Consensus-before-talk : distributed dynamic spectrum access via distributed spectrum ledger technology

Seo, Hyowoon; Park, Jihong; Bennis, Mehdi; Choi, Wan (2019-01-14)
 
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URL:
https://doi.org/10.1109/DySPAN.2018.8610467

Seo, Hyowoon
Park, Jihong
Bennis, Mehdi
Choi, Wan
Institute of Electrical and Electronics Engineers
14.01.2019

H. Seo, J. Park, M. Bennis and W. Choi, "Consensus-Before-Talk: Distributed Dynamic Spectrum Access via Distributed Spectrum Ledger Technology," 2018 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN), Seoul, 2018, pp. 1-7. doi: 10.1109/DySPAN.2018.8610467

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doi:https://doi.org/10.1109/DySPAN.2018.8610467
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https://urn.fi/URN:NBN:fi-fe2019041712687
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Abstract

This paper proposes Consensus-Before-Talk (CBT), a spectrum etiquette architecture leveraged by distributed ledger technology (DLT). In CBT, secondary users’ spectrum access requests reach a consensus in a distributed way, thereby enabling collision-free distributed dynamic spectrum access. To achieve this consensus, the secondary users need to pay for the extra request exchanging delays. Incorporating the consensus delay, the end-to-end latency under CBT is investigated. Both the latency analysis and numerical evaluation validate that the proposed CBT achieves the lower end-to-end latency particularly under severe secondary user traffic, compared to the Listen-Before-Talk (LBT) benchmark scheme.

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