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Explore-before-talk: multichannel selection diversity for uplink transmissions in machine-type communication

Choi, Jinho, Park, Jihong and Pokhrel, Shivaraj 2021, Explore-before-talk: multichannel selection diversity for uplink transmissions in machine-type communication, Journal of communications and networks, vol. 23, no. 1, pp. 23-33, doi: 10.23919/JCN.2020.000029.

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Title Explore-before-talk: multichannel selection diversity for uplink transmissions in machine-type communication
Author(s) Choi, JinhoORCID iD for Choi, Jinho orcid.org/0000-0002-4895-6680
Park, JihongORCID iD for Park, Jihong orcid.org/0000-0001-7623-6552
Pokhrel, ShivarajORCID iD for Pokhrel, Shivaraj orcid.org/0000-0001-5819-765X
Journal name Journal of communications and networks
Volume number 23
Issue number 1
Start page 23
End page 33
Total pages 11
Publisher Korean Institute of Communications and Information Sciences
Place of publication Seoul, Republic of Korea
Publication date 2021-02
ISSN 1229-2370
1976-5541
Keyword(s) Computer Science
Computer Science, Information Systems
Machine-type communication
multichannel selection diversity
RANDOM-ACCESS
resource allocation
Science & Technology
Technology
Telecommunications
uplink transmission
Summary Improving the data rate of machine-type communication (MTC) is essential in supporting emerging Internet of things (IoT) applications ranging from real-time surveillance to edge machine learning. To this end, in this paper we propose a resource allocation approach for uplink transmissions within a random access procedure in MTC by exploiting multichannel selection diversity, coined explore-before-talk (EBT). Each user in EBT first sends pilot signals through multiple channels that are initially allocated by a base station (BS) for exploration, and then the BS informs a subset of initially allocated channels that are associated with high signal-to-noise ratios (SNRs) for data packet transmission by the user while releasing the rest of the channels for other users. Consequently, EBT exploits a multichannel selection diversity gain during data packet transmission, at the cost of exploration during pilot transmission. We optimize this exploration-exploitation trade-off, by deriving closed-form mean data rate and resource outage probability expressions. Numerical results corroborate that EBT achieves a higher mean data rate while satisfying the same outage constraint, compared to a conventional MTC protocol without exploration.
Language eng
DOI 10.23919/JCN.2020.000029
Indigenous content off
Field of Research 0805 Distributed Computing
0906 Electrical and Electronic Engineering
1005 Communications Technologies
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30151880

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.