University of Oulu

P. S. Dester, P. Cardieri, P. H. J. Nardelli and J. M. C. Brito, "Performance Analysis and Optimization of a $N$ -Class Bipolar Network," in IEEE Access, vol. 7, pp. 135118-135132, 2019. doi: 10.1109/ACCESS.2019.2940947

Performance analysis and optimization of a N-class bipolar network

Saved in:
Author: Dester, Plínio S.1; Cardieri, Paulo1; Nardelli, Pedro H. J.2,3;
Organizations: 1School of Electrical and Computer Engineering, State University of Campinas, são paulo 13083-970, Brazil
2School of Energy Systems, LUT University, 53851 Lappeenranta, Finland
3Centre for Wireless Communications, University of Oulu, 90014 Oulu, Finland
4National Institute of Telecommunications, santa rita do sapucaí 37540-000, Brazil
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
Persistent link:
Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2020-02-27


A wireless network with unsaturated traffic and N classes of users sharing a channel under random access is analyzed here. Necessary and sufficient conditions for the network stability are derived, along with simple closed formulas for the stationary packet transmission success probabilities and mean packet delays for all classes under stability conditions. We also show, through simple and elegant expressions, that the channel sharing mechanism in the investigated scenario can be seen as a process of partitioning a well-defined quantity into portions, each portion assigned to each user class, the size of which determined by system parameters and performance metrics of that user class. Using the derived expressions, optimization problems are then formulated and solved to minimize the mean packet delay and to maximize the channel throughput per unit of area. These results indicate that the proposed analysis is capable of assessing the trade-off involved in radio-resource management when different classes of users are considered.

see all

Series: IEEE access
ISSN: 2169-3536
ISSN-E: 2169-3536
ISSN-L: 2169-3536
Volume: 7
Pages: 135118 - 135132
DOI: 10.1109/ACCESS.2019.2940947
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Copyright information: © The Authors 2019. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see