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How Can Optical Communications Shape the Future of Deep Space Communications? A Survey

IEEE COMMUNICATIONS SURVEYS AND TUTORIALS 2025年第1期27卷 725-747页

作者： Karmous, Sarah Adem, Nadia Atiquzzaman, Mohammed Samarakoon, Sumudu Univ Tripoli Dept Elect & Elect Engn Tripoli Libya Libyan Author Sci Res Tripoli Libya Univ Oulu Fac Informat Technol & Elect Engn Oulu 90570 Finland Univ Oklahoma Sch Comp Sci Norman OK 73019 USA Univ Oulu Fac Informat Technol & Elect Engn Oulu 90570 Finland

With a large number of deep space (DS) missions anticipated by the end of this decade, reliable and high-capacity DS communications are needed more than ever. Nevertheless, existing technologies are far from meeting such a goal. Improving current systems does not only require engineering leadership, but also, very crucially, investigating potential technologies that overcome the unique challenges of ultra-long DS links. To the best of our knowledge, there has not been any comprehensive surveys of DS communications technologies over the last decade. Free space optical (FSO) is an emerging DS technology, proven to acquire lower communications systems size weight and power (SWaP) and achieve a very high capacity compared to its counterpart radio frequency (RF), the currently used DS technology. In this survey, we discuss the pros and cons of deep space optical communications (DSOC) and review their physical and networking characteristics. Furthermore, we provide, for the first time, thoughtful discussions about implementing orbital angular momentum (OAM) and quantum communications (QC) for DS. We elaborate on how these technologies among other field advances including interplanetary network (IPN) and RF/FSO systems improve reliability, capacity, and security. This paper provides a holistic survey of DSOC technologies gathering 247 fragmented pieces of literature and including novel perspectives aiming to set the stage for more developments in the field.

关键词： delay tolerant networking (DTN) detection technologies Deep space optical communications (DSOC) delay tolerant networking (DTN) link capacity link capacity modulation and coding schemes modulation and coding schemes modulation and coding schemes inter- planetary network (IPN) inter- planetary network (IPN) inter- planetary network (IPN) inter- planetary network (IPN) inter- planetary network (IPN) networking protocols networking protocols modulation and coding schemes quantum communications (QC) quantum communications (QC) radio frequency (RF)/free space optical (FSO) systems radio frequency (RF)/free space optical (FSO) systems radio frequency (RF)/free space optical (FSO) systems orbital angular momen- tum (OAM) orbital angular momen- tum (OAM) orbital angular momen- tum (OAM) orbital angular momen- tum (OAM) orbital angular momen- tum (OAM) quantum communications (QC) radio frequency (RF)/free space optical (FSO) systems

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Turning Adversity Into Advantage: Robust MCS Selection Utilizing the Uncertainty of Channel Prediction Neural Networks

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IEEE WIRELESS COMMUNICATIONS LETTERS 2024年第10期13卷 2632-2636页

作者： Li, Yangyang Xu, Yuhua Li, Guoxin Wang, Ximing Xu, Yifan Liu, Songyi Yue, Lei Army Engn Univ PLA Coll Commun Engn Nanjing 210000 Peoples R China Natl Univ Def Technol Coll Informat & Commun Wuhan 430010 Peoples R China

In wireless communication systems, the selection of suitable modulation and/or coding schemes (MCS) based on predicted channel quality is vital. However, the dynamic nature of wireless channels poses a challenge, leading to persistent inaccuracies in prediction. This letter tackles this challenge by introducing a robust communication approach for MCS selection, rooted in new paradigm of prediction uncertainty quantification. The proposed method involves establishing an uncertainty pool to quantify potential prediction errors. This approach enables the assessment of the accuracy of predictions, facilitating the informed selection of MCSs. Through simulations utilizing real-world data, the integration of our proposed design into various channel prediction neural networks enhances the performance of MCS selection. The simulations show our design enhances communication robustness without compromising throughput. The enhancement of up to 53% in communication success rates, with an average improvement of around 15%.

