TY - JOUR
T1 - Effective Bandwidth for Delay Tolerant Secondary User Traffic in Multi-PU, Multi-SU Dynamic Spectrum Access Networks
AU - Safavi, S. Ebrahim
AU - Subbalakshmi, K. P.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6
Y1 - 2015/6
N2 - 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.
AB - 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.
KW - Asymptotic Tail Behavior
KW - Buffer occupancy
KW - Dynamic Spectrum Access
KW - Effective Bandwidth
KW - Multi-Primary and Multi-Secondary Users
UR - http://www.scopus.com/inward/record.url?scp=85046407301&partnerID=8YFLogxK
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U2 - 10.1109/TCCN.2015.2504451
DO - 10.1109/TCCN.2015.2504451
M3 - Article
AN - SCOPUS:85046407301
VL - 1
SP - 175
EP - 184
JO - IEEE Transactions on Cognitive Communications and Networking
JF - IEEE Transactions on Cognitive Communications and Networking
IS - 2
M1 - 7339676
ER -