University of Oulu

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

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

Saved in:
Author: Seo, Hyowoon1; Park, Jihong2; Bennis, Mehdi2;
Organizations: 1School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
2Centre for Wireless Communications, University of Oulu, Oulu 90014, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.2 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2018
Publish Date: 2019-04-17


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.

see all

Series: IEEE International Symposium on Dynamic Spectrum Access Networks
ISSN: 2334-3125
ISSN-L: 2334-3125
ISBN: 978-1-5386-5191-9
ISBN Print: 978-1-5386-5192-6
Pages: 1 - 7
DOI: 10.1109/DySPAN.2018.8610467
Host publication: 2018 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)
Conference: IEEE International Symposium on Dynamic Spectrum Access Networks
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by the Academy of Finland project CARMA, and 6Genesis Flagship (grant no. 318927), in part by the INFOTECH project NOOR, in part by the Kvantum Institute strategic project SAFARI, and in part by the Korea Electric Power Corporation (grant no. R17XA05-63).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.