Performance Evaluation of Generalized Frequency Division Multiplexing Systems Over Non-Linearities With Memory

IEEE Access

卷:7

Raimundo Sampaio-Neto¹  Leonel Soncco²  Juan Borja²  Alexander Hilario-Tacuri³  Diego Donaires⁴  Jose Mauro P. Fortes⁵ 

[1] ;

[2] Department of Electrical Engineering, Pontificia Universidade Cat&x00F3;

[3] Department of Electronic Engineering, Universidad Nacional de San Agust&x00ED;

[4] lica do Rio de Janeiro, Rio de Janeiro, Brazil;

[5] n de Arequipa, Arequipa, Per&x00FA;

关键词: 5G mobile communication;    bit error rate;    GFDM;    non-linear distortion;    out-of-band emission;    performance analysis;   

DOI  :  10.1109/ACCESS.2019.2936840

来源: DOAJ

【 摘 要 】

The fifth generation (5G) of mobile communications systems plans to support different types of applications, where each of these applications may have different requirements. For this reason, the main characteristic of 5G mobile communications systems is the flexibility of their architecture. An interesting proposal that can meet the requirements of these applications is the multi-carrier waveform Generalized Frequency Division Multiplexing (GFDM). However, due to its multi-carrier nature, this new waveform is highly sensitive to non-linear distortions arising mainly from high-power amplifiers (HPA). In addition, the wideband characteristics of multi-carrier signals result in frequency-dependent distortions, typically know as memory effects. This paper presents the development of closed-form analytical expressions that could be used to evaluate the impact of the distortions induced by non-linearities with memory in the out-of-band emissions and the bit error rate performance of GFDM-based systems. The resulting analytical expressions are general enough to obtain numerical results for different parameters of the GFDM-based system.

【 授权许可】

Unknown