Under Test Filtered-OFDM And UFMC 5g Waveform Using Cellular Network (original) (raw)
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Comparison of Various Modulation Technique OFDM, FBMC & UFMC
International Journal of Innovative Research in Technology, 2019
To design a new waveform for 5G communications with a lower peak / average power ratio and a high S pectra Efficiency methods / S tatistical analysis: In this document, orthogonal frequency division multiplexing (OFDM), filter bank Multi-carrier (FBMC) and Universal Multi-Conveyor Filtered (UFMC) are compared and the PAPR of these techniques is analyzed Applying different subcarriers and modulation techniques. Discoveries: S pectral efficiency is poor in OFDM due to presence of a cyclic prefix and efficiency can be improved by FBMC and UFMC. The use of separate filters for individuals. the subcarriers eliminate the cyclic prefix and an increase in the subcarriers further reduces the PAPR. The PAPR varies according to the modulation techniques used. Application / improvements: UFMC is the best waveform technique for 5Gwhen compared to OFDM and FBMC, which will have less PAPR and PAPR is further reduced by applying Optimization techniques
An Overview of Various Waveform Contenders Based on OFDM for 5G Communication
International Journal of Trend in Scientific Research and Development, 2018
The rollout of fifth generation(5G) wireless communication technology provides high spectral efficiency, high speed, greater density of users, high capacity, pseudo outdoor communication etc. In the year 2020, the data consumption is expected to increase 30% which cannot be supported by the current technologies such as 3G and 4G. The (4G) mobile communication uses Orthogonal Frequency Division Multiplexing (OFDM) technique in various systems like-Wi-MAX. Now as the technology is being advanced to 5G, there are some drawbacks of OFDM like-peak to average power ratio (PAPR), out of band emissions (OOB), and use of cyclic prefix (CP).In this paper, the drawbacks of Ofdm in Lte has been removed using the waveforms contenders like UFMC, FBMC, and GFDM overwhelmingly welcomed for the 5G air interface. applications of 5G are Internet of Things (IoT), Vehicle to Vehicle (V2V) communication, Machine to Any (M2X) communication.
Comparison of Various Waveform Contenders of 5G Wireless Communication Based on OFDM
International Journal of Trend in Scientific Research and Development, 2018
This paper presents an extensive and fair comparison among the most promising waveform contenders for the 5G air interface which includes-Filtered OFDM, Filter-bank multi carrier (FBMC), universal multi-carrier (UFMC) has been compared with OFDM in terms of spectral efficiency and rate using mat lab. The disadvantages of OFDM have been addressed and it has shown that (fofdm), (UFMC), (FBMC) could be a more effective solution. FBMC is a method for improving out of band (OOB) characteristics by filtering each subcarrier, it is also expected to improve the Inter-Carrier Interference (ICI) characteristics while UFMC is a method for improving OOB characteristics by filtering each block.
Performance of CP-Ofdm, PCC-Ofdm and Ufmc-Ofdm for 5G Uplink Communications
2021
In the advancement of technological era, Communication being the first and foremost important aspect of technology which is improving day by day. In order to step forward towards the innovations, this “PERFORMANCE OF CPOFDM, PCC-OFDM AND UFMC-OFDM FOR 5G UPLINK COMMUNICATIONS” has been undertaken. In this system we are using PCC-OFDM which is suitable for 5-G uplink communication. As it's miles localized in each time and frequency area.%-OFDM in Additive White Gaussian Noise (AWGN) calls for 3 dB decrease sign-To-Noise Ratio (SNR) for a given Bit-mistakes-charge(BER), and the SNR benefit of PCCOFDM will increase swiftly while there are timing and/or frequency offsets and it compares PCC-OFDM(PolynomialCancellation-Coded-Orthogonal Frequency Division Multiplexing) with CP-OFDM(Cyclic Prefix Orthogonal Frequency Division Multiplexing) and UFMC-OFDM(Universal Filtered Multicarrier Orthogonal Frequency Division Multiplexing ) in the uplink of multiuser system using OFDMA(Orthogonal ...
Multicarrier Modulation Schemes for 5G Wireless Access
ECTI Transactions on Computer and Information Technology (ECTI-CIT)
The 5G wireless access technology will supersede its predecessor, 4G, in the current decade, at first coexisting with it and later as a standalone technology. This work examines and compares the performance of the following orthogonal multicarrier schemes: Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM), Windowed Orthogonal Frequency Division Multiplexing (W-OFDM), Filtered Orthogonal Frequency Division Multiplexing (F-OFDM), Universal Filtered Multi-Carrier (UFMC), and Filter Bank Multi-Carrier (FBMC). The system architecture of each scheme is investigated while considering the performance in fading channel models. The simulation was performed using a standard set of parameters, and the performance was appraised based on Power Spectral Density (PSD), Peak to Average Power Ratio (PAPR), Complementary Cumulative Distribution Function (CCDF) of PAPR, Bit Error Rate (BER), and Signal to Noise Ratio (SNR). In addition, a comprehensive analysis is presented concerning ...
