TY - GEN
T1 - Joint subcarrier and power allocation for reciprocally-benefited spectrum sharing in cognitive radio networks
AU - Wang, Dawei
AU - Ren, Pinyi
AU - Wang, Yichen
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2016/4/3
Y1 - 2016/4/3
N2 - Aiming at reducing the outage probability of primary users (PU) and obtaining spectrum resources for secondary users (SU), in this paper, we proposed a joint subcarrier and power allocation scheme (JSPA) for reciprocally-benefited spectrum sharing with SUs cooperating with PUs. In JSPA scheme, SUs adopt the decode-and-forward (DF) relaying protocol to help PUs in a two-stage way. Meanwhile, a fraction of unallocated licensed spectrum is allocated for the secondary transmission in every stage. However, if the two-stage cooperation still cannot satisfy PUs' outage quality-of-service (QoS) requirement, SUs then switch to the access mode to entirely capture the licensed spectrum. Our proposal is to maximize the average transmission rate of SUs through joint allocation of subcarriers and power. The closed-form expressions about the outage probability and average transmission rate of both PUs and SUs are derived. Simulation results show that compared with the conventional cognitive cooperation schemes, the average transmission rate of SUs improves.
AB - Aiming at reducing the outage probability of primary users (PU) and obtaining spectrum resources for secondary users (SU), in this paper, we proposed a joint subcarrier and power allocation scheme (JSPA) for reciprocally-benefited spectrum sharing with SUs cooperating with PUs. In JSPA scheme, SUs adopt the decode-and-forward (DF) relaying protocol to help PUs in a two-stage way. Meanwhile, a fraction of unallocated licensed spectrum is allocated for the secondary transmission in every stage. However, if the two-stage cooperation still cannot satisfy PUs' outage quality-of-service (QoS) requirement, SUs then switch to the access mode to entirely capture the licensed spectrum. Our proposal is to maximize the average transmission rate of SUs through joint allocation of subcarriers and power. The closed-form expressions about the outage probability and average transmission rate of both PUs and SUs are derived. Simulation results show that compared with the conventional cognitive cooperation schemes, the average transmission rate of SUs improves.
KW - Cognitive Radio Networks
KW - Cooperation
KW - Joint Subcarrier and Power Allocation
KW - Reciprocally-Benefited Spectrum Sharing
UR - http://www.scopus.com/inward/record.url?scp=84912136338&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2014.6952524
DO - 10.1109/WCNC.2014.6952524
M3 - 会议稿件
AN - SCOPUS:84912136338
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1809
EP - 1814
BT - IEEE Wireless Communications and Networking Conference, WCNC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE Wireless Communications and Networking Conference, WCNC 2014
Y2 - 6 April 2014 through 9 April 2014
ER -