Air‐interface virtualization using filter bank multicarrier and orthogonal frequency division multiplexing configurations

2020 ◽  
Author(s):  
Malik Muhammad Saad ◽  
Farrukh Aziz Bhatti ◽  
Adnan Zafar ◽  
Sobia Jangsher ◽  
Dongkyun Kim ◽  
...  
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Air Interface ◽  
Filter Bank Multicarrier

scholarly journals Hardware Prototyping and Modelling of Prototype Filter for FBMC

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Bircan Çalişir ◽  
Ayhan Akbal
Keyword(s):  
Communication Networks ◽  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Filter Design ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Mobile Telecommunication ◽  
Guard Band ◽  
Filter Bank Multicarrier ◽  
Band Limited

Filter bank multicarrier (FBMC) is one of the effective candidates for the fifth generation of wireless communication networks. 5G (5th-generation wireless systems) is accepted as the next major stage of mobile telecommunication technology. The extent of 5G will be expanded mobile broadband services to next-generation automobiles and connected machines. In particular, filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is determined as the future generation 5G air interface by researchers recently. Filter bank multicarrier (FBMC) is admitted as one of the alternative technologies for multicarrier modulation. Compared to orthogonal frequency-division multiplexing (OFDM), FBMC has better spectrum shape and supports mobility. Therefore, efficient hardware implementations have highly interested researchers. Cyclic prefix (CP) and guard band are used for orthogonal frequency-division multiplexing (OFDM) and this causes loss of spectral efficiency, but FBMC applications do not need CP and guard band. Due to the fact that FBMC has offset QAM (OQAM) and band-limited filtering features on each subcarrier, the need for CP and guard band is eliminated. In this paper, novel pipelined hardware architecture of the filter design of FBMC/OQAM modulator has been proposed.

scholarly journals Overview and Complexity Evaluation of FBMC Transmitter Architectures

2018 ◽  
pp. 10-15
Author(s):  
Husam Al-Amaireh ◽  
Zsolt Kollár
Keyword(s):  
Computational Complexity ◽  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Key Factors ◽  
Main Design ◽  
Ofdm Modulation ◽  
Filter Bank Multicarrier ◽  
Simulation Results

Computational complexity is one of the key factors considered for evaluating transmitter performance of future 5G applications. In this contribution we have chosen Filter Bank MultiCarrier (FBMC) as it is the most possible candidate to replace/coexist with the Orthogonal Frequency Division Multiplexing (OFDM) modulation. In the literature two main design approaches can be found for FBMC: Frequency Spreading (FS) and PolyPhase Network (PPN). From these two structures numerous schemes were derived. These schemes are studied and the complexity (real multiplications and additions) for each scheme is compared. Based on the complexity calculations, the simulation results show that PPN has a better complexity performance compared with FS. Also, the alternative PPN schemes have significant improvement in complexity compared to the standard PPN.

scholarly journals Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
David Garcia-Roger ◽  
Sandra Roger ◽  
Josue Flores de Valgas ◽  
Jose F. Monserrat
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Hardware Implementation ◽  
Complexity Analysis ◽  
Model Complexity ◽  
Component Reuse ◽  
Fifth Generation ◽  
Air Interface ◽  
Filter Bank Multicarrier ◽  
Configurable Hardware

The coexistence of multiple air interface variants in the upcoming fifth generation (5G) wireless technology remains a matter of ongoing discussion. This paper focuses on the physical layer of the 5G air interface and provides a harmonization solution for the joint implementation of several multicarrier waveform candidates. Waveforms based either on cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) or on filter bank multicarrier (FBMC) are first presented through a harmonized system model. Complexity comparisons among five different waveforms are provided. Then, the complexity of a proposed configurable hardware implementation setup for waveform transmission and reception is evaluated. As a result, the harmonized transmitter and receiver exhibit 25–40% and 15–25% less complexity in floating-point operations, respectively, in comparison to two standalone implementations of the most complex waveform instances of the CP-OFDM and FBMC families. This highlights the similarities between both families and illustrates the component reuse advantages associated with the proposed harmonized solution.

scholarly journals A Unified Spectrum Formulation for OFDM, FBMC, and F-OFDM

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1285
Author(s):  
Xianzhen Yang ◽  
Siyuan Yan ◽  
Xiao Li ◽  
Fu Li
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Spectrum Efficiency ◽  
Future Generations ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Wireless Technologies

Although orthogonal frequency division multiplexing (OFDM) has been standardized for 5G, filter bank multi-carrier (FBMC) and filtered orthogonal frequency division multiplexing (F-OFDM) remain competitive as candidates for future generations of wireless technologies beyond 5G, due to their reduced spectrum leakage and thus enhanced spectrum efficiency. In this article, we developed a unified spectrum expression for OFDM, FBMC, and F-OFDM, which provides comparative insights into those techniques. A representative sideband quantification is included at the end of this article.

scholarly journals APR Reduction Technique based on OFDM Pilot Filter Bank Limiting for Satellite Mobile Communications

