Multicarrier Modulation Schemes for 5G Wireless Access (original) (raw)
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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.
Spectrum analysis of OFDM versus FBMC in 5G mobile communications
TELKOMNIKA, 2023
With the demand for mobile data traffic, multi-carrier transmission techniques are highly attractive for all-new wireless communication systems, which divides data into many components and sends each of these components via a different carrier signal. So far, orthogonal frequency division multiplexing (OFDM) and filter bank multi-carrier (FBMC) techniques are the dominant waveform contenders. A number of studies have been made and failed to give a complete comparison where they did not consider various conditions altogether. Therefore, this paper addresses a complete comparative analysis of OFDM and FBMC, performed based on spectral efficiency, modulation, demodulation, power spectral densities, and peak to average power ratio comparison, all simulated using Matlab and GNU's not unix radio (GNU-radio) software.
Filter Bank Multicarrier Modulation Techniques for 5G and Beyond Wireless Communication Systems
European Journal of Electrical Engineering and Computer Science, 2022
Higher data rates, higher mobility, lower latency, and better quality of service are the prime requirements for future communication systems. It is expected to provide connectivity to the Internet of everything, time-sensitive/time-engineered application, and service to high-fidelity holographic society. Its performance in terms of data rate, latency, synchronization, security, and reliability will be much better compared to 4G and 5G mobile communication systems. This paper investigates the performance of the pulse shaping-based filter bank multicarrier (FBMC) modulation technique used in 5G mobile communication systems. Simulation results show that the FBMC system has a better performance compared to the conventional orthogonal frequency division multiplexing (OFDM) system in terms of many parameters such as achievable channel capacity, signal to noise ratio, time, and frequency response, out of band leakage, etc.
Under Test Filtered-OFDM And UFMC 5g Waveform Using Cellular Network
Journal of Southwest Jiaotong University
In this study, filtered orthogonal frequency division multiplexing (F-OFDM) and universal filtered multicarrier (UFMC) were proposed for complexity reduction in the 5G waveform. Cyclic prefix orthogonal frequency division multiplexing (CP_OFDM) is well suited for 4G; however, the major problem of the 4G modulation methods is their susceptibility to high peak to average power ratio (PAPR). Another problem of OFDM is the issue of sideband leakage. The existing 4G systems mainly depend on the CP_OFDM waveform, which cannot support the host of applications provided by the 5G platform. 5G-generated traffic is likely to exhibit different features and requirements compared to the existing wireless technology. Consequently, investigations have been devoted to other multiple access schemes. The existing limitations of OFDM can be mitigated by using the UFMC technique. To ensure that the demands and requirements of the upcoming 5G cellular networks are satisfied, this study presents an enable...
Comparative Analysis of FBMC and OFDM Multicarrier Techniques for Wireless Communication Networks
International Journal of Computer Applications, 2014
Multicarrier (MC) techniques are highly attractive for the development of modern wireless communication systems such as 4 th Generation (4G) and Long Term Evolution (LTE) systems. So far, Orthogonal Frequency Division Multiplexing (OFDM) is the most popular and highly recommended modulation technique for Dynamic spectrum access (DSA) and Cognitive Radio (CR) applications. Despite their numerous advantages, OFDM system suffers from few drawbacks. Filter bank Multicarrier (FBMC), another modulation technique evolved from OFDM which overcomes these drawbacks is examined. FBMC applies filter banks and omits the severe out of band leakage of OFDM. This paper presents the comparative performance analysis of conventional OFDM system and FBMC system in terms of Signal to noise ratio (SNR), Bit error rate (BER), Packet delivery ratio(PDR) and number of packets dropped with the help of computer simulations performed using NETWORK SIMULATOR NS-2.34.
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
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 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 ...
ArXiv, 2014
5G cellular communications promise to deliver the gigabit experience to mobile users, with a capacity increase of up to three orders of magnitude with respect to current LTE systems. There is widespread agreement that such an ambitious goal will be realized through a combination of innovative techniques involving different network layers. At the physical layer, the OFDM modulation format, along with its multiple-access strategy OFDMA, is not taken for granted, and several alternatives promising larger values of spectral efficiency are being considered. This paper provides a review of some modulation formats suited for 5G, enriched by a comparative analysis of their performance in a cellular environment, and by a discussion on their interactions with specific 5G ingredients. The interaction with a massive MIMO system is also discussed by employing real channel measurements.
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.