Parametric Bilinear Iterative Generalized Approximate Message Passing Reception of FTN Multi-Carrier Signaling

Ma, Yunsi; Wu, Nan; Zhang, Andrew; Li, Bin; Hanzo, Lajos

doi:10.1109/tcomm.2021.3114873

“…In [172], multi-carrier FTN signaling across frequencyselective fading channels, a low-complexity Parametric Bilinear Generalized Message Passing (PBiGAMP)-based receiver is envisaged. In order to address the intrinsic ill-conditioning issue with MFTN signaling, we develop a frequency-domain received signal model that is segment-based and takes the form of a block circulant linear transition matrix.…”

Section: A Related Workmentioning

confidence: 99%

6G: Technology Evolution in Future Wireless Networks

Shafi,

Jha,

Jain

2024

IEEE Access

8

0

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The Sixth Generation (6G) Wireless Communication Network (WCN) is the successive provision to ameliorate the gain with ultra-low latency, and e xtremely high energy efficiency. The 6G WCN enables the specifications of artificial intelligence to optimize the services and capabilities. The vision of the 6G era is expected to address a seamless fusion of communication between the human, physical world, and digital world. The latest 6G WCN standard is a fundamental foundation and requires immense attention in the field of research. This paper presents the framework of 6G WCN with an illustration of its key technologies. The different technologies involved in 6G are well explained with the demonstration of the communication scenario such that the key performance indicators are improved with major differences. The primary contribution of this paper is the explanation of the 6G with the technologies that have a drastic impact on the characteristic aspects of a wireless communication network such as data rate, spectrum efficiency, energy efficiency, connection density, and reliability. All these technologies have the capability to revolutionize the subsequent WCN.

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“…The novel subcarrier pattern designs provided above are proposed from the point of view of activation patterns, which also could be used in other non-orthogonal systems such as multi-carrier faster-than-Nyquist (MFTN) [46]. Given that modulation schemes have an impact on index-modulated system performance, we also consider new pattern designs from the perspective of modulation schemes.…”

Section: B Proposed Designs In This Workmentioning

confidence: 99%

Index Modulation Pattern Design for Non-Orthogonal Multicarrier Signal Waveforms

Chen

¹

,

Xu

²

,

Darwazeh

³

2022

IEEE Trans. Wireless Commun.

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Spectral efficiency improvement is a key focus in most wireless communication systems and achieved by various means such as using large antenna arrays and/or advanced modulation schemes and signal formats. This work proposes to further improve spectral efficiency through combining nonorthogonal spectrally efficient frequency division multiplexing (SEFDM) systems with index modulation (IM), which can efficiently make use of the indices of activated subcarriers as communication information. Recent research has verified that IM may be used with SEFDM to alleviate inter-carrier interference (ICI) and improve error performance. This work proposes new SEFDM signal formats based on novel activation pattern designs, which limit the locations of activated subcarriers and enable a variable number of activated subcarriers in each SEFDM subblock. SEFDM-IM system designs are developed by jointly considering activation patterns, modulation schemes and signal waveform formats, with a set of solutions evaluated under different spectral efficiency scenarios. Detailed modelling of coded systems and simulation studies reveal that the proposed designs not only lead to better bit error rate (BER) but also lower peak-to-average power ratio (PAPR) and reduced computational complexity relative to other reported index-modulated systems.

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“…The novel subcarrier pattern designs provided above are proposed from the point of view of activation patterns, which also could be used in other non-orthogonal systems such as multi-carrier faster-than-Nyquist (MFTN) [45]. Given that modulation schemes have an impact on index-modulated system performance, we also consider new pattern designs from the perspective of modulation schemes.…”

Section: B Proposed Designs In This Workmentioning

confidence: 99%

Index Modulation Pattern Design for Non-Orthogonal Multicarrier Signal Waveforms

Chen¹,

Xu²,

Darwazeh³

2022

Preprint

0

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Spectral efficiency improvement is a key focus in most wireless communication systems and achieved by various means such as using large antenna arrays and/or advanced modulation schemes and signal formats. This work proposes to further improve spectral efficiency through combining nonorthogonal spectrally efficient frequency division multiplexing (SEFDM) systems with index modulation (IM), which can efficiently make use of the indices of activated subcarriers as communication information. Recent research has verified that IM may be used with SEFDM to alleviate inter-carrier interference (ICI) and improve error performance. This work proposes new SEFDM signal formats based on novel activation pattern designs, which limit the locations of activated subcarriers and enable a variable number of activated subcarriers in each SEFDM subblock. SEFDM-IM system designs are developed by jointly considering activation patterns, modulation schemes and signal waveform formats, with a set of solutions evaluated under different spectral efficiency scenarios. Detailed modelling of coded systems and simulation studies reveal that the proposed designs not only lead to better bit error rate (BER) but also lower peak-to-average power ratio (PAPR) and reduced computational complexity relative to other reported index-modulated systems.

show abstract

Parametric Bilinear Iterative Generalized Approximate Message Passing Reception of FTN Multi-Carrier Signaling

Cited by 14 publications

References 28 publications

6G: Technology Evolution in Future Wireless Networks

6G: Technology Evolution in Future Wireless Networks

Index Modulation Pattern Design for Non-Orthogonal Multicarrier Signal Waveforms

Index Modulation Pattern Design for Non-Orthogonal Multicarrier Signal Waveforms

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