Chinese Journal on Internet of Things ›› 2022, Vol. 6 ›› Issue (2): 95-105.doi: 10.11959/j.issn.2096-3750.2022.00267

• Theory and Technology • Previous Articles     Next Articles

Performance optimization for mMTC in 5G network with multiple random access schemes

Wen ZHAN1, Yiwen LIANG1, Xinghua SUN1, Xuesong TAN2   

  1. 1 School of Electronics and Communication Engineering, Sun Yat-sen University (Shenzhen), Shenzhen 518107, China
    2 National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China
  • Revised:2022-04-05 Online:2022-06-30 Published:2022-06-01
  • Supported by:
    The National Natural Science Foundation of China(62001524);The Key-Area Research and Development Program of Guangdong Province(2020B0101120003);The Guangdong Basic and Applied Basic Research Foundation(2019A1515011906);The Shenzhen Sustainable Support Program for Universities(2021A04);The Shenzhen Science and Technology Program(RCBS20210706092408010)

Abstract:

To optimize the support for massive machine type communication (mMTC) services with different traffic characteristics, packet-based random access (PBRA) scheme coexists with the connection-based random access (CBRA) scheme in 5G networks.Yet, given the traffic characteristic of mMTC, which random access scheme should be chosen is still an open issue.To address this issue, the network throughput and signaling overhead analysis of mMTC with PBRA and CBRA were presented, and the problem of throughput maximization while maintaining the signaling-to-throughput ratio below a certain level was solved.Based on this, the optimal access scheme selection strategy and the corresponding optimal network parameter configuration were obtained and verified via simulations.

Key words: mMTC, packet-based random access, connection-based random access, random access scheme selection

CLC Number: 

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