Hardware Complexity Reduction in Universal Filtered Multicarrier Transmitter Implementation

Jafri, Atif Raza; Majid, Javaria; Shami, Muhammad Ali; Imran, Muhammad Ali; Najam-ul-Islam, Muhammad

doi:10.1109/access.2017.2728605

Cited by 23 publications

(32 citation statements)

References 10 publications

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“…At the end, all streams are added up to form final UFMC waveform. UFMC waveform is expressed using following equation [20]:…”

Section: System Modelmentioning

confidence: 99%

“…We have taken the simplest model of UFMC proposed in [19] as baseline for our work. For scheme in [19], reduced complexity solution for IFFT, filtering, and spectrum shifting are proposed in [20]. These simplifications are discussed briefly below whereas their actual hardware implementation with timing constraints is presented later in this paper.…”

Section: Architectural Choicesmentioning

confidence: 99%

“…On the other hand, if these coefficients are computed on the fly, the processing delay will occur. Hence, in [20] a simpler solution is proposed by simplifying the ratio of and in (2) as under…”

Section: Spectrum Shiftingmentioning

confidence: 99%

“…This modified approach reduces complexity to around 25 times of CP-OFDM by reducing size of IFFT and then implementing upsampling, filtering, and spectrum shifting. Further reduction of this model is proposed in [20] which will be used as baseline in this paper. However, the complexity reduction claims of above stated UFMC schemes are based on counting the arithmetic operations involved but not on actual hardware implementation.…”

Section: Introductionmentioning

confidence: 99%

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FPGA Implementation of UFMC Based Baseband Transmitter: Case Study for LTE 10MHz Channelization

Jafri

Majid

Zhang

et al. 2018

Wireless Communications and Mobile Computing

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Universal filtered multicarrier (UFMC) is a low complexity promising waveform that provides quasi-orthogonal property among subcarriers. In addition, it can achieve much better out-of-band emission performance than orthogonal frequency division multiplexing (OFDM) system. Authors have proposed a hardware platform to implement a UFMC transmitter in this paper. Highly reduced complexity schemes for IFFT, filtering, and spectrum shifting are realized on actual hardware. This helps to achieve overall architecture of the transmitter at the cost of minimal FPGA resource usage. Hence, the overall design uses only 1038 slice registers, 1154 slice LUTs, and 64 multipliers of Xilinx Virtex-7 XC7VX330t device. A throughput of 773.5 Msamples/sec at an operational frequency of 364 MHz is achieved. This throughput is adequate for processing 50 Physical Resource Blocks (PRB) of LTE 10 MHz channelization in required time. The presented architecture provides a latency of only 2% of one LTE 10MHz channelization symbol due to the implementation of pipelining at different levels. Although the presented hardware design in its current form meets LTE 10MHz channelization throughput requirements, further increase in throughput is possible due to the scalable nature of the architecture. To the best of our knowledge, this work is first ever FPGA solution for UFMC transmitter presented in the literature.

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“…At the end, all streams are added up to form final UFMC waveform. UFMC waveform is expressed using following equation [20]:…”

Section: System Modelmentioning

confidence: 99%

Section: Architectural Choicesmentioning

confidence: 99%

Section: Spectrum Shiftingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

FPGA Implementation of UFMC Based Baseband Transmitter: Case Study for LTE 10MHz Channelization

Jafri

Majid

Zhang

et al. 2018

Wireless Communications and Mobile Computing

Self Cite

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show abstract

“…As a direct result, modern studies have shown new candidate waveforms rapidly evolving from the traditional OFDM [7] to several filtered waveforms. For instance, the Filter Bank Multi-Carrier (FBMC) [8], the Universal Filter Multi-Carrier (UFMC) [9], the Filtered OFDM (F-OFDM) [10], and the Generalized Frequency Division Multiplexing (GFDM) [11]. As such, the new generation of mobile can be considered as a "filtration era".…”

Section: Introductionmentioning

confidence: 99%

New Multi-Carrier Candidate Waveform For the 5G Physical Layer of Wireless Mobile Networks

Kadhum

2019

2019 Wireless Days (WD)

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In this paper, a new multi-carrier candidate waveform for the future generation of mobile (5G) is introduced, explored and evaluated. The newly developed design of the Orthogonal Generalized Frequency division multiplexing (OGFDM) can improve the performance in terms of the channel capacity and Bit Error Rate (BER) for the wireless transmission of the multi-carrier system. In addition, compared to the most candidate waveform, Generalized Frequency Division Multiplexing (GFDM), the innovative multi-carrier OGFDM can double, boost and even maximize the capacity of wireless channel at the acceptable level of the BER. This is essentially achieved due to major adaptations have been made on the Filtration level, Oversampling level and Modulation level of the currently recommended GFDM. Thus, depending on the Digital Hilbert Filter (DHF), the presented solution can attain the orthogonality between the un-orthogonal filtered subcarriers of the multicarrier GFDM technique. Moreover, by utilizing an adjustable oversampling factor, the examined system can stay reliable even in the worst conditions of the wireless channel. Furthermore, employing the adaptive bit loading instead of the fixed modulation format, the announced waveform can reach the maximum rate of transmission with the venial limit of error. The main parameters of each promoted level are precisely specified in accordance with the optimum system performance. Besides, the different levels of the multi-carrier OGFDM are presented in the physical layer (PHY) of a wireless electrical back-to-back transceiver system. A MATLAB simulation was introduced to evaluate the system performance (BER & channel capacity) in presence of the Additive White Gaussian Noise (AWGN).

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Performance Analysis of UFMC System with Different Prototype Filters for 5G Communication

Maheswari¹,

Nagarajan²,

Banupriya³

2020

Proceedings of International Conference on Artificial Intelligence, Smart Grid and Smart City Applications

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Hardware Complexity Reduction in Universal Filtered Multicarrier Transmitter Implementation

Cited by 23 publications

References 10 publications

FPGA Implementation of UFMC Based Baseband Transmitter: Case Study for LTE 10MHz Channelization

FPGA Implementation of UFMC Based Baseband Transmitter: Case Study for LTE 10MHz Channelization

New Multi-Carrier Candidate Waveform For the 5G Physical Layer of Wireless Mobile Networks

Performance Analysis of UFMC System with Different Prototype Filters for 5G Communication

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