TY - JOUR
T1 - Power Allocation Study for Non-Orthogonal Multiple Access Networks with Multicast-Unicast Transmission
AU - Yang, Zheng
AU - Hussein, Jamal Ahmed
AU - Xu, Peng
AU - Ding, Zhiguo
AU - Wu, Yi
N1 - Funding Information:
Manuscript received June 23, 2017; revised November 16, 2017 and February 3, 2018; accepted February 6, 2018. Date of publication March 15, 2018; date of current version June 8, 2018. The work of Z. Yang and Y. Wu was supported in part by the National Natural Science Foundation of China under Grant 61701118 and Grant 61571128, and in part by the Natural Science Foundation of Fujian Province, China, under Grant 2018J05101. The work of P. Xu was supported in part by the National Natural Science Foundation of China under Grant 61701066, in part by the Scientific and Technological Research Program of Chongqing Municipal Education Commission under Grant KJ1704088, and in part by the Doctoral Initial Funding of Chongqing University of Posts and Telecommunications under Grant A2016-84. The work of Z. Ding was supported in part by UK EPSRC under Grant EP/P009719/1 and in part by H2020-MSCA-RISE-2015 under Grant 690750. The associate editor coordinating the review of this paper and approving it for publication was M. Payaró. (Corresponding author: Yi Wu.) Z. Yang and Y. Wu are with the Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou 350007, China (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2002-2012 IEEE.
PY - 2018/6
Y1 - 2018/6
N2 - This paper considers a downlink single-cell non-orthogonal multiple access (NOMA) network, where the base station, which has multiple antennas, broadcasts the mixed multicast and unicast messages to multiple users with a single antenna. We propose two types of power allocation schemes for NOMA networks with multicast-unicast transmission to investigate the impact of performance, namely, cognitive radio inspired NOMA with dynamic quality of service (QoS) at multicast users (CR-NOMA-D-M), and CR-NOMA constrains the dynamic QoS at the unicast user (CR-NOMA-D-U). Based on the proposed schemes, we drive the exact/closed-form expressions for the secrecy outage probability, outage probability, as well as the approximate outage probability at high signal-to-noise ratio to study the diversity gain. Compared with existing works, the derived analytical results show that both proposed schemes cannot only significantly improve the outage performance for multicast users, but also remarkably enhance the diversity gain and the secrecy outage probability for the unicast user. Finally, the theoretical results are validated by the numerical results.
AB - This paper considers a downlink single-cell non-orthogonal multiple access (NOMA) network, where the base station, which has multiple antennas, broadcasts the mixed multicast and unicast messages to multiple users with a single antenna. We propose two types of power allocation schemes for NOMA networks with multicast-unicast transmission to investigate the impact of performance, namely, cognitive radio inspired NOMA with dynamic quality of service (QoS) at multicast users (CR-NOMA-D-M), and CR-NOMA constrains the dynamic QoS at the unicast user (CR-NOMA-D-U). Based on the proposed schemes, we drive the exact/closed-form expressions for the secrecy outage probability, outage probability, as well as the approximate outage probability at high signal-to-noise ratio to study the diversity gain. Compared with existing works, the derived analytical results show that both proposed schemes cannot only significantly improve the outage performance for multicast users, but also remarkably enhance the diversity gain and the secrecy outage probability for the unicast user. Finally, the theoretical results are validated by the numerical results.
KW - diversity gain
KW - multicast-unicast transmission
KW - Non-orthogonal multiple access
KW - outage probability
KW - secrecy outage probability
UR - http://www.scopus.com/inward/record.url?scp=85043760078&partnerID=8YFLogxK
U2 - 10.1109/TWC.2018.2806972
DO - 10.1109/TWC.2018.2806972
M3 - Article
AN - SCOPUS:85043760078
SN - 1536-1276
VL - 17
SP - 3588
EP - 3599
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 6
ER -