Cyclic Prefix-Based Universal Filtered Multicarrier System and Performance Analysis

Zhang, Lei; Xiao, Pei; Quddus, Atta Ul

doi:10.1109/lsp.2016.2590830

Cited by 37 publications

(27 citation statements)

References 12 publications

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“…The authors analyzed the conditions for interference-free one-tap equalization for an imperfect transceiver; then, the corresponding channel equalization algorithms were proposed and validated by simulations [22].…”

Section: Related Workmentioning

confidence: 99%

Interference cancelation scheme with variable bandwidth allocation for universal filtered multicarrier systems in 5G networks

Chen

Jiang

2018

J Wireless Com Network

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The universal filtered multicarrier (UFMC) is an appealing technique to eliminate out-of-band emission (OOBE) for fifth-generation (5G) networks. However, its signals that are modulated to the carriers, which are on the edges of one subband, are influenced by the filter. In this paper, an interference cancelation scheme is proposed to suppress the interference and to improve the multiuser system performance. Here, interference cancelation subcarriers are inserted on the edges to reduce the filter interference. This scheme ensures that the operating subregion or subband supports the variable bandwidth allocation to meet the requirements of 5G networks. Simulation results show that the bit error rate (BER) performance improves by 4 and 7 dB compared with that of the conventional UFMC when the corresponding Eb/N0 is 15 and 20 dB. Comparisons with both the standard OFDM and the GB OFDM are also reported. The results demonstrate that the proposed UFMC scheme outperforms the other two systems, especially compared with the GB OFDM system under the condition of the same spectral efficiency.

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Section: Related Workmentioning

confidence: 99%

Interference cancelation scheme with variable bandwidth allocation for universal filtered multicarrier systems in 5G networks

Chen

Jiang

2018

J Wireless Com Network

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“…Correspondingly, the multiplexing and de-multiplexing of sub-carriers can be simply implemented by using the inverse discrete cosine transform (IDCT) and DCT, instead of the inverse discrete Fourier transform (IDFT) pairs in orthogonal frequency division multiplexing (OFDM) [2], [3], [4] widely used in 4G systems and its variants proposed for 5G, such as generalized frequency division multiplexing (GFDM) [5], universal filtered multi-carrier (UFMC) [6], [7], filtered orthogonal frequency division multiplexing (F-OFDM) [8], [9] and filter bank multicarrier (FBMC) [10], [11], [12]. In [13], it is proved that the DCT-MCM is more robust than conventional OFDM schemes in terms of frequency offsets.…”

Section: Introductionmentioning

confidence: 99%

Efficient DCT-MCM detection for single and multi-antenna wireless systems

Xiao

Zhang

et al. 2017

2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Abstract-The discrete cosine transform (DCT) based multicarrier modulation (MCM) system is regarded as one of the promising transmission techniques for future wireless communications. By employing cosine basis as orthogonal functions for multiplexing each real-valued symbol with symbol period of T , it is able to maintain the subcarrier orthogonality while reducing frequency spacing to 1/(2T ) Hz, which is only half of that compared to discrete Fourier transform (DFT) based multicarrier systems. In this paper, following one of the effective transmission models by which zeros are inserted as guard sequence and the DCT operation at the receiver is replaced by DFT of double length, we reformulate and evaluate three classic detection methods by appropriately processing the post-DFT signals both for single antenna and multiple-input multipleoutput (MIMO) DCT-MCM systems. In all cases, we show that with our reformulated detection approaches, DCT-MCM schemes can outperform, in terms of error-rate, conventional OFDMbased systems.Index Terms-Discrete cosine transform (DCT), signal-to-noise ratio (SNR) analysis, multiple-input multiple-output (MIMO), frequency-selective channel, equalizer design.

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“…Orthogonal frequency division multiplexing (OFDM) [6] is NOT suitable for this MS system due to the high ISBI caused by its high out of band (OoB) emission level. Several new waveforms are proposed to address the problem, such as universal filtered multi-carrier (UFMC) [3], [7], [8], [9], [10], filtered OFDM (f-OFDM) [4], [11], filter bank multi-carrier (FBMC) [12], [13], [14] and generalized frequency division multiplexing (GFDM) [15], etc.…”

Section: Introductionmentioning

confidence: 99%

Single-rate and multi-rate multi-service systems for next generation and beyond communications

Zhang

Ijaz

Xiao

et al. 2016

2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Abstract-To flexibly support diverse communication requirements (e.g., throughput, latency, massive connection, etc.) for the next generation wireless communications, one viable solution is to divide the system bandwidth into several service subbands, each for a different type of service. In such a multi-service (MS) system, each service has its optimal frame structure while the services are isolated by subband filtering. In this paper, a framework for multi-service (MS) system is established based on subband filtered multi-carrier (SFMC) modulation. We consider both single-rate (SR) and multi-rate (MR) signal processing as two different MS-SFMC implementations, each having different performance and computational complexity. By comparison, the SR system outperforms the MR system in terms of performance while the MR system has a significantly reduced computational complexity than the SR system. Numerical results show the effectiveness of our analysis and the proposed systems. These proposed SR and MR MS-SFMC systems provide guidelines for next generation wireless system frame structure optimization and algorithm design.

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Cyclic Prefix-Based Universal Filtered Multicarrier System and Performance Analysis

Cited by 37 publications

References 12 publications

Interference cancelation scheme with variable bandwidth allocation for universal filtered multicarrier systems in 5G networks

Interference cancelation scheme with variable bandwidth allocation for universal filtered multicarrier systems in 5G networks

Efficient DCT-MCM detection for single and multi-antenna wireless systems

Single-rate and multi-rate multi-service systems for next generation and beyond communications

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