关键词： Uncertainty Neural networks Time series analysis modulation Accuracy Bit error rate Receivers Robust communication modulation and coding schemes prediction uncertainty

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Relay-based IEEE 802.11ah network: A Smart City Solution

Relay-based IEEE 802.11ah network: A Smart City Solution

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Conference on Cloudification of the Internet of Things (CIoT)

作者： Ahmed, N. Hussain, Md. I. North Eastern Hill Univ Dept Informat Technol Shillong Meghalaya India

ISBN: (纸本)9781509049608

IEEE 802.11ah is proven to be a suitable communication standard for Smart City projects. However, due to the absence of Restricted Access Window (RAW) size adjustment and proper relay node solution, it fails to optimally utilize the resources in heterogeneous networks. In this paper, we propose a method to estimate the RAW size based on traffic loads and provide Relay node support for stations to use different modulation and coding schemes (MCSs). The Relay nodes dynamically allocate bandwidth to stations using different MCSs in different relay groups. The proposed scheme is seamlessly assimilated into 802.11ah which shows significant performance improvement in terms of throughput and delay.

关键词： Smart City Internet of Things 802.11ah modulation and coding schemes

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High-Throughput Covert Channels in Adaptive Rate Wireless Communication Systems 18

High-Throughput Covert Channels in Adaptive Rate Wireless Co...

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18th Annual International Conference on Electronics, Information, and Communication (ICEIC)

作者： Harley, Peter M. B. Tummala, Murali McEachen, John C. Naval Postgrad Sch Dept Elect & Comp Engn Monterey CA 93943 USA

ISBN: (纸本)9788995004449

In this paper, we outline a novel, forward error correction-based information hiding technique for adaptive rate wireless communication systems. Specifically, we propose leveraging the functionality of wireless local area network modulation and coding schemes (MCS) and link adaptation mechanisms to significantly increase covert channel throughput. After describing our generalized information hiding model, we detail implementation of this technique within the IEEE 802.11ad, directional multi-Gigabit standard. Simulation results demonstrate the potential of the proposed techniques to develop reliable, high-throughput covert channels under multiple MCS rates and embedding techniques. Covert channel performance is evaluated in terms of the observed packet error ratio of the underlying communication system as well as the bit error ratio of the hidden data.

关键词： Covert channels information hiding forward error correction modulation and coding schemes link adaptation IEEE 802.11ad WLAN directional multi-Gigabit (DMG) low-density parity-check codes

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Joint media-channel aware unequal error protection for wireless scalable video streaming

Joint media-channel aware unequal error protection for wirel...

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33rd IEEE International Conference on Acoustics, Speech and Signal Processing

作者： Mansour, Hassan Nasiopoulos, Panos Krishnamurthy, Vikram Univ British Columbia Dept Elect & Comp Engn Vancouver BC V5Z 1M9 Canada

ISBN: (纸本)9781424414833

In this paper, we propose a joint source-channel unequal error protection scheme for scalable video streaming over capacity constrained high speed packet access (HSPA) networks. Conventional link adaptation schemes in HSPA networks use the modulation and coding scheme (MCS) that achieves a preset channel frame error rate. Our scheme utilizes video priority information along with channel quality information to set the channel coding rate that maximizes the cumulative coding rate of channel coding and application layer unequal error protection. Performance evaluations show that that under the same constraints our scheme results in an average performance improvement of 0.5dB in video PSNR for different channel conditions and different video sequences.

关键词： wireless scalable video streaming unequal error protection modulation and coding schemes

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Error-resilient Video Multicast with Layered Hybrid FEC/ARQ over Broadband Wireless Networks

Error-resilient Video Multicast with Layered Hybrid FEC/ARQ ...

