NDLI: Power allocation scheme for downlink and uplink NOMA networks

Content Provider	IET Digital Library
Author	Xie, Shaoguo
Abstract	Resource allocation problem is a key issue in multi-carrier non-orthogonal multiple access (NOMA) networks. Maximum access problem and power allocation problem are two important problems in resource allocation problem. In this study, two algorithms are proposed to solve the two problems for multi-carrier NOMA networks, namely mixed integer programming algorithm (MIPA) and dynamic power allocation algorithm (DPAA). In order to solve the maximum access problem, a MIPA is proposed in uplink multi-carrier NOMA networks. For the power allocation problem, a DPAA is proposed in downlink multi-carrier NOMA networks. Simulation results show that MIPA can increase the number of supported users compared to other schemes, DPAA can improve user data rate by increasing mean channel quality indicator and make power allocation more reasonable. According to DPAA, the gains of weighted sum-rate utility per subcarrier can be improved with the increase in the number of subcarriers. Simulation results also show that the proposed scheme is superior to reservation channel technique in terms of the probability of call dropping and probability of call blocking.
Starting Page	2336
Ending Page	2343
Page Count	8
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 15, Sep (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0066
Journal	IET Communications
Publisher Date	2019-06-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Cellular Radio Channel Allocation Downlink Multicarrier NOMA Network DPAA Dynamic Power Allocation Algorithm Electromagnetic Compatibility Integer Programming Interference Interference Suppression Maximum Access Problem MIPA Mobile Radio System Multi-access System Multicarrier Nonorthogonal Multiple Access Network Multiple Access Communication Optimisation Technique Power Allocation Problem Power Allocation Scheme Probability Radio Frequency Interference Radio Link Radio Link And Equipment Resource Allocation Resource Allocation Problem Uplink Multicarrier NOMA Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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