The Throughput Bottleneck of Quantum-Secure Communication Links: Analysis and Mitigation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00377616" target="_blank" >RIV/68407700:21230/24:00377616 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/TCOMM.2024.3394746" target="_blank" >https://doi.org/10.1109/TCOMM.2024.3394746</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TCOMM.2024.3394746" target="_blank" >10.1109/TCOMM.2024.3394746</a>
Alternative languages
Result language
angličtina
Original language name
The Throughput Bottleneck of Quantum-Secure Communication Links: Analysis and Mitigation
Original language description
The use of quantum key distribution (QKD) to improve security may impact the quality of service (Qos) of high rate classical data links. The key generation process with an empty buffer can be modeled as a queuing system, and data throughput limits can be determined using queueing theory to assess the impact on the QoS. The proposed key generation model is based on an on-demand paradigm. Based on the results of this study, a discrete variable (DV)-QKD-secured link could be designed using the data rate bounds to guarantee a given QoS. Furthermore, we validate the derived bounds by comparing the theoretical derivations with simulations. We show that in a one-time-pad system, the achievable throughput approaches 0.59 times the secret key rate as the key length increases. In the case of a key scheme with key reuse, the throughput is asymptotically linear with the number of key reuses, and the slope of the curve corresponds to the secret key rate multiplied by a function of the protocol and channel characteristics. The analysis is carried out on optical fiber and free-space links.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20202 - Communication engineering and systems
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Communications
ISSN
0090-6778
e-ISSN
1558-0857
Volume of the periodical
72
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
6416-6426
UT code for WoS article
001340385300021
EID of the result in the Scopus database
2-s2.0-85192148892