WF-OFDM (windowing and filtering OFDM) system for the 5G new radio waveform

An, Changyoung; Kim, Byeongjae; Ryu, Heung‐Gyoon

doi:10.1109/intercon.2017.8079635

Cited by 13 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ISI and inter channel interference (ICI) free. And because of the orthogonality we can also remove adjacent channel interference (ACI) and co-channel interference (CCI) from our considerations [27]. For each simulation, only either no of subcarriers or no of taps per channel were changed.…”

Section: Resultsmentioning

confidence: 99%

An adaptive channel estimation scheme based on redundancy minimization for filtered OFDM networks

Hasan

Motakabber²,

Habaebi³

et al. 2023

TELKOMNIKA

View full text Add to dashboard Cite

Filtered orthogonal frequency division multiplexing (F-OFDM), a technology which is being considered as a promising platform for beyond 4G era is expected to help deliver the new features at millimeter wave in the new 5 th generation of cellular communication. Some of its key features notably better spectral utilization, enhanced throughput and immunity to interference can be enabling for the new cellular standards. These features of filtered OFDM comes with strict requirements of filter design, guard tone managements, and efficient channel state information harness. This paper is intended to propose an intuitive channel estimation scheme which will allow efficient acquisition of channel state information (CSI) through exploiting the redundant steps of the conventional pilot training-based algorithms and by also using an adaptive weight to expedite the minimization of the error between the estimated values and the actual values. Various simulations will follow to demonstrate the superiority of the scheme over traditional pilot-based algorithms and thus prove its utility in the current 5G cellular era.

show abstract

Section: Resultsmentioning

confidence: 99%

An adaptive channel estimation scheme based on redundancy minimization for filtered OFDM networks

Hasan

Motakabber²,

Habaebi³

et al. 2023

TELKOMNIKA

View full text Add to dashboard Cite

show abstract

“…Windowing signal in time domain before transmitting leads to much smoother shape, that reduces power in side lobes [6]. Windowing can be used with some other techniques, as filtering [7] or precoding [8] to achieve better results.…”

Section: Weight Functions For Windowigmentioning

confidence: 99%

Window Processing of Wireless OFDM System in the Spectral Concentrated Interference Channel

Vanin

Ryu

2023

Preprint

Self Cite

View full text Add to dashboard Cite

When there is any particular interference or jamming signal against the OFDM (orthogonal frequency division multiplexing) wireless communication system, it is badly serious problem for the communication performance even though the OFDM system is inherently robust to interference than the single carrier communication system. Therefore, it is very important to design the counter-measure to this kind of interference. So, in this paper, window processing using the weighting function is introduced to recover the information data in parallel with the spreading and error correcting method. This paper describes the wireless OFDM communication system in the strong SCI (spectral concentrated interference) channel. To make the windowing processing of OFDM Signal in the SCI channel, several weighting functions are used and analyzed in the time and frequency domain. So, window processing using the weight function in combination with nonlinear compensation method allows to increase robust against SCI and system improvement. Several window functions are proposed and compared to evaluated for the communication performances. Computer simulations show the differences in BER (bit error rate) performance in various conditions with various window functions. It can be concluded that the proposed method is pretty efficient in the SCI channel.

show abstract

“…In another suggestion, Bazzi proposed to use Von Hann window, following the same procedure of Abdoli, however, an outperforming behavior with respect to FBMC and UFMC, but the OOB emission can be recognized significantly [23]. It is necessary and essential to avoid additional computational complexity, since the latency increased, C. that destroys the latency due to the additional computational complexity, where windowing/filtering is configured according to the location of the filter or the window, thus, four configurated schemes produced but at the cost of the degraded latency [24]. The Gaussian window-based filter proposed in other work aiming to reduce the OOB emission [25].…”

Section: Introductionmentioning

confidence: 99%

Filtered orthogonal frequency division multiplexing for improved 5G systems

Sahrab

Yaseen

2021

Bulletin EEI

View full text Add to dashboard Cite

Wireless communications became an integrated part of the human life. Fifth generation (5G) is the modern communication which provides enhanced mobile broadband (eMBB), ultra reliable low latency communications (URLLC), and massive machine type communication (mMTC). Thus, 5G have to provide coverage to multi-numerology devices, therefore, modulation and access schemes are suggested in the literature such as cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and filtered OFDM (f-OFDM). CP-OFDM suffers from the high out of band emission which limited the multi-numerology applications. In f-OFDM, the out of band emission can be suppressed to an accepted extent such that different numerologies can be coexisting. On the other hand, f-OFDM can be more improved by using a proper filtering approach. In this paper three different filters are suggested based windowed-sinc function; Hanning, Hamming, and Blackman. Simulation results show that the proposed filters are promising for high spectral efficiency and out of band emission rejection. Furthermore, the bit error rate, error vector magnitude, and power spectral density are further improved with respect to CP-OFDM scheme but some trade-off is present. Overall, the suggested windowed-sinc filters are outperforming the traditional CP-OFDM. As a conclusion, the suggested windnowed-sinc filters have no limitations on the modulation order or the number of subcarriers utilized in the system.

show abstract

WF-OFDM (windowing and filtering OFDM) system for the 5G new radio waveform

Cited by 13 publications

References 9 publications

An adaptive channel estimation scheme based on redundancy minimization for filtered OFDM networks

An adaptive channel estimation scheme based on redundancy minimization for filtered OFDM networks

Window Processing of Wireless OFDM System in the Spectral Concentrated Interference Channel

Filtered orthogonal frequency division multiplexing for improved 5G systems

Contact Info

Product

Resources

About