面向5G的非正交多址接入技术

doi:10.11959/j.issn.1000-0801.2019188

Telecommunications Science ›› 2019, Vol. 35 ›› Issue (7): 27-36.doi: 10.11959/j.issn.1000-0801.2019188

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Key technologies of non-orthogonal multiple access for 5G systems

Yuanyuan DONG,Yujie ZHANG,Hua Li,Chunlei WANG,Xiaofei LIU,Xiaoming DAI

School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China

Revised:2019-07-08 Online:2019-07-20 Published:2019-07-22
Supported by:
The National Natural Science Foundation of China(61871029);Beijing Natural Science Foundation (No. L172049),Beijing Municipal Commission of Science and Technology(L172049);Beijing Municipal Commission of Science and Technology(Z181100003218008)

Abstract

Abstract:

With the unprecedented increase of mobile data traffic brought by the wide proliferation of smart phones and tablet computers, the non-orthogonal multiple access (NOMA) has attained great attention due to its overloading capability in the case of limited spectrum resources. Firstly, the complexity-constrained NOMA design principle was proposed. Then, a comprehensive study of key NOMA schemes was conducted, in which the theory of each scheme was provided. Next, the low complexity expectation propagation (EP) based detectors were designed. Finally, the performance of NOMA and the conventional orthogonal multiple access (OMA) was compared via simulations. The simulation results illustrate that the NOMA has superior capacity and block error rate (BLER) than the conventional OMA.

Key words: limited spectrum resource, non-orthogonal multiple access, complexity-constrained, low complexity receiver

CLC Number:

TP393

Yuanyuan DONG, Yujie ZHANG, Hua Li, Chunlei WANG, Xiaofei LIU, Xiaoming DAI. Key technologies of non-orthogonal multiple access for 5G systems[J]. Telecommunications Science, 2019, 35(7): 27-36.

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