Non-orthogonal multiple access system based on time diversity for 5G applications

Novel coding and modulation methods are required for fulfilling the demands of 5G and beyond cellular communication systems. In this paper, an innovative time diversity non-orthogonal multiple access (TD-NOMA) approach is proposed for 5G applications. The suggested system uses time diversity (TD) in...

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Bibliographic Details
Published in:Optical and quantum electronics 2022-07, Vol.54 (7), Article 460
Main Authors: Zaki, Amira I., Samy, Amal A., Garg, Amit Kumar, Aly, Moustafa H.
Format: Article
Language:English
Subjects:
Basis functions
Bit error rate
Cellular communication
Characterization and Evaluation of Materials
Communications systems
Computer Communication Networks
Data transmission
Electrical Engineering
Lasers
Modulation
Nonorthogonal multiple access
Optical Devices
Optics
Orthogonal functions
Photonics
Physics
Physics and Astronomy
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Summary:Novel coding and modulation methods are required for fulfilling the demands of 5G and beyond cellular communication systems. In this paper, an innovative time diversity non-orthogonal multiple access (TD-NOMA) approach is proposed for 5G applications. The suggested system uses time diversity (TD) in conjunction with NOMA to improve the system bit error rate (BER) performance. The NOMA technique basically employes data transmission based on non-orthogonal basis functions. The data pass through the channel, and the desired signal can be obtained by a successive interference cancelation (SIC) receiver. Using different subcarriers and channel models, different modulation schemes such as QPSK and BPSK are investigated. When compared to conventional methodologies, the simulation results reveal that the proposed system outperforms them; it reduces the effect of fading for the multipath channel and enhances the BER.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-022-03877-4