International Journal of Satellite Communications and Networking最新文献

Joint Optimization of Controller Placement and Switch Assignment in SDN-Based LEO Satellite Networks 基于sdn的LEO卫星网络控制器布局与交换机分配联合优化

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-05-29 DOI: 10.1002/sat.70059

Zhiyun Jiang, Menglong Yang, Wei Li

{"title":"Joint Optimization of Controller Placement and Switch Assignment in SDN-Based LEO Satellite Networks","authors":"Zhiyun Jiang, Menglong Yang, Wei Li","doi":"10.1002/sat.70059","DOIUrl":"https://doi.org/10.1002/sat.70059","url":null,"abstract":"<div>\u0000 \u0000 <p>Software-defined networking (SDN)–based low earth orbit (LEO) satellite networks utilize various characteristics of SDN to alleviate the problem of inefficient resource management under traditional network architectures. The most fundamental issue in SDN-based LEO satellite networks is how to place controllers and assign switches. The strategies adopted directly affect the network performance. However, most existing strategies cannot sensibly and dynamically adjust the controller location and controller–switch mapping according to the topology variation and traffic fluctuation of the LEO satellite network. In this paper, based on the dynamic placement dynamic assignment scheme, we first formulate the controller placement and switch assignment (CPSA) problem in the LEO satellite networks, which is an integer nonlinear programming problem. Then, a prior population–based genetic algorithm (PPGA) is proposed. Some individuals of the final generation of the algorithm for the current time slot are used as the prior population of the next time slot, thus stringing together the algorithms of adjacent time slots for successive optimization. Finally, we obtain the near-optimal solution for each time slot. Extensive experiments demonstrate that PPGA can adapt to the network topology changes and traffic surges and exhibits excellent robustness in the face of network failures, outperforming some existing CPSA strategies in the LEO satellite networks.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"700-725"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Station-Keeping Strategies on VSAT Link Performance in GEO Satellites Under Adaptive Coding and Modulation 自适应编码和调制条件下站保持策略对GEO卫星VSAT链路性能的影响

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-05-27 DOI: 10.1002/sat.70061

Oz Ibrahim, Yumusak Nejat

{"title":"Impact of Station-Keeping Strategies on VSAT Link Performance in GEO Satellites Under Adaptive Coding and Modulation","authors":"Oz Ibrahim, Yumusak Nejat","doi":"10.1002/sat.70061","DOIUrl":"https://doi.org/10.1002/sat.70061","url":null,"abstract":"<div>\u0000 \u0000 <p>The demand for high-throughput satellite (HTS) services from Geostationary Earth Orbit (GEO) platforms continues to grow, driving the widespread adoption of advanced physical-layer techniques such as adaptive coding and modulation (ACM). ACM enhances link availability and spectral efficiency by dynamically adapting modulation order and forward error correction (FEC) in response to channel conditions, primarily targeting atmospheric impairments. However, an important and often underrepresented factor in GEO link performance is the impact of satellite orbital motion and station-keeping dynamics on antenna pointing accuracy. This paper investigates the effect of different station-keeping strategies on ACM-based VSAT link performance by comparing a chemically propelled satellite (Sat-C), and an electrically propelled satellite (Sat-E). Simulation results show that Sat-C exhibits average subsatellite point deviations of approximately 0.178°, compared to only 0.055° for Sat-E, leading to significantly higher pointing losses, particularly in Ka-band and for large antenna diameters. These variations translate into several decibels of additional link degradation, forcing frequent ACM downgrades from high-efficiency MODCODs (e.g., 16APSK/32APSK) to more robust modes such as QPSK. The results demonstrate that satellite station-keeping strategy is not merely an orbital control parameter, but a fundamental determinant of communication system efficiency that must be co-designed with ACM to realize the capacity of future GEO networks fully.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"746-756"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toward Real-Time Earth Observation With Satellite Constellation Crosslinks and Propulsion 利用卫星星座交联和推进技术实现实时地球观测

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-06-10 DOI: 10.1002/sat.70060

