BER analysis of GFDM system augmented with SC diversity combining scheme for diverse Pulse Shaping Filters

Kumar, Pawan; Kansal, Lavish; Gaba, Gurjot Singh; Bakkali, Mohamed El; Tubbal, Faisel; Abulgasem, Suhila

doi:10.1109/tssa.2018.8708808

Cited by 2 publications

(3 citation statements)

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“…Note that λ(ω) is defined by the designer. In view of (17) and (18), the optimization problem can be reformulated and solved using the QP approach.…”

Section: A Problem Formulationmentioning

confidence: 99%

“…To summarize, the pulse shaping filter design problem (17) and (18) can be simplified to the following QP problem:…”

Section: B Problem Simplificationmentioning

confidence: 99%

“…On top of the advantageous properties of OFDM systems, GFDM systems are well-suited for different 5G scenarios by flexibly manipulating the system parameters, which consists of subcarriers, subsymbols, and the pulse shaping filters. Existing ideal pulse shaping filters such as the raised cosine (RC) and root raised cosine (RRC) are usually used in the GFDM system [14]- [17]. Ideal filters are non-causal and practically unrealizable .…”

Section: Introductionmentioning

confidence: 99%

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Performance of GFDM Systems Using Quadratic Programming Pulse Shaping Filter Design

et al. 2020

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Generalized Frequency Division Multiplexing (GFDM) has been considered as an attractive candidate to replace Orthogonal Frequency Division Multiplexing (OFDM) for the fifth generation (5G) mobile networks. GFDM system has better spectral characteristics compared to the OFDM system due to the use of properly selected pulse shaping filters. Non-causal ideal filters, such as the raised cosine (RC), are commonly used in the GFDM systems. In practical implementation, non-causal filters need to be truncated and shifted, which will increase the out-of-band (OOB) radiation of the signal and will introduce delay to the system. High OOB radiation will cause interferences between the adjacent channels, thus it should be minimized. This paper proposes to minimize the OOB radiation of the GFDM system using the designed pulse shaping filters. The pulse shaping filters are designed using the computationally efficient quadratic programming (QP) approach. Numerical results illustrate that OOB radiation level of the GFDM system is lower when the QP filters are used compared to the conventional RC filter. Further investigation shows that the use of the QP filters are efficient in increasing the high power amplifier (HPA) efficiency, improving the spectral efficiency, and reducing the BER at the receiver.

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“…Note that λ(ω) is defined by the designer. In view of (17) and (18), the optimization problem can be reformulated and solved using the QP approach.…”

Section: A Problem Formulationmentioning

confidence: 99%

“…To summarize, the pulse shaping filter design problem (17) and (18) can be simplified to the following QP problem:…”

Section: B Problem Simplificationmentioning

confidence: 99%