Article
Chemistry, Analytical
Xiao Han, Ivan B. Djordjevic
Summary: The growing data demands are driving researchers to focus more on spectrally efficient modulation formats. In this paper, a 4D modulation format based on Slepian sequences is implemented and experimentally studied using LDPC coding. The results show that error-free transmission is achievable without the use of complicated DSP.
Article
Telecommunications
Yang Liu, Huiqin Du, Shancheng Zhao, Jinming Wen
Summary: This letter aims to improve the performance of LDPC coded spatial modulation by introducing delayed bit-interleaved coded spatial modulation (DBICSM). The LDPC-DBICSM encoding structure is presented, along with a non-iterative decoder that works on two blocks of received sequences for LDPC-BICSM. An estimated lower bound on the performance of LDPC-DBICSM is also provided. Extensive simulation results demonstrate the performance advantages of LDPC-DBICSM compared to LDPC-BICSM, with a performance gain of about 1.25 dB achieved at a BER of 10-8.
IEEE COMMUNICATIONS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Chen Chen, Qiwang Chen, Lin Wang, Yu-Cheng He, Yifan Chen
Summary: In this paper, a novel PAS strategy is proposed for a joint source and channel coded modulation system, where residual source redundancy is utilized to achieve shaping and coding gains. The probability distribution of modulated symbols can be optimized under an appropriate interleaver design by controlling the residual source redundancy through the selection of row weight distribution for source code. Jointly designing source and channel codes also enables the exploitation of residual source redundancy to achieve coding gain.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Zhe Wang, Junwen Zhang, Zhixue He, Peng Zou, Nan Chi
Summary: The paper proposes the SIM-SCAP modulation scheme to enhance the spectral efficiency and energy efficiency in bandlimited visible light communication systems, achieving around 30% SE enhancement compared to existing schemes. ICI mitigation further improves the throughput performance of the SIM-SCAP scheme, making it a promising candidate in designing bandlimited multi-user access optical communication systems.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Telecommunications
Mingyang Zhu, Ming Jiang, Chunming Zhao
Summary: This letter presents a low-complexity error floors estimation method for bit-interleaved coded modulation systems, using surrogate bit-channels and importance sampling method to evaluate error floors. The method is suitable for various types of modulators and interleavers.
IEEE COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Yu Bai, Bo Liu, Xiangyu Wu, Rahat Ullah, Jianxin Ren, Yaya Mao, Shuaidong Chen, Jinnan Zhang, Xiumin Song, Yongfeng Wu, Lilong Zhao, Tingting Sun
Summary: This paper proposes an encrypted three-dimensional trellis-coded modulation based on mapping by set-partitioning of 3D constellation, for highly reliable and secure short-reach transmission. By using a four-dimensional fractional-order chaotic system, the encoding encryption and constellation rotation are implemented, which results in higher coding gain and chaotic encryption.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Xu Yan, Jie Ma, Jianfei Liu, Jia Lu, Xiangye Zeng, Mingming Luo
Summary: This paper presents a recently proposed novel geometric shaping four-dimensional (GS-4D) modulation format based on quadrant multiplexing and evaluates its performance in terms of signal transmission. GS-4D achieves a higher generalized mutual information (GMI) gain compared to polarization-multiplexed 16-ary quadrature amplitude modulation (PM-16QAM) at low signal-to-noise ratio (SNR) regions. Set partitioning (SP) and an improved particle swarm optimization (PSO) algorithm are proposed to reduce complexity and optimize performance. Experimental results show that GS-4D with SP-PSO outperforms PM-16QAM in terms of optical SNR gain and bit error ratio (BER) reduction.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Yihuan Liao, Min Qiu, Jinhong Yuan
Summary: This paper investigates the design and performance of delayed bit-interleaved coded modulation (DBICM) with low-density parity-check (LDPC) codes, optimizing delay schemes to improve spectrum efficiency of DBICM. The study reveals that improvements in capacity due to delay coded bits mapping to real and imaginary parts of transmitted symbols are independent, and pairs of delay schemes with equal bit-channel capacity lead to equivalent DBICM capacity.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Optics
Zhongyang Xu, Fengxi Yu, Bowen Qiu, Yawei Zhang, Yu Xiang, Shilong Pan
Summary: The paper introduces a coherent RMCW LiDAR based on phase-coded subcarrier modulation, mitigating the impacts of internal reflection and optical DFS, while suppressing background noise by averaging over successive measurement spots.
Article
Computer Science, Information Systems
Chen Chen, Sanya Liu, Qiwang Chen, Zhiping Xu
Summary: Using source residual redundancy in JSCCM system for shaping gain is proven to be a good solution for probabilistic amplitude shaping. Conventional rate-compatible source codes are not suitable for JSCCM systems as they may result in loss of shaping gain. This paper proposes a rate-compatible family of source codes based on system rate analysis and source protograph extrinsic information transfer algorithm, which not only have good source decoding thresholds but also achieve shaping gains over the entire range of source probabilities.
Article
Telecommunications
Yihuan Liao, Min Qiu, Jinhong Yuan
Summary: In this work, a novel windowed decoding algorithm for DBICM is proposed to improve the detection on all sub-blocks using extrinsic information, outperforming the original decoding based on numerical results.
IEEE COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Weimin Kang
Summary: In this paper, a non-binary LDPC-coded low complexity PDM-PS scheme for high-order modulation is proposed, which can achieve shaping gain compared to conventional non-binary LDPC-coded QAM schemes. Theoretical and simulated analyses demonstrate that the proposed scheme provides energy gain and acceptable error performance loss. Moreover, the proposed scheme reduces computational complexity by 33.1% and 49.7% under 64QAM and 256QAM, respectively, when compared with conventional non-binary LDPC-coded PS QAM schemes.
