Effective Bandwidth for Delay Tolerant Secondary User Traffic in Multi-PU, Multi-SU Dynamic Spectrum Access Networks

S. Ebrahim Safavi, K. P. Subbalakshmi

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

In this paper, we study two important quality of service (QoS) parameters of dynamic spectrum access (DSA) networks with multiple primary and secondary users. We assume that the secondary users (SUs) are delay tolerant and model the primary user (PU) and SU activity as Markov chains with ON and OFF states. We derive a closed form expression for the probability distribution of buffer occupancy for secondary networks under steady state conditions and formulate an expression for the effective bandwidth under buffer overflow constraints. Extensive simulations are used to validate our analysis.

Original languageEnglish
Article number7339676
Pages (from-to)175-184
Number of pages10
JournalIEEE Transactions on Cognitive Communications and Networking
Volume1
Issue number2
DOIs
StatePublished - Jun 2015

Keywords

  • Asymptotic Tail Behavior
  • Buffer occupancy
  • Dynamic Spectrum Access
  • Effective Bandwidth
  • Multi-Primary and Multi-Secondary Users

Fingerprint

Dive into the research topics of 'Effective Bandwidth for Delay Tolerant Secondary User Traffic in Multi-PU, Multi-SU Dynamic Spectrum Access Networks'. Together they form a unique fingerprint.

Cite this