Name
Title | ||
|---|---|---|
Phase Rotated Non-Orthogonal Multiple Access for Superposition of 3-User Signals Employing Joint MUD and SIC |
Abstract | ||
|---|---|---|
Non-orthogonal multiple access (NOMA) has attracted much attention in 5G, for its high usage efficiency of spectrum. Successive interference cancellation (SIC) cancels dominant interference and detects desired signals on the receiver side. However, when transmit power levels allocated to the users let some superposed constellation points get close to others, the bit error rate (BER) performance deteriorates severely. To alleviate such degradation, this paper proposes a novel phase rotated NOMA scheme, and analyzes the optimum angle of the phase rotation in 3-user NOMA signals. Even when multiuser detection (MUD), which simultaneously detects both desired and interfering signals, is employed, the BER performance is still degraded due to short minimum distance between the superposed constellation points. To improve the BER performance furthermore, this paper also proposes a joint MUD and SIC scheme, which exploits the advantages of both the schemes. Computer simulations demonstrate that the joint detection scheme with the phase rotation outperforms other detection schemes with or without the phase rotation. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/ISPACS.2018.8923478 | 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) |
Keywords | Field | DocType |
BER performance,interfering signals,desired signals,multiuser detection,3-user NOMA signals,NOMA scheme,bit error rate performance,superposed constellation points,transmit power levels,dominant interference,successive interference cancellation,joint MUD,3-user signals,phase rotated nonorthogonal multiple access,detection schemes,phase rotation,joint detection scheme,SIC scheme | Noma,Superposition principle,Transmitter power output,Computer science,Control theory,Single antenna interference cancellation,Multiuser detection,Electronic engineering,Constellation,Interference (wave propagation),Bit error rate | Conference |
ISSN | ISBN | Citations |
2642-3510 | 978-1-5386-5772-0 | 0 |
PageRank | References | Authors |
0.34 | 5 | 2 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yuyuan Chang | 1 | 0 | 0.34 |
| Kazuhiko Fukawa | 2 | 212 | 39.25 |