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.

Seo Hyowoon, Park Jihong, Bennis Mehdi, Choi Wan

Publication type:
A4 Article in conference proceedings

Place of publication:
2018 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN)

distributed consensus, distributed ledger technology (DLT), dynamic spectrum access, spectrum etiquette

14 January 2019

Full citation:
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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