Electrical and Computer Engineering Faculty Publications and Presentations
Document Type
Article
Publication Date
2020
Abstract
In dynamic spectrum access (DSA) a primary user shares the spectrum with one or more secondary users, with or without the primary user knowing the existence of the secondary users and offering assistance to the secondary users. When the primary user is inactive in the channel, the secondary users use the spectrum for data communication. When the primary user becomes active, the secondary users back off to return the spectrum back to the primary user. It is therefore that an arrival of the primary user traffic interrupts the ongoing communication among the secondary users. The arrivals of the primary user traffic are, in general, random, and thus secondary users cannot predict the arrivals accurately. However, when the primary user engages in non-interactive communications, it has a degree of flexibility in distributing its transmissions of data in the time domain. The paper studies the impact of the arrival distribution of primary user traffic on secondary users in terms of the secondary user network performance. Based on a state conservation scheme in DSA, the paper studies how the change of the arrival distribution of primary user traffic may affect the average network throughput, packet delay, and network power consumption of the secondary user network.
Recommended Citation
Peng, Jun. "Impact of the Arrival Distribution of Primary User Traffic in Dynamic Spectrum Access." Procedia Computer Science 170 (2020): 325-332. https://doi.org/10.1016/j.procs.2020.03.138
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Publication Title
Procedia Computer Science
DOI
10.1016/j.procs.2020.03.138
Comments
© 2020 The Authors. Published by Elsevier B.V. http://creativecommons.org/licenses/by-nc-nd/4.0/