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Electronics
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Advanced Coding and Modulation Technologies for Future Communication Systems
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Advanced Coding and Modulation Technologies for Future Communication Systems

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 3644

Special Issue Editors

Prof. Dr. Lin Wang

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Guest Editor
Department of Information and Communication Engineering, School of Informatics, Xiamen University, Xiamen 361005, China
Interests: communication theory; information theory; lossy/lossless coding/decoding theory; joint source-channel coding/decoding; channel coding/decoding; modulation/demodulation; digital communications; signal processing (graph signal processing)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Pingping Chen

E-Mail Website
Guest Editor
College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China
Interests: wireless communication; signal processing; channel coding; network coding; AI intelligent communication
Dr. Qiwang Chen

E-Mail Website
Guest Editor
the Xiamen Key Laboratory of Mobile Multimedia Communications, School of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
Interests: Coded Modulation; joint source-channel coding/decoding; deep JSCC
Dr. Xiangming Cai

E-Mail Website
Guest Editor
Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
Interests: wireless communications; reconfigurable intelligent surfaces; chaotic communications; underwater acoustic communications

Special Issue Information

Dear Colleagues,

Amid the ongoing global deployment of fifth-generation networks, research endeavors have already begun to delineate the anticipated landscape of the sixth generation (6G). In pursuit of fulfilling the demands of emerging 6G applications, which necessitate high data rates, ultra reliability, low latency, and massive connectivity, comprehensive optimization of the physical layer (PHY) of the communication transmission link becomes imperative. However, in future communication systems, where the manipulation of both the transceiver and channel environment is feasible, there remain many open problems concerning the PHY when it comes to attaining better performance.

This Special Issue warmly welcomes pioneering contributions that revolve around advanced PHY technologies for future communication systems—especially novel coding and modulation technologies—and their applications. Topics of interest include, but are not limited to:

  • Lossy and lossless source coding;
  • Channel coding and decoding;
  • Joint source and channel coding;
  • Coded modulation technology;
  • Coherent and non-coherent modulation;
  • Multiple access and multiple antenna technology;
  • Millimeter-wave and terahertz channel modeling;
  • Channel estimation and equalization;
  • Artificial intelligence at the PHY;
  • Reconfigurable intelligent surface at the PHY;
  • Integrated sensing and communications at the PHY.

Prof. Dr. Lin Wang
Prof. Dr. Pingping Chen
Dr. Qiwang Chen
Dr. Xiangming Cai
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (4 papers)