DIGITAL SIGNAL PROCESSING
(2023)
Article
Engineering, Electrical & Electronic
Peyman Neshaastegaran, Amir H. Banihashemi, Ramy H. Gohary
Summary: This paper proposes a novel error floor estimation methodology for high-order pulse amplitude modulation and quadrature amplitude modulation LDPC coded systems using mean-shift importance sampling. The method first identifies trapping sets through a graphical approach, then employs an analytical method to determine potentially dominant trapping sets that contribute more to the error floor. Finally, a new methodology categorizes the potentially dominant trapping sets into equivalence classes for error rate estimation.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Optics
Jinnan Zhang, Bo Liu, Jianxin Ren, Yaya Mao, Shuaidong Chen, Rong Tang, Xiumin Song, Yu Bai, Xiangyu Wu, Feng Wang, Yongfeng Wu, Lilong Zhao, Tingting Sun, Rahat Ullah
Summary: This paper proposes a high-security multi-level constellation shaping trellis-coded modulation method based on clustering mapping rules, suitable for passive optical networks using three-dimensional carrier-less amplitude and phase modulation. The method combines the TCM mapping process with constellation shaping to achieve better constellation shaping gain while expanding the coding gain of the TCM. Experimental results show that the scheme has reliable security performance while improving the short-reach transmission capacity.
Article
Computer Science, Information Systems
Suihua Cai, Shancheng Zhao, Xiao Ma
Summary: In this paper, a method is proposed to handle the transmission of extra bits over an existing coded payload link without any extra transmission energy or bandwidth. The concept of accessible capacity is introduced to determine the maximum reliable rate of superposition transmission of extra bits. Different scenarios for different channel and payload code types are considered.
IEEE TRANSACTIONS ON INFORMATION THEORY
(2022)
Article
Engineering, Electrical & Electronic
H. Zhang, A. Turukhin, O. V. Sinkin, W. Patterson, H. G. Batshon, Y. Sun, C. R. Davidson, M. Mazurczyk, G. Mohs, D. Foursa, A. Pilipetskii
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2016)
Article
Engineering, Electrical & Electronic
Alexey V. Turukhin, Oleg V. Sinkin, Hussam G. Batshon, Yu Sun, Matt Mazurczyk, Carl R. Davidson, Jin-Xing Cai, Maxim A. Bolshtyansky, Dmitri G. Foursa, Alexei N. Pilipetskii
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2017)
Article
Engineering, Electrical & Electronic
Oleg V. Sinkin, Alexey V. Turukhin, Yu Sun, Hussam G. Batshon, Matt V. Mazurczyk, Carl R. Davidson, Jin-Xing Cai, Will W. Patterson, Maxim A. Bolshtyansky, Dmitri G. Foursa, Alexei N. Pilipetskii
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Jin-Xing Cai, Hussam G. Batshon, Matthew V. Mazurczyk, Oleg V. Sinkin, Ding Wang, Milen Paskov, Carl R. Davidson, William W. Patterson, Alexey Turukhin, Maxim A. Bolshtyansky, Dmitri G. Foursa
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2018)
Article
Engineering, Electrical & Electronic
Jin-Xing Cai, Hussam G. Batshon, Matthew Vincent Mazurczyk, Oleg V. Sinkin, Ding Wang, Milen Paskov, William W. Patterson, Carl R. Davidson, Patrick C. Corbett, Gregory M. Wolter, Timothy E. Hammon, Maxim A. Bolshtyansky, Dmitri G. Foursa, Alexei N. Pilipetskii
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
A. Turukhin, M. Paskov, M. V. Mazurczyk, W. W. Patterson, H. G. Batshon, O. V. Sinkin, M. A. Bolshtyansky, B. Nyman, D. G. Foursa, A. N. Pilipetskii
2019 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Hussam G. Batshon
2019 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2019)
Proceedings Paper
Optics
Hussam G. Batshon
NEXT-GENERATION OPTICAL COMMUNICATION: COMPONENTS, SUB-SYSTEMS, AND SYSTEMS VII
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
A. V. Turukhin, O. V. Sinkin, H. G. Batshon, M. Mazurczyk, M. A. Bolshtyansky, D. G. Foursa, A. N. Pilipetskii
2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
J. -X. Cai, Y. Hu, A. Turukhin, M. V. Mazurczyk, M. Paskov, H. G. Batshon, C. R. Davidson, M. Bolshtyansky, D. G. Foursa
2018 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC)
(2018)
Proceedings Paper
Optics
M. Mazurczyk, J-X Cai, H. G. Batshon, M. Paskov, O. Sinkin, D. Wang, W. Patterson, C. R. Davidson, P. Corbett, G. Wolter, T. Hammon, M. A. Bolshtyansky, D. G. Foursa
43RD EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC 2017)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
J. -X. Cai, H. G. Batshon, M. V. Mazurczyk, O. V. Sinkin, D. Wang, M. Paskov, W. Patterson, C. R. Davidson, P. Corbett, G. Wolter, T. Hammon, M. Bolshtyansky, D. Foursa, A. Pilipetskii
2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
M. Mazurczyk, J. -X. Cai, H. G. Batshon, Y. Sun, O. V. Sinkin, M. Bolshtyansky, D. G. Foursa, A. Pilipetskii
2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
A. Turukhin, O. V. Sinkin, H. G. Batshon, H. Zhang, Y. Sun, M. Mazurczyk, C. R. Davidson, J. -X. Cai, M. A. Bolshtyansky, D. G. Foursa, A. Pilipetskii
2016 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC)
(2016)
Proceedings Paper
Engineering, Electrical & Electronic
Hussam G. Batshon, Hongbin Zhang
2015 OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC)
(2015)