Manwei Chan, Kerri Cahoy, Oliver de Weck, Alessandro Golkar

{"title":"Toward Real-Time Earth Observation With Satellite Constellation Crosslinks and Propulsion","authors":"Manwei Chan, Kerri Cahoy, Oliver de Weck, Alessandro Golkar","doi":"10.1002/sat.70060","DOIUrl":"https://doi.org/10.1002/sat.70060","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of remote sensing small-satellite constellations has created the potential for high-resolution Earth observation data to reach end users faster. This work investigates how propulsion and intersatellite links enable constellations to continuously collect and deliver data faster than constellations without these capabilities using the age of information, system response time, and total pass time metrics. Analyzing the cost of intersatellite link and propulsion-capable satellites, a Pareto optimal analysis revealed 29% of designs had both capabilities when optimizing for age of information, 7% of designs had both capabilities when optimizing for system response time, and 33% of designs had both capabilities when optimizing for total pass time. Two architectures, 127M (FY24), 60°:12/1/0 Walker no-ISL/no-propulsion capabilities and a 2.2B (FY24) 60°:72/24/0 Walker with ISL and propulsive capabilities were Pareto optimal for all three metrics. For constellations costing between $150M and $1B (FY24), age of information can be reduced by 32 s for every million dollars spent, system response time can be reduced by 35 s for every million dollars spent, and total pass time over 3 days can be increased by 2 s for every million dollars spent.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"726-745"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CLEAR Interference Cancellation in a Wideband Dual-Channel Receiver for Independent Satellite Multi-Connectivity Links 用于独立卫星多连接链路的宽带双通道接收机的清晰干扰消除

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-06-01 DOI: 10.1002/sat.70058

Svilen Dimitrov

{"title":"CLEAR Interference Cancellation in a Wideband Dual-Channel Receiver for Independent Satellite Multi-Connectivity Links","authors":"Svilen Dimitrov","doi":"10.1002/sat.70058","DOIUrl":"https://doi.org/10.1002/sat.70058","url":null,"abstract":"<p>In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual-channel receiver, is studied for a pair of independent satellite multi-connectivity links, using the same carrier frequency and signal bandwidth in use cases with or without polarization division multiplexing (PDM). The CLEAR method jointly processes the samples of the two channels after the corresponding analog-to-digital converters (ADCs), it has a low computational complexity and is suitable for very-high-rate implementations. This non-data-aided and non-decision-directed method is derived in a channel model with co-channel interference (CCI) and/or cross-polarization interference (XPI), including effects such as reduced cross-channel discrimination (XCD) and/or cross-polarization discrimination (XPD) of the receive antenna, depolarization due to atmospheric conditions, differential frequency offset (DFO) between the two channels, and power imbalance due to independent receive antenna gains. The resulting carrier-to-interference ratio \u0000<span></span><math>\u0000 <mi>C</mi>\u0000 <mo>/</mo>\u0000 <mi>I</mi></math> and carrier-to-noise-and-interference ratio \u0000<span></span><math>\u0000 <mi>C</mi>\u0000 <mo>/</mo>\u0000 <mo>(</mo>\u0000 <mi>N</mi>\u0000 <mo>+</mo>\u0000 <mi>I</mi>\u0000 <mo>)</mo></math> performance of the dual-channel receiver presents considerable energy efficiency improvements with this interference compensation method, and is particularly beneficial for higher-order modulation. As a result, the CLEAR method is a practical solution to increase the data rates of the satellite air interface in DVB-S2X/CCSDS and 5G NTN systems by the use of two independent satellite links.</p>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"689-699"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/sat.70058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive Beam Divergence for Different HAPS Altitudes in Satellite-HAPS FSO Communication 卫星-HAPS FSO通信中不同HAPS高度的自适应波束发散

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-05-01 DOI: 10.1002/sat.70052

Jitender Kumar, Soven K. Dana

{"title":"Adaptive Beam Divergence for Different HAPS Altitudes in Satellite-HAPS FSO Communication","authors":"Jitender Kumar, Soven K. Dana","doi":"10.1002/sat.70052","DOIUrl":"https://doi.org/10.1002/sat.70052","url":null,"abstract":"<div>\u0000 \u0000 <p>Satellite communication fulfills the demand of global connectivity for next-generation networks. Free space optical (FSO) communication connects these high-bandwidth global links for seamless transmission. High altitude platform station (HAPS) improves the outage probability by relaying the signal when transmission to the long distances in one hop is not reliable. In this work, we consider adaptive beam divergence (ABD) technique for a low earth orbit (LEO) satellite, which transmits the FSO signal to the HAPS, where the divergence angle of the signal is selected based on the altitude of the HAPS. We considered the effects of threshold signal-to-noise ratio (SNR), receiver aperture diameter, jitter standard deviation, optical-to-electrical conversion efficiency and the horizontal distance between satellite and HAPS on the link outage probability. The results show that by using an appropriate beam divergence angle according to the height of the HAPS, the performance of the system improves. Additionally, it is observed that for a fixed outage probability, ABD achieves communication for longer transmission range with the HAPS located at an altitude, which is lower in comparison with the altitudes at lower and upper fixed divergence angles by 1.610 and 2.169 km, respectively.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"653-660"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Outage and Throughput Analysis of RSMA-Enabled Satellite Downlinks Over Shadowed Rician Fading 支持rsma的卫星下行链路在阴影信道衰落下的中断和吞吐量分析

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-04-21 DOI: 10.1002/sat.70053

