Paper Info
Title
Beyond Nonorthogonal Multiple Access: New Role of Constructive Interference
Abstract
In this letter, we introduce a novel framework of constructive non-orthogonal multiple access (NOMA) transmission, which provides the merit of interference utilization and breaks through the constructive interference (CI)’s limitation on multiuser (MU) access capability. With dedicated synthetic successive coding and hybrid MU access designs, a novel constructive NOMA (CNOMA) precoder is proposed, which is particularly suitable for the scenario where users have heterogeneous throughput requirements. Explicitly, it makes the composite interference always beneficial to the users having high throughput requirement, while accommodating another sets of users under their subscribed reception-quality requirement. Finally, a number of fundamental properties of the CNOMA design is revealed, such as the tradeoff between utilization of MU interference and improvement of MU access capability. Simulation demonstrates that the proposed CNOMA precoder significantly outperforms the classic CI and minimum-mean-square-error precoders in throughput performance, and meanwhile obtains high access capability close to classic NOMA designs.
Year
DOI
Venue
2022
10.1109/LWC.2022.3197633
IEEE Wireless Communications Letters
Keywords
DocType
Volume
Constructive NOMA design,interference exploitation,multiuser access capability,precoding
Journal
11
Issue
ISSN
Citations 
10
2162-2337
0
PageRank 
References 
Authors
0.34
14
7
Name
Order
Citations
PageRank
Zhongxiang Wei13711.26
Christos Masouros2126394.92
Ping Wang31012.69
Xu Zhu437147.63
Haiyong Zeng501.69
Hong Tang600.68
Yan Zheng700.34