TY - GEN
T1 - A non-preemptive MAC protocol for multi-channel cognitive radio networks
AU - Luís, Miguel
AU - Oliveira, Rodolfo
AU - Dinis, Rui
AU - Bernardo, Luis
PY - 2015
Y1 - 2015
N2 - In this paper, we propose a novel multi-channel Medium Access Control (MAC) protocol for distributed Cognitive Radio Networks (dCRNs), which adopts a non-preemptive MaxWeight scheduling policy based on the availability of the licensed channels and the individual backlog of the Secondary Users (SUs). Under this protocol each SU competes for a data channel using the RTS-CTS mechanism, and the channel assignment is conducted by a distributed algorithm working without the need of a central entity. An analytical model for the individual SU's transmission probability, packet service time, and network aggregate goodput is proposed, which relies on a Discrete Time Markov Chain used to model the SU MAC behavior. Simulation results considering different number of SUs and data channels are used to assess the proposed model, characterizing the level of idle spectrum utilization achieved by the MAC protocol.
AB - In this paper, we propose a novel multi-channel Medium Access Control (MAC) protocol for distributed Cognitive Radio Networks (dCRNs), which adopts a non-preemptive MaxWeight scheduling policy based on the availability of the licensed channels and the individual backlog of the Secondary Users (SUs). Under this protocol each SU competes for a data channel using the RTS-CTS mechanism, and the channel assignment is conducted by a distributed algorithm working without the need of a central entity. An analytical model for the individual SU's transmission probability, packet service time, and network aggregate goodput is proposed, which relies on a Discrete Time Markov Chain used to model the SU MAC behavior. Simulation results considering different number of SUs and data channels are used to assess the proposed model, characterizing the level of idle spectrum utilization achieved by the MAC protocol.
KW - AD HOC NETWORKS
UR - http://www.scopus.com/inward/record.url?scp=84938766516&partnerID=8YFLogxK
U2 - 10.1109/WCNCW.2015.7122554
DO - 10.1109/WCNCW.2015.7122554
M3 - Conference contribution
AN - SCOPUS:84938766516
T3 - IEEE Wireless Communications and Networking Conference Workshops
SP - 200
EP - 205
BT - 2015 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2015
Y2 - 9 March 2015 through 12 March 2015
ER -