QoS Provision in a Dynamic Channel Allocation Based on Admission Control Decisions
| Autor: | Ernesto Mordecki, Laura Aspirot, Claudina Rattaro, Pablo Belzarena |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Mathematical optimization
Channel allocation schemes Computer Networks and Communications Stochastic modelling Computer science Quality of service 020206 networking & telecommunications 02 engineering and technology Admission control 01 natural sciences Spectrum management 010104 statistics & probability Grade of service Cognitive radio Hardware and Architecture 0202 electrical engineering electronic engineering information engineering Media Technology Computer Science (miscellaneous) Limit (mathematics) 0101 mathematics Safety Risk Reliability and Quality Software Information Systems |
| Zdroj: | ACM Transactions on Modeling and Performance Evaluation of Computing Systems. 5:1-29 |
| ISSN: | 2376-3647 2376-3639 |
| DOI: | 10.1145/3372786 |
| Popis: | Cognitive Radio Networks have emerged in the last decades as a solution of two problems: spectrum underutilization and spectrum scarcity. In this work, we propose a dynamic spectrum sharing mechanism, where primary users have strict priority over secondary ones in order to improve the mean spectrum utilization with the objective of providing to secondary users a satisfactory grade of service with a small interruption probability. We study a stochastic model for Cognitive Radio Networks with fluid limits techniques. Our main findings consist in a Gaussian limit theorem in the sub-critical case, and a non-Gaussian limit theorem, under a different scaling scheme, in the critical case. These results provide us practical QoS criteria for sharing policies. We support our analysis with representative simulated examples in both scenarios. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|