TY - GEN
T1 - Maximization of sum rate in AF-cognitive radio networks using superposition approach and n-out-of-k rule
AU - Miah, Md Sipon
AU - Schukat, Michael
AU - Barrett, Enda
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/18
Y1 - 2017/7/18
N2 - The spectrum sensing strategy plays a vital role in Amplify-Forward (AF)-Cognitive Radio Networks (CRNs). However, AF-CRN cannot obtain maximal throughput, when existing sensing strategies are applied to AF-CRNs. In this paper, we present a superposition approach in AF-CRNs, in which firstly a Secondary User (SU) extends its sensing time until right before the beginning of its reporting time slot, and secondly each SU sends its measurement results containing amplified reports to the Cluster Head (CH), while the CH with soft-fusion report is forwarded to the Fusion Center (FC). With such extended sensing intervals and amplified reporting, a better sensing performance can be obtained than with the conventional rigid strategy. In addition to this, the sum rate of primary and secondary networks is also investigated for the superposition approach and the n-out-of-k rule. Numerical experiments show that the proposed strategy guarantees maximum sum rate compare to the conventional strategy under any condition.
AB - The spectrum sensing strategy plays a vital role in Amplify-Forward (AF)-Cognitive Radio Networks (CRNs). However, AF-CRN cannot obtain maximal throughput, when existing sensing strategies are applied to AF-CRNs. In this paper, we present a superposition approach in AF-CRNs, in which firstly a Secondary User (SU) extends its sensing time until right before the beginning of its reporting time slot, and secondly each SU sends its measurement results containing amplified reports to the Cluster Head (CH), while the CH with soft-fusion report is forwarded to the Fusion Center (FC). With such extended sensing intervals and amplified reporting, a better sensing performance can be obtained than with the conventional rigid strategy. In addition to this, the sum rate of primary and secondary networks is also investigated for the superposition approach and the n-out-of-k rule. Numerical experiments show that the proposed strategy guarantees maximum sum rate compare to the conventional strategy under any condition.
UR - https://www.scopus.com/pages/publications/85027877467
U2 - 10.1109/ISSC.2017.7983602
DO - 10.1109/ISSC.2017.7983602
M3 - Conference Publication
T3 - 2017 28th Irish Signals and Systems Conference, ISSC 2017
BT - 2017 28th Irish Signals and Systems Conference, ISSC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th Irish Signals and Systems Conference, ISSC 2017
Y2 - 20 June 2017 through 21 June 2017
ER -