Huu Q. Tran

{"title":"Outage and Throughput Analysis of RSMA-Enabled Satellite Downlinks Over Shadowed Rician Fading","authors":"Huu Q. Tran","doi":"10.1002/sat.70053","DOIUrl":"https://doi.org/10.1002/sat.70053","url":null,"abstract":"<div>\u0000 \u0000 <p>Rate-splitting multiple access (RSMA) is a promising enabler for improving spectral efficiency, interference management, and user fairness in satellite downlink systems. Yet, most RSMA studies are either tailored to terrestrial settings or rely primarily on numerical optimization, offering limited analytical insight under satellite-realistic propagation such as shadowing. Motivated by geostationary Earth orbit (GEO) downlink operation, this paper provides a tractable performance analysis of an RSMA-enabled single-beam multiuser downlink over shadowed Rician fading. We consider a \u0000<span></span><math>\u0000 <mi>K</mi></math>-antenna GEO satellite serving \u0000<span></span><math>\u0000 <mi>Q</mi></math> single-antenna users with maximum-ratio transmission (MRT)–based precoding and perfect successive interference cancellation (SIC). Closed-form expressions are derived for the distribution of the effective channel gain, leading to exact and high-SNR outage probability characterizations. The resulting formulas explicitly reveal the roles of the antenna count (defined as the number of satellite transmit antennas \u0000<span></span><math>\u0000 <mi>K</mi></math>), shadowed Rician parameters, and RSMA power allocation. Furthermore, the analysis yields simple feasibility conditions that delineate practical operating regions for common/private power splitting. We obtain user and system throughput expressions and identify that the achieved diversity order equals \u0000<span></span><math>\u0000 <mi>K</mi></math>. Monte Carlo simulations validate the analysis and benchmark RSMA against nonorthogonal multiple access (NOMA) under various shadowing levels and power-allocation settings, highlighting reliability–rate trade-offs and providing actionable guidance for GEO satellite downlink design.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"661-673"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Large-Scale Channel Model for Satellite–Terrestrial Communication Based on GBSM and NHMP 基于GBSM和NHMP的星地通信大尺度信道模型研究

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-04-28 DOI: 10.1002/sat.70054

Dongxu Liu, Zhaoyang Su, Yuchen Cai, Yibo Gao, Yunxin Liang, Liu Liu

{"title":"Research on Large-Scale Channel Model for Satellite–Terrestrial Communication Based on GBSM and NHMP","authors":"Dongxu Liu, Zhaoyang Su, Yuchen Cai, Yibo Gao, Yunxin Liang, Liu Liu","doi":"10.1002/sat.70054","DOIUrl":"https://doi.org/10.1002/sat.70054","url":null,"abstract":"<div>\u0000 \u0000 <p>With the rapid development of LEO satellite communication systems, satellite–terrestrial integrated networks have become a crucial component of future 6G communication systems. However, the high-speed relative motion between satellites and terrestrial terminals forms a complex dual-dynamic communication scenario, which endows the channel with prominent time variability and nonstationarity, thus posing great challenges to the accurate modeling of large-scale fading. To address this problem, this paper proposes an integrated propagation probability calculation model that combines the GBSM with the NHMP. First, based on the Fresnel zone diffraction principle and stochastic geometry theory, this paper models urban buildings with Poisson and Rayleigh distributions and analytically derives the time-varying probability expressions for LOS propagation and reflected propagation. On this basis, aiming at the nonstationary switching of links among different propagation states, the NHMP model is constructed and the corresponding state transition matrix is derived, with the time-varying probability of integrated effective propagation solved by the forward Kolmogorov equation. The accuracy of the proposed model is verified via Monte Carlo simulation, which provides a universal large-scale channel modeling method for the satellite–terrestrial link budget in dual-dynamic scenarios.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"674-688"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Cell Division for Interference Management in Satellite Direct-to-Cell Systems 卫星直连小区系统中动态小区划分的干扰管理

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-10-09 Epub Date: 2026-05-21 DOI: 10.1002/sat.70062

Satya Chan, Hee Wook Kim, Bon-Jun Ku, Daesub Oh

{"title":"Dynamic Cell Division for Interference Management in Satellite Direct-to-Cell Systems","authors":"Satya Chan, Hee Wook Kim, Bon-Jun Ku, Daesub Oh","doi":"10.1002/sat.70062","DOIUrl":"https://doi.org/10.1002/sat.70062","url":null,"abstract":"<p>Direct-to-cell (D2C) connectivity enables future non-terrestrial networks to provide service directly to standard terrestrial user equipment (UE) when terrestrial networks (TN) are unavailable. In this work, the satellite system is considered as a secondary network that supplements existing TN coverage while minimizing interference to the primary terrestrial infrastructure. To achieve this goal, we propose a dynamic cell-division framework in which satellite cells are adaptively formed to balance coverage and interference constraints. For UEs located near TN cells, a projected gradient descent algorithm is developed to place satellite cells as far as possible from the TN while maintaining user coverage. For UEs located far from the TN, a minimum covering cell (MCC) algorithm is employed to efficiently serve remote users while limiting the increase in the total number of cells. Simulation results demonstrate that the proposed method significantly reduces interference to the terrestrial network compared with conventional hexagonal cell layouts and the conventional MCC algorithm. In other words, the proposed method enables higher throughput without increasing the interference level compared to conventional approaches.</p>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 6","pages":"757-765"},"PeriodicalIF":1.8,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/sat.70062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RL-GA: An Optimization Strategy for Spatial Information Network Topology RL-GA：空间信息网络拓扑优化策略