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Research

23 pages, 1984 KiB  
Article
Labeling-Based Recipient Identification with Low-Order Modulation
by Maciej Krasicki
Electronics 2024, 13(2), 425; https://doi.org/10.3390/electronics13020425 - 19 Jan 2024
Viewed by 467
Abstract
Labeling-Based Recipient Identification (LABRID) brings the possibility of representing the destination station address in a Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) system by a signal labeling rule. Low-order modulations, such as BPSK or QPSK, pose a general problem for BICM-ID due to [...] Read more.
Labeling-Based Recipient Identification (LABRID) brings the possibility of representing the destination station address in a Bit-Interleaved Coded Modulation with Iterative Decoding (BICM-ID) system by a signal labeling rule. Low-order modulations, such as BPSK or QPSK, pose a general problem for BICM-ID due to a limited convergence of iterative decoding. In the context of LABRID, they have one more drawback—a small number of different labeling rules in general; the number of the optimal ones, which exhibit the maximal asymptotic coding gain, is reduced even further. Meanwhile, LABRID needs a sizable collection of different optimal labeling rules to serve many users in large wireless networks. In this paper, the author suggests the use of hypercube BPSK or QPSK labeling to overcome all these challenges. By means of the Reactive Tabu Search (RTS) algorithm, more than 1500 equivalent optimal hypercube labeling rules are found. Analytical error bounds of the system are developed and supported by simulation experiments. Then, the focus is moved to the criterion to determine the frame destination at the LABRID receiver; a simple threshold-based method is proposed to keep the incorrect decision probability below 10−5. Finally, it is shown that LABRID outperforms a reference BICM-ID system in terms of computational complexity. Full article
(This article belongs to the Special Issue Advanced Coding and Modulation Technologies for Future Communication Systems)
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17 pages, 723 KiB  
Article
Raptor-like Coded Broadcasting for Efficient V2X Communications
by Zuolin Jin, Huan Li, Jingxuan Huang, Xinyi Wang, Zhiyuan Tan, Pengpeng Dong and Zesong Fei
Electronics 2023, 12(18), 3951; https://doi.org/10.3390/electronics12183951 - 19 Sep 2023
Viewed by 662
Abstract
Broadcasting is a critical feature in V2X communication, allowing for the simultaneous dissemination of safety-critical messages to all nearby vehicles. However, the requirement for low latency in information dissemination and the need for reliable and efficient data transmission pose significant challenges to broadcasting [...] Read more.
Broadcasting is a critical feature in V2X communication, allowing for the simultaneous dissemination of safety-critical messages to all nearby vehicles. However, the requirement for low latency in information dissemination and the need for reliable and efficient data transmission pose significant challenges to broadcasting in V2X communication systems. In this paper, we present a novel raptor-like coded broadcasting (RLCB) scheme for low-latency V2X communications. Firstly, we introduce feedback into a concatenated fountain code, and adjust its precoding and coding structure to achieve effective data deliverance under a limited number of retransmissions for low-latency transmission. Then, based on the raptor-like encoding and decoding structure, we propose a mutual exclusion-based network encoding (MENC) algorithm to enable retransmission in broadcasting scenarios. We also conduct a complexity analysis on the encoding and decoding process of our proposed scheme. Numerical results demonstrate the superior performance of our proposed scheme in reducing the packet error rate (PER) and improving spectral efficiency compared to the R10 code and hybrid automatic repeat request (HARQ) scheme. Full article
(This article belongs to the Special Issue Advanced Coding and Modulation Technologies for Future Communication Systems)
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14 pages, 1373 KiB  
Article
An In-Phase/Quadrature Index Modulation-Aided Spread Spectrum Communication System for Underwater Acoustic Communication
by Yunlong Wei, Lingmiao Quan, Weikai Xu, Deqing Wang and Lin Wang
Electronics 2023, 12(13), 2919; https://doi.org/10.3390/electronics12132919 - 03 Jul 2023
Viewed by 814
Abstract
In a multiple-sequences-spread-spectrum (MSSS) communication system, the transmitted signal is made up of superimposed cyclic shift sequences, each sequence carrying a symbol, so the data rate is inceased. In this context, we propose an in-phase/quadrature index modulation-aided MSSS system (MSSS-I/Q-IM), which achieves higher [...] Read more.
In a multiple-sequences-spread-spectrum (MSSS) communication system, the transmitted signal is made up of superimposed cyclic shift sequences, each sequence carrying a symbol, so the data rate is inceased. In this context, we propose an in-phase/quadrature index modulation-aided MSSS system (MSSS-I/Q-IM), which achieves higher data rate and better bit-error-rate (BER) performance. The new system maps the additional bits to the cyclic shift length of the superimposed sequences of I/Q branches. The sequences in two branches carry the real and imaginary parts of the M-ary phase-shift-keying (MPSK) symbols, respectively. We derive the theoretical BER of the MSSS-I/Q-IM system over an additive white Gaussian noise (AWGN) channel. Then, the simulation experiments of the proposed system and MSSS system over an underwater acoustic channel are analyzed and compared. Finally, field experiments are carried out in the pool environment. The experiment results show that the proposed scheme can achieve higher data rate or better BER performance via adjusting the IM parameter. This is important for the time-variant underwater acoustic transmission environments. Full article
(This article belongs to the Special Issue Advanced Coding and Modulation Technologies for Future Communication Systems)
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16 pages, 528 KiB  
Article
Rate-Compatible Protograph LDPC Codes for Source Coding in Joint Source—Channel Coded Modulation Systems
by Chen Chen, Sanya Liu, Qiwang Chen and Zhiping Xu
Electronics 2023, 12(12), 2610; https://doi.org/10.3390/electronics12122610 - 09 Jun 2023
Viewed by 804
Abstract
Using the source residual redundancy in a joint source and channel coded modulation (JSCCM) system to achieve a shaping gain has proven to be a good solution for probabilistic amplitude shaping. In a JSCCM system, rate-compatible source codes are essential for adapting to [...] Read more.
Using the source residual redundancy in a joint source and channel coded modulation (JSCCM) system to achieve a shaping gain has proven to be a good solution for probabilistic amplitude shaping. In a JSCCM system, rate-compatible source codes are essential for adapting to dynamically changing source probabilities. However, conventional rate-compatible source codes are not appropriate for JSCCM systems, since they may yield a loss in the shaping gain. Moreover, a code design that depends solely on the source decoding threshold appears to be ill suited, thus complicating the search for good source codes. In this paper, we propose a rate-compatible family of source codes for JSCCM systems based on an achievable system rate analysis and the source protograph extrinsic information transfer (PEXIT) algorithm. The proposed codes not only have good source decoding thresholds but also obtain shaping gains over the whole considered range of source probabilities. Numerical results show that the proposed rate-compatible family of source codes can significantly improve the bit-error-rate (BER) performance of the JSCCM system. Full article
(This article belongs to the Special Issue Advanced Coding and Modulation Technologies for Future Communication Systems)
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