Encyclopedia of Wireless Networks

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

Cognitive Radio-Based Non-orthogonal Multiple Access

  • Zhenyu NaEmail author
  • Mengshu Zhang
  • Yuyao Wang
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-32903-1_207-1



Cognitive Radio-based Non-orthogonal Multiple Access (CR-NOMA) is a derivation of NOMA. In CR-NOMA, a user with bad channel condition is viewed as the primary user (PU), while a user with good channel condition is regarded as the secondary user (SU), which is squeezed into the spectrum occupied by PU (Ding et al. 2016). CR-NOMA opportunistically serves one user on the condition that other users’ Quality of Service (QoS) is guaranteed.

Historical Background

The advent of CR-NOMA is driven by the advantages of NOMA and CR. Recently, NOMA has attracted increasing attention because of its high spectral utilization. At the transmitter side, multiple users’ signals can be transmitted simultaneously in time domain, frequency domain, or code domain by utilizing power domain multiplexing. At the receiver side, the multiplexed signals can be separated by using Successive Interference Cancellation (SIC). Thus, the resource block...

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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.School of Information Science and TechnologyDalian Maritime UniversityDalianChina

Section editors and affiliations

  • Ning Zhang
    • 1
  1. 1.Texas A&M University at Corpus ChristiCorpus ChristiUSA