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54th Annual IEEE Global Telecommunications Conference (GLOBECOM)

作者： Jin, Junfeng Ji, Yusheng Zhao, Baohua Hao, Zhou Liu, Zhi Univ Sci & Technol China Sch Comp Sci Hefei 230027 Anhui Peoples R China Natl Inst Informat Tokyo 1018430 Japan

ISBN: (纸本)9781424492688

Video multicast over broadband wireless networks suffers from packet losses induced by fading wireless channels and user heterogeneity in channel conditions within a multicast group. A promising solution to these problems is the use of layered hybrid FEC/ARQ for scalable video multicast. However, how to allocate the radio resources to multiple video layers and how to address the cross-layer combination of application layer hybrid FEC/ARQ and physical layer MCS (modulation and coding schemes) for each video layer, is not a trivial issue. We prove that this problem is NP-hard and propose an optimal Error-resilient Video Multicast (ERVM) framework in infrastructure-based broadband wireless networks. To avoid user heterogeneity and feedback implosion, we use a weighted designated user group to send light-weight feedback messages. The ERVM algorithm is based on the dynamic programming method with a pseudo-polynomial run time, and can get the optimal transmission configuration to maximize the expected utility for the designated user group, which is a probabilistic function of the received video rate. Simulation results show that our ERVM algorithm offers significant improvements over the conventional single-layer FEC/ARQ scheme and the layered FEC scheme. Furthermore, our weighted designated user group with light-weight and accurate feedbacks is better than other user feedback schemes.

关键词： Algorithm design and analysis Automatic repeat request ERVM algorithm Forward error correction MCS physical layer NP-hard problem PSNR Streaming media Wireless networks application layered hybrid FEC-ARQ automatic repeat request broadband networks computational complexity dynamic programming dynamic programming method error-resilient video multicast framework fading channels fading wireless channels feedback forward error correction infrastructure-based broadband wireless networks modulation and coding schemes modulation coding multicast protocols network coding packet losses probability pseudo-polynomial run time radio networks radio resource allocation received video rate probabilistic function resource allocation single-layer FEC-ARQ scheme user feedback schemes user heterogeneity video coding weighted designated user group

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Multi-dimensional Energy Limitation in Sphere Shaping for Nonlinear Interference Noise Mitigation

Multi-dimensional Energy Limitation in Sphere Shaping for No...

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2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Liu, Jingtian Awwad, Elie Jaouen, Yves Institut Polytechnique de Paris Télé Com Paris Palaiseau91120 France

ISBN: (纸本)9798350312614

We propose Four-Dimensional (4D) energy limit enumerative sphere shaping (ESS) of M-QAM signaling to minimize rate loss and improve the transmission performance over non-linear WDM optical-fiber systems. Simulation results show that the proposed scheme outperforms the conventional ESS by 0.19 bit/4D-symbol in achievable information rate over a 205-km single-span link and a WDM transmission of five polarization-division-multiplexed channels with 400-Gbit/s net rate per channel. We also study the achieved performance over several shaping block lengths and show that the achieved gains do not scale well over multi-span systems. © 2023 IEEE.

关键词： coherent transmission systems enumerative sphere shaping modulation and coding schemes non-linear Kerr effect Probabilistic constellation shaping

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Modelling and Analysis of Performance Characteristics in a 60 Ghz 802.11ad Wireless Mesh Backhaul Network for an Urban 5G Deployment

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FUTURE INTERNET 2022年第2期14卷 34页

作者： Mackay, Michael Raschella, Alessandro Toma, Ogeen Liverpool John Moores Univ Sch Comp Sci & Math Byrom St Liverpool L3 3AF Merseyside England

With the widespread deployment of 5G gaining pace, there is increasing interest in deploying this technology beyond traditional Mobile Network Operators (MNO) into private and community scenarios. These deployments leverage the flexibility of 5G itself to support private networks that sit alongside or even on top of existing public 5G. By utilizing a range of virtualisation and slicing techniques in the 5G Core (5GC) and heterogeneous Radio Access Networks (RAN) at the edge, a wide variety of use cases can be supported by 5G. However, these non-typical deployments may experience different performance characteristics as they adapt to their specific scenario. In this paper we present the results of our work to model and predict the performance of millimeter wave (mmWave) backhaul links that were deployed as part of the Liverpool 5G network. Based on the properties of the 802.11ad protocol and the physical characteristics of the environment, we simulate how each link will perform with different signal-to-noise ratio (SNR) and Packet Error Rate (PER) values and verify them against real-world deployed links. Our results show good convergence between simulated and real results and provide a solid foundation for further network planning and optimization.

关键词： private 5G mmWave RAN modulation and coding schemes spectral efficiency

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