge to support massive machine-type devices to access in LTE-A networks. Surging random access attempts will result in severe congestion to the network. Access Class Barring (ACB) scheme is a critical barring scheme proposed by 3GPP to control access attempts to alleviate the overload for the LTE-A networks. Most existing ACB schemes just consider the ideal case and ignore the effects of radio channels while setting the ACB factors. In this paper, we propose a load-aware Access Class Barring (ACB) scheme to predict access load and adjust the barring factor dynamically, which take into account the effects of radio channels. We improve two load prediction methods. Based on the prediction, we propose a method to adjust the barring factor as the predicted traffic load varies. The simulations results demonstrate that our proposed load-aware scheme efficiently outperforms the traditional ACB scheme in access success performance.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Lijun Song
    • 1
    Email author
  • Wen’an Zhou
    • 1
  • Yanjun Hou
    • 1
  • Mengyu Gao
    • 1
  1. 1.School of computer scienceBeijing University of Posts and TelecommunicationsBeijingChina

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