TY - JOUR
T1 - Performance Analysis of Delay-Constrained Traffic in a Cognitive Radio Network with RF Energy Harvesting
AU - Bae, Yun Han
AU - Baek, Jung Woo
N1 - Publisher Copyright:
© 1997-2012 IEEE.
PY - 2019/12
Y1 - 2019/12
N2 - We consider a cognitive radio network where a secondary user (SU) tries to opportunistically access the channel time unused by the primary users (PUs) to transmit real-time status update packets with delivery deadline. For the radio frequency (RF)-powered SU, the channel occupancy times of the PUs are opportunities to harvest energy, whereas the idle channel times are opportunities to transmit data. Thus, there is a balance characterizing the SU performance in terms of channel occupancy probability of the PUs. We investigate the timely-delivery probability of data packets for the RF-powered SU. Specifically, we reveal the impact of the PU's channel occupancy probability on the timely-delivery probability and packet sojourn time.
AB - We consider a cognitive radio network where a secondary user (SU) tries to opportunistically access the channel time unused by the primary users (PUs) to transmit real-time status update packets with delivery deadline. For the radio frequency (RF)-powered SU, the channel occupancy times of the PUs are opportunities to harvest energy, whereas the idle channel times are opportunities to transmit data. Thus, there is a balance characterizing the SU performance in terms of channel occupancy probability of the PUs. We investigate the timely-delivery probability of data packets for the RF-powered SU. Specifically, we reveal the impact of the PU's channel occupancy probability on the timely-delivery probability and packet sojourn time.
KW - censored Markov chain
KW - Cognitive radio network
KW - RF energy harvesting
KW - timely-delivery probability
UR - http://www.scopus.com/inward/record.url?scp=85076904568&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2019.2947919
DO - 10.1109/LCOMM.2019.2947919
M3 - Article
AN - SCOPUS:85076904568
SN - 1089-7798
VL - 23
SP - 2177
EP - 2181
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 12
M1 - 8873616
ER -