TY - GEN
T1 - Context aware medium access control for buffer-aided multichannel cognitive networks
AU - Darabi, Mostafa
AU - Maham, Behrouz
AU - Saad, Walid
AU - Mehbodniya, Abolfazl
AU - Adachi, Fumiyuki
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015
Y1 - 2015
N2 - In this paper, a novel context aware medium access control (MAC) scheme is proposed for multichannel buffer-aided cognitive networks. The proposed scheme allows management of the delay of the primary network (PN) and secondary network (SN) more efficiently by exploiting the packets' context. In the proposed multiple access policy, two different context aware approaches for packet prioritization are presented. In the first method, more delay sensitive packets in the PN and SN are given a higher priority compared to delay tolerant packets. In other words, the best channel with the minimum service time is assigned to the urgent packets, and hence, such urgent packets are transmitted with a lower delay. On the other hand, in the second proposed prioritization method, shorter packets in the PN and SN are given a higher priority compared to longer packets and are transmitted over channels with lower service time. Thus, based on the slow truck effect, the primary and secondary throughput is maximized. The average waiting time of the packets and the primary and secondary throughput are derived for the first and second proposed schemes, respectively. Simulation results show that the proposed schemes improve the primary and secondary average waiting time of packets and average throughput compared to other existing MAC policies in cognitive networks.
AB - In this paper, a novel context aware medium access control (MAC) scheme is proposed for multichannel buffer-aided cognitive networks. The proposed scheme allows management of the delay of the primary network (PN) and secondary network (SN) more efficiently by exploiting the packets' context. In the proposed multiple access policy, two different context aware approaches for packet prioritization are presented. In the first method, more delay sensitive packets in the PN and SN are given a higher priority compared to delay tolerant packets. In other words, the best channel with the minimum service time is assigned to the urgent packets, and hence, such urgent packets are transmitted with a lower delay. On the other hand, in the second proposed prioritization method, shorter packets in the PN and SN are given a higher priority compared to longer packets and are transmitted over channels with lower service time. Thus, based on the slow truck effect, the primary and secondary throughput is maximized. The average waiting time of the packets and the primary and secondary throughput are derived for the first and second proposed schemes, respectively. Simulation results show that the proposed schemes improve the primary and secondary average waiting time of packets and average throughput compared to other existing MAC policies in cognitive networks.
KW - Average waiting time of packet
KW - Context aware cognitive networks
KW - Little law
KW - Priority-based MAC scheme
UR - http://www.scopus.com/inward/record.url?scp=84971236504&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971236504&partnerID=8YFLogxK
U2 - 10.1109/GLOCOMW.2015.7413966
DO - 10.1109/GLOCOMW.2015.7413966
M3 - Conference contribution
AN - SCOPUS:84971236504
T3 - 2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings
BT - 2015 IEEE Globecom Workshops, GC Wkshps 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Globecom Workshops, GC Wkshps 2015
Y2 - 6 December 2015 through 10 December 2015
ER -