2018 ◽  
Vol 246 ◽  
pp. 03002
Author(s):  
Tianfang Dai
Keyword(s):  
Mobile Communications ◽  
Bit Error Rate ◽  
Error Rate ◽  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Hardware Implementation ◽  
Reduction Technique ◽  
Papr Reduction ◽  
Frequency Division Multiplexing ◽  
Frequency Division

Combined with OFDM (Orthogonal Frequency Division Multiplexing), satellite mobile communications will effectively achieve on-demand communication in areas with an ultra-low density of users. With OFDM multiple access optimization, the bandwidth utilization efficiency can be increased by 5 to 10 times. However, satellites are power-constrained systems, so higher PAPR requires greater power backoff, resulting in a decline in satellite transmission capacity. To use OFDM technology in satellites, there are problems such as reduced transmission capacity resulted from high PAPR, complication of lowering PAPR, and difficulty in hardware implementation. In order to deal with the problem of high bit error rate and hardware implementation difficulties in PAPR reduction technique of non-orthogonal frequency division multiplexing, this paper proposes a limiting PAPR reduction technique with OFDM pilot filter banks for satellite mobile communications. Firstly, the applicability of OFDM in satellite mobile communications is analyzed, and the influence of high PAPR on satellite power utilization and the influence of frequency shift sensitivity on inter-satellite communication interference are obtained. Then design the PAPR reduction technique based on the pilot filter bank. By setting the tunable filter bank to the pilot, the sideband power suppression in the OFDM frequency domain is realized, and the PAPR of the OFDM signal is reduced. Finally, the experimental results show that the PAPR performance is improved by 3dB without reducing the bit error rate.

scholarly journals FILTER BANK MULTICARRIER (FBMC) UNTUK 5G

2021 ◽  
Vol 13 (2) ◽  
pp. 135-142
Author(s):  
Gradiyanto Jason ◽  
Theresia Ghozali ◽  
Kumala Indriati
Keyword(s):  
Amplitude Modulation ◽  
Orthogonal Frequency Division Multiplexing ◽  
Dynamic Spectrum Access ◽  
Filter Bank ◽  
Quadrature Amplitude Modulation ◽  
Cyclic Prefix ◽  
Intercarrier Interference ◽  
Frequency Division ◽  
Spectrum Access ◽  
Filter Bank Multicarrier

Saat ini, teknologi pada bidang telekomunikasi berkembang dengan pesat. Pengguna telekomunikasi membutuhkan teknologi komunikasi yang cepat dengan bandwidth yang lebih lebar. Oleh karena itu dikembangkanlah Filter Bank Multi Carrier/Offset Quadrature Amplitude Modulation yang merupakan teknologi kandidat modulasi yang akan digunakan pada 5G. Filter Bank Multi Carrier/Offset Quadrature Amplitude Modulation (FMBC/OQAM) merupakan perkembangan dari Orthogonal Frequency Division Multiplexing (OFDM) yang dimodifikasi dengan menggunakan filter untuk mengurangi noise. OFDM menggunakan teknik multiplexing yang membagi bandwith menjadi beberapa frekuensi sub-carrier. Tetapi OFDM memiliki kelemahan yaitu memerlukan Cyclic Prefix (CP) untuk mengatasi Intersymbol Interference (ISI) serta Intercarrier Interference (ICI). Dengan menggunakan Filter berdasarkan Lembaga Physical layer for dynamic spectrum access and cognitive radio (PHYDYAS)  ,lebar bandwith yang bertambah akibat Cyclic prefix  akan dapat dikurangi Hasil yang dicapai dalam penelitian ini adalah  FBMC berhasil diterapkan  dan data yang dikirim sama dengan data yang diterima.

scholarly journals PERFORMANCE EVALUATION OF FILTER BANK MULTI-CARRIER MODULATION IN MULTIPATH FADING CHANNELS

2021 ◽  
Vol 1 (1) ◽  
pp. 1-10
Author(s):  
Ali A. Abdulhussein ◽  
Hikmat N. Abdullah
Keyword(s):  
Performance Evaluation ◽  
Fading Channels ◽  
Orthogonal Frequency Division Multiplexing ◽  
Filter Bank ◽  
Multipath Fading ◽  
Symbol Error Rate ◽  
Frequency Division Multiplexing ◽  
Frequency Division ◽  
Multipath Fading Channels ◽  
5G Technologies

Filter Bank Multi-Carrier (FBMC) modulation is one of the most significant enablers for future 5G technologies. It is a modulation technique for resolving inter-carrier and inter-symbol interference using two possible methods: Frequency Spreading (FS) and Poly Phase (PP) implementation. Cyclic prefixes are used in OFDM for signal robustness, but they have some disadvantages in orthogonal frequency division multiplexing. FBMC is used to solve the disadvantages of OFDM and save a bandwidth.  In this paper, performance comparisons in terms of symbol error rate between OFDM and FBMC systems in AWGN and multipath fading channels are presented. The obtained results show that FBMC over performs OFDM in multipath fading channels and the improvement margin is increased as the number of subcarriers decreased.

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