Encyclopedia of Wireless Networks

Living Edition
| Editors: Xuemin (Sherman) Shen, Xiaodong Lin, Kuan Zhang

Non-orthogonal Multiple Access

  • Zekun ZhangEmail author
  • Haijian Sun
  • Xianfu Lei
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-32903-1_57-1

Synonyms

Definition

Non-Orthogonal multiple access (NOMA) is a multiple access method proposed by NTT DoCoMo for the next-generation (5G) mobile network. NOMA is a type of non-orthogonal multiplexing where users are multiplexed in the power domain, which is not sufficiently utilized by previous wireless mobile systems. Specifically, signals from different users are superposed at the transmitter side and separated at receiver by using successive interference cancellation (SIC). Note that in some articles, “NOMA” is used as a general name for any scheme that multiplexes users in a non-orthogonal manner, instead of the specific scheme described above. In such articles NOMA proposed by NTT DoCoMo normally is renamed as power domain NOMA (PD-NOMA).

Historical Background

Multiple access (MA) scheme has been regarded as a key technology to distinguish each generation of wireless communication systems in the past decades. In the existing wireless systems,...

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References

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Utah State UniversityLoganUSA
  2. 2.Southwest Jiaotong UniversityChengduChina

Section editors and affiliations

  • Rahim Tafazolli
  • Rose Hu

There are no affiliations available