Spectral Efficiency Improvement Techniques in OFDM and UFMC
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022
This article describes about to analyse the spectral efficiency of different modulation techniques in OFDM and UFMC. UFMC is a multi-carrier modulation technique in fifth generation network (5G). In this paper, we review the different modulation techniques in 5G technology and motivate the need of UFMC technique in 5G wireless communication. In 4G OFDM modulation technique, some drawbacks like side band leakages, high Peak to Average Power ratio (PAPR) and spectrum utilization degrades the performance of the system. Another multi carrier technique called Filter Bank Multi carrier (FBMC) which is better than OFDM, have some issues in practical aspects. So by considering the above parameters a move to another technique called Universal Filtered Multi Carrier (UFMC) is used because of good spectrum usage. This paper also explains about the UFMC system model. Based on the Simulation results in MATLAB, the spectrum utilization of UFMC system is much better than OFDM system.
A Comparison of CP-OFDM, PCC-OFDM and UFMC for 5G Uplink Communications
arXiv (Cornell University), 2018
Polynomial-cancellation-coded orthogonal frequency division multiplexing (PCC-OFDM) is a form of OFDM that has waveforms which are very well localized in both the time and frequency domains and so it is ideally suited for use in the 5G network. This paper analyzes the performance of PCC-OFDM in the uplink of a multiuser system using orthogonal frequency division multiple access (OFDMA) and compares it with conventional cyclic prefix OFDM (CP-OFDM), and universal filtered multicarrier (UFMC). PCC-OFDM is shown to be much less sensitive than either CP-OFDM or UFMC to time and frequency offsets. For a given constellation size, PCC-OFDM in additive white Gaussian noise (AWGN) requires 3dB lower signal-to-noise ratio (SNR) for a given bit-error-rate, and the SNR advantage of PCC-OFDM increases rapidly when there are timing and/or frequency offsets. For PCC-OFDM no frequency guard band is required between different OFDMA users. PCC-OFDM is completely compatible with CP-OFDM and adds negligible complexity and latency, as it uses a simple mapping of data onto pairs of subcarriers at the transmitter, and a simple weighting-and-adding of pairs of subcarriers at the receiver. The weighting and adding step, which has been omitted in some of the literature, is shown to contribute substantially to the SNR advantage of PCC-OFDM. A disadvantage of PCC-OFDM (without overlapping) is the potential reduction in spectral efficiency because subcarriers are modulated in pairs, but this reduction is more than regained because no guard band or cyclic prefix is required and because, for a given channel, larger constellations can be used.
Performance analysis of 5 G waveforms with LTE
2018
In recent times, new waveforms for 5G have been explored in multiple ways. It is difficult for the current mobile communication to assist the future mobile traffic requirement. To overcome this issue, studies have been carried out in 5 th generation mobile communication has been. New waveforms such as UFMC (universal filtered Multi-carrier), FBMC (filtered bank Multi-carrier), F-OFDM (filtered orthogonal frequency division multiplexing) and W-OFDM (windowed-OFDM) are considered as very substantial candidates in respect of 5G system. An attempt has been made to evaluate the spectral properties of waveforms in this paper. The experimental results proved that the effective utilization of spectrum for each waveform.
Filtered orthogonal frequency division multiplexing for improved 5G systems
10.11591/eei.v10i4.3119, 2021
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.
The fifth generation mobile communication will be deployed in many countries by 2020 which aims to furnish a real wireless world free from present obstacles in communication system which is a great motivating factor for all the researchers, academicians and engineers. The new technologies are being investigated that provide high speed, capacity, spectral efficiency, energy efficiency, pseudo outdoor communication, etc. that solves the existing problems in mobile communication system. This paper aims to highlight the aspects of Multicarrier modulation scheme which is popular with Fifth Generation (5G) with Filter Bank Multi Carrier (FBMC) modulation scheme. OFDM is an incredible Multiple Access Modulation strategy adopted in Fourth Generation (4G) communication system even though it is not exempt of defects. OFDM suffers from the difficulty of Side band leakage. To overcome this, FBMC modulation scheme is used. This paper gives an overview of dominant metrics like Power Spectral Density (PSD), Bit Error Rate (BER) of forthcoming Cellular Communication System's modulation scheme. The simulation results of FBMC under perfect channel assumption gives BER values of 0.010213, 0.009945 for K=3, 4 respectively at a Signal to Noise Ratio (SNR) of 5dB. It is also observed that the effect of Rayleigh and Rician channels in FBMC give BER values of 0.49988, 0.5081 and 0.15615, 0.12549 for K=3, 4 respectively. From the simulation results it is observed that, FBMC outperforms the most popularity gained by 4G modulation technique.