TY - GEN
T1 - Call admission control strategy for cognitive radio networks with VoIP-traffic
AU - Castellanos-Lopez, S. Lirio
AU - Hernandez-Valdez, Genaro
AU - Rivero-Angeles, Mario E.
AU - Cruz-Perez, Felipe A.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - In this paper, a novel call admission control (CAC) strategy for a buffered cognitive radio network (CRN) with voice over Internet Protocol (VoIP) traffic is proposed. The main idea of the proposed CAC strategy relies on reducing the weight of the current number of secondary VoIP sessions in the admission/rejection decision criterion, which can potentially allow more efficient spectrum usage. To show this, the maximum VoIP Erlang capacity achieved by the proposed CAC strategy is calculated. Compared to the conventional (occupancy-based) CAC strategy, our proposed »differentiated resource occupancy-aware» CAC scheme increases Erlang capacity without an important increase in the system complexity cost. This indicates that in a CRN with VoIP traffic, system capacity not only depends on the total number of busy channels but also on the proportion of busy channels that are used by primary users.
AB - In this paper, a novel call admission control (CAC) strategy for a buffered cognitive radio network (CRN) with voice over Internet Protocol (VoIP) traffic is proposed. The main idea of the proposed CAC strategy relies on reducing the weight of the current number of secondary VoIP sessions in the admission/rejection decision criterion, which can potentially allow more efficient spectrum usage. To show this, the maximum VoIP Erlang capacity achieved by the proposed CAC strategy is calculated. Compared to the conventional (occupancy-based) CAC strategy, our proposed »differentiated resource occupancy-aware» CAC scheme increases Erlang capacity without an important increase in the system complexity cost. This indicates that in a CRN with VoIP traffic, system capacity not only depends on the total number of busy channels but also on the proportion of busy channels that are used by primary users.
KW - Call admission control
KW - Cognitive radio networks
KW - Erlang capacity
KW - Joint connection level and packet level teletraffic analysis
KW - QoS provisioning
KW - VoIP traffic
UR - http://www.scopus.com/inward/record.url?scp=84940399310&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2015.7145724
DO - 10.1109/VTCSpring.2015.7145724
M3 - Contribución a la conferencia
AN - SCOPUS:84940399310
T3 - IEEE Vehicular Technology Conference
BT - 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 81st IEEE Vehicular Technology Conference, VTC Spring 2015
Y2 - 11 May 2015 through 14 May 2015
ER -