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-08-11 Epub Date: 2026-05-15 DOI: 10.1002/sat.70050

Zhenxing Hu, Peng Yang, Jun Huang

{"title":"RL-GA: An Optimization Strategy for Spatial Information Network Topology","authors":"Zhenxing Hu, Peng Yang, Jun Huang","doi":"10.1002/sat.70050","DOIUrl":"https://doi.org/10.1002/sat.70050","url":null,"abstract":"<div>\u0000 \u0000 <p>Spatial information networks (SINs) are network systems characterized by their complex structure, high-speed operation, and extreme dynamics. Their intricate topology, involving a vast number of nodes and links, coupled with a harsh operating environment, makes them susceptible to both natural and man-made interference. This poses significant challenges to network stability. Therefore, the primary objective of topology optimization for SIN is to rapidly construct a network topology that is stable, highly connected, robust, and efficient. Previous optimization algorithms, including exact solutions based on dynamic programming and approximate solutions based on heuristics, struggle with limitations in escaping local optima and achieving rapid convergence. To address these drawbacks, this paper introduces a novel approach: a reinforcement learning–enhanced adaptive genetic algorithm (RL-GA). This framework integrates reinforcement learning to dynamically adjust the key parameters of the genetic algorithm, enhancing its ability to escape local optima and accelerate convergence. Experimental results, based on simulations of the Iridium and Qianfan satellite constellations, demonstrate that the proposed RL-GA algorithm outperforms existing methods in both solution quality (optimization results) and convergence speed. This advancement offers a more effective solution for SIN topology optimization, thereby enhancing the stability and efficiency of space-based communication networks.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 5","pages":"636-649"},"PeriodicalIF":1.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Secure Satellite Communication in the Post-Quantum Era: A Lattice-Based Cryptographic Approach 后量子时代的安全卫星通信：一种基于格的加密方法

IF 1.8 4区计算机科学

International Journal of Satellite Communications and Networking Pub Date : 2026-08-11 Epub Date: 2026-03-18 DOI: 10.1002/sat.70041

Tutan Ghosh, Ira Nath

{"title":"Secure Satellite Communication in the Post-Quantum Era: A Lattice-Based Cryptographic Approach","authors":"Tutan Ghosh, Ira Nath","doi":"10.1002/sat.70041","DOIUrl":"https://doi.org/10.1002/sat.70041","url":null,"abstract":"<div>\u0000 \u0000 <p>Quantum computing poses a looming threat to the cryptographic primitives that secure today's satellite communications. In response, post-quantum cryptography (PQC) has emerged to protect data against future quantum-enabled adversaries. This paper provides a comprehensive analysis of lattice-based PQC methods for secure satellite communication in the post-quantum era. We examine the performance and security of leading lattice-based schemes—including encryption/key-establishment algorithms like CRYSTALS-Kyber and NTRU, and digital signature schemes like CRYSTALS-Dilithium and FALCON—in the context of satellite systems. Real-world benchmark data from peer-reviewed sources are used to evaluate computational efficiency, bandwidth overhead, memory footprint, and energy consumption of these schemes on resource-constrained satellite hardware. We compare lattice-based approaches with classical RSA/ECC and alternative post-quantum techniques (hash-based signatures, code-based encryption), highlighting the favorable trade-offs that have led to lattice-based algorithms becoming primary candidates for standardization. Security analysis is presented to explain the hardness assumptions (e.g., Learning With Errors and NTRU problems) that underpin lattice cryptography, and to assess known cryptanalytic results, resistance to quantum attacks, and remaining security margins. We also discuss practical considerations for deploying lattice-based cryptography on satellites, including integration into existing communication protocols, potential need for hardware acceleration, and strategies for cryptographic agility in long-lived space assets. The results show that lattice-based PQC can be feasibly implemented in satellites with acceptable performance impact, providing strong security against quantum threats and a viable path to future-proof the confidentiality and authenticity of satellite communications.</p>\u0000 </div>","PeriodicalId":50289,"journal":{"name":"International Journal of Satellite Communications and Networking","volume":"44 5","pages":"524-543"},"PeriodicalIF":1.8,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0