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A Random Access Protocol Based on Idle Pilot Reallocation for Crowded Massive MIMO Systems

Published: 29 May 2020 Publication History

Abstract

As the occurrence of massive machine type communication (mMTC), the requirements for the performance of random access in crowded massive multiple-input multiple-output (MIMO) systems are increasing. To improve the access performance, a novel random access protocol called strongest-user collision resolution combined idle pilot reallocation (SUCR-IPRA) scheme is proposed. Through the idle pilot reallocation strategy, the utilization of idle pilots can be significantly improved, and its expression is derived in this letter. Numerical results show that the proposed scheme observably outperform the existing strongest-user collision resolution (SUCRe) and SUCR combined idle pilot access (SUCR-IPA) schemes in terms of increasing the efficiency and success rate during the random access process.

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cover image ACM Other conferences
ICECC '20: Proceedings of the 3rd International Conference on Electronics, Communications and Control Engineering
April 2020
73 pages
ISBN:9781450374996
DOI:10.1145/3396730
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

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Published: 29 May 2020

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Author Tags

  1. Massive MIMO
  2. pilot allocation
  3. pilot collision
  4. random access

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  • Research-article
  • Research
  • Refereed limited

Funding Sources

  • National Natural Science Foundation of China
  • National Defense Science and Technology Innovation Special Zone Project
  • Defense Industrial Technology Development Program

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ICECC 2020

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