Theoretical Analysis of the Peak-to-Average Power Ratio and Optimal Pulse Shaping Filter Design for GFDM Systems

2019 ◽  
Vol 67 (13) ◽  
pp. 3455-3470 ◽  
Author(s):  
Kaiming Liu ◽  
Weifeng Deng ◽  
Yuan'an Liu
2021 ◽  
Author(s):  
Feng-Cheng Tsai ◽  
Fang-Biau Ueng ◽  
Ding-Ching Lin

OFDM has two disadvantages. The first is high peak-to-average power ratio (PAPR), and the second is high out-of-band (OOB) radiated power. In the future communication applications, the diversified scenarios such as Internet of Things, inter-machine communication and telemedicine make the fourth-generation mobile communication no longer applicable. The generalized frequency division multiplexing (GFDM) has a pulse-shaping filter, which has less out-of-band radiated power and peak-to-average power ratio and fewer cyclic prefixes (CP) than OFDM. In order to meet high- data-transmission rate, it is an inevitable trend to install massive multi-input multi-output (massive MIMO) antennas. As the number of antennas increases, so does its complexity. This paper employs time reversal (TR) technology to reduce the computational complexity. Although the number of base station (BS) antennas has increased to eliminate interference, there is still residual interference. In order to eliminate the interference one step further, we deploy a zero forcing equalization (ZF equalization) after the time reversal combination.


Author(s):  
Ayse Adalan ◽  
Michael Fischer ◽  
Thomas Gigl ◽  
Klaus Witrisal ◽  
Arpad L. Scholtz ◽  
...  

Author(s):  
T. NAGARAJU ◽  
K. RAMANAIDU

The main drawback of the OFDM is its high peak to average power ratio(PAPR).There are several PAPR reduction techniques. Among the various PAPR reduction techniques, companding transform is attractive for its simplicity and effectiveness. This paper proposes a new companding algorithm. The proposed algorithm offers an improved bit error rate and minimized out-of-band interference while reducing PAPR effectively, compared with the others. Theoretical analysis and numerical simulation are presented.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 37134-37146 ◽  
Author(s):  
Zee Ang Sim ◽  
Filbert H. Juwono ◽  
Regina Reine ◽  
Zhuquan Zang ◽  
Lenin Gopal

2000 ◽  
Vol 36 (17) ◽  
pp. 1505 ◽  
Author(s):  
Myung-Soon Kim ◽  
Dae-Ik Kim ◽  
Jin-Gyun Chung ◽  
Myung-Sub Lim

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