A hint-based random access protocol for mMTC in 5G mobile network

Yining Xu, Yi Ren, Ching-Ju Lin, Yu-Chee Tseng

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

Abstract

With the increasing popularity of machine-type communication (MTC) devices, several new challenges are encountered by the legacy long term evolution (LTE) system. One critical issue is that a massive number of MTC devices trying to conduct random access procedures may cause significant collisions and long delays. In this work, we present a new random access mechanism by splitting the contention-based preambles in LTE into two logically disjoint parts, one for the user equipment (UE) being paged and the other for the UEs not being paged. Since the IDs of paged UEs are known by the base station, a novel hash-based random access, which we call hint, is possible. The main idea is to pre-allocate preambles to paged UEs in a contention-free manner and confines non-paged UEs to contend in a separate region. We further build a mathematical model to find the optimal ratio of pre-allocated preambles. Extensive simulations are conducted to validate our results.

Original languageEnglish
Title of host publicationProceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages388-396
Number of pages9
ISBN (Electronic)9781538655801
DOIs
StatePublished - 9 Dec 2018
Event15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018 - Chengdu, China
Duration: 9 Oct 201812 Oct 2018

Publication series

NameProceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018

Conference

Conference15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018
CountryChina
CityChengdu
Period9/10/1812/10/18

Keywords

  • Communication protocol
  • Internet of things
  • LTE
  • Machine-Type Communication (MTC)
  • Wireless Network

Fingerprint Dive into the research topics of 'A hint-based random access protocol for mMTC in 5G mobile network'. Together they form a unique fingerprint.

  • Cite this

    Xu, Y., Ren, Y., Lin, C-J., & Tseng, Y-C. (2018). A hint-based random access protocol for mMTC in 5G mobile network. In Proceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018 (pp. 388-396). [08567584] (Proceedings - 15th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MASS.2018.00062