TAN Yizhi, CHEN Baoren. Joint Channel Estimation and Power Allocation for the CRS-NOMA[J]. Chinese Journal of Electronics, 2020, 29(1): 177-182. doi: 10.1049/cje.2019.12.003
Citation: TAN Yizhi, CHEN Baoren. Joint Channel Estimation and Power Allocation for the CRS-NOMA[J]. Chinese Journal of Electronics, 2020, 29(1): 177-182. doi: 10.1049/cje.2019.12.003

Joint Channel Estimation and Power Allocation for the CRS-NOMA

doi: 10.1049/cje.2019.12.003
Funds:  This work is supported by the Natural Science Foundation of Guangdong Province (No.2018A030310593) and the Science and Technology Plan Project of Guangzhou City (No.201904010371).
  • Received Date: 2019-06-11
  • Rev Recd Date: 2019-09-29
  • Publish Date: 2020-01-10
  • We study the channel estimation and power allocation method for the Cooperative relaying system using Non-orthogonal multiple access (CRS-NOMA). Our object is maximizing the Average effective signal-tointerference-and-noise ratio (AESINR) of the weak user while guaranteeing bounded AESINR for the strong user. We transform the nonconvex optimization problem into a Difference of convex (DC) programming and propose a Sequential parametric convex approximation (SPCA) based iterative algorithm to obtain a local optimum. For comparison, we consider a similar optimization problem for a Non-cooperative NOMA (NC-NOMA) system. Simulation results show that the AESINR performance of the CRS-NOMA outperforms signicantly that of the NCNOMA system.
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