TY - GEN
T1 - Delay analysis of multi-user dynamic spectrum access networks
AU - Safavi, Ebrahim
AU - Subbalakshmi, K. P.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/2
Y1 - 2015/12/2
N2 - Packet delay is a key quality of service (QoS) parameter for networks. In this paper, we derive the closed-form expression for the pdf of the delay in multi-PU, multi-SU dynamic spectrum access networks. We show that the transmission delay has an exponential distribution when the activity periods of the PUs and SUs are exponentially distributed. We also derive the dominant QoS exponent which mainly characterizes the tail-end of distribution. Simulations show that the dominant QoS exponent is approximately a linear function of number of PUs for fixed number of SUs and a linear function of the inverse of the number of SUs for fixed number of PUs.
AB - Packet delay is a key quality of service (QoS) parameter for networks. In this paper, we derive the closed-form expression for the pdf of the delay in multi-PU, multi-SU dynamic spectrum access networks. We show that the transmission delay has an exponential distribution when the activity periods of the PUs and SUs are exponentially distributed. We also derive the dominant QoS exponent which mainly characterizes the tail-end of distribution. Simulations show that the dominant QoS exponent is approximately a linear function of number of PUs for fixed number of SUs and a linear function of the inverse of the number of SUs for fixed number of PUs.
KW - Cognitive Radio Networks
KW - Delay Probability Distribution
KW - Dominant Exponent
KW - Dynamic Spectrum Access Networks
KW - Multi-Primary User
KW - Multi-Secondary User Network
KW - Stochastic Fluid Flow
UR - http://www.scopus.com/inward/record.url?scp=84960348553&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960348553&partnerID=8YFLogxK
U2 - 10.1109/DySPAN.2015.7343927
DO - 10.1109/DySPAN.2015.7343927
M3 - Conference contribution
AN - SCOPUS:84960348553
T3 - 2015 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
SP - 319
EP - 325
BT - 2015 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
T2 - IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2015
Y2 - 29 September 2015 through 2 October 2015
ER -