Physical Communication最新文献

Multi-slot optimized index modulation based on FHSS for efficient anti-jamming

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-11 DOI: 10.1016/j.phycom.2025.102657

Junhua Tao , Yuxin Shi , Yusheng Li , Liujin Wan , Yusi Zhang

{"title":"Multi-slot optimized index modulation based on FHSS for efficient anti-jamming","authors":"Junhua Tao , Yuxin Shi , Yusheng Li , Liujin Wan , Yusi Zhang","doi":"10.1016/j.phycom.2025.102657","DOIUrl":"10.1016/j.phycom.2025.102657","url":null,"abstract":"<div><div>The more sophisticated reactive follower jamming has become a critical challenge as traditional anti-jamming techniques including frequency hopping spread spectrum (FHSS) and index modulation based on FHSS (IM-FHSS) demonstrate insufficient robustness. To address this challenge, we propose a novel anti-jamming method termed multi-slot optimized index modulation based on frequency hopping spread spectrum (MSO-IM-FHSS). The proposed method innovatively integrates information transmission across multiple time slots, utilizing distinct activation states to convey data through subcarriers. Crucially, the jammer remains unaware of the activation states and their roles, while the states of the time slots are predefined and synchronized to ensure secure communication. At the receiver end, both fixed and optimal threshold detectors are employed to accurately decode the received signals. Theoretical analysis and simulation results show that MSO-IM-FHSS substantially outperforms traditional FHSS and IM-FHSS in terms of anti-jamming capability, attributed to its efficient utilization of both time and frequency domains. This advancement not only enhances communication reliability but spectrum resource utilization, offering a robust solution for modern wireless communication systems.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102657"},"PeriodicalIF":2.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620561","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

An endurance and transmission balancing scheme for solar-powered UAV-aided charging data collection in IoT networks

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-07 DOI: 10.1016/j.phycom.2025.102650

Conghui Hao , Yueyun Chen , Guang Chen

{"title":"An endurance and transmission balancing scheme for solar-powered UAV-aided charging data collection in IoT networks","authors":"Conghui Hao , Yueyun Chen , Guang Chen","doi":"10.1016/j.phycom.2025.102650","DOIUrl":"10.1016/j.phycom.2025.102650","url":null,"abstract":"<div><div>Solar-powered unmanned aerial vehicle (S-UAV) effectively alleviates the energy limitations of traditional UAV, providing greater degrees of freedom for energy allocation in S-UAV-aided charging-enabled data collection. However, the endurance of the S-UAV, ground device endurance, and data transmission performance are three crucial metrics for ensuring the completion of data collection. Optimizing one may not necessarily lead to satisfactory performance in the others. In this paper, we focus on balancing the endurance of S-UAV and ground devices, along with data transmission, to achieve a robust data collection. We propose a novel S-UAV utility to describe the energy consuming and harvesting of S-UAV and devices, and data collection volume from devices. Next, we maximize the proposed S-UAV utility function, via jointly optimizing 3D trajectory, velocity and device scheduling. To tackle the proposed mixed-integer non-convex maximization, we apply the block coordinate descent, slack variable substitution and successive convex approximation techniques to obtain a sub-optimal solution that converges in polynomial time. Numerical results demonstrate the proposed scheme achieves an effective balance among the endurance of the S-UAV, ground devices, and data transmission, outperforming state-of-the-art schemes. In the case of 120 s, it achieves an increase of 25.84% in average data collection volume and a 390.11% enhancement in device residual energy, while only sacrificing 3.28% of the S-UAV’s residual energy.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102650"},"PeriodicalIF":2.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621003","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

Cross-domain human activity recognition using reconstructed Wi-Fi signal

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-06 DOI: 10.1016/j.phycom.2025.102651

Xingcan Chen

{"title":"Cross-domain human activity recognition using reconstructed Wi-Fi signal","authors":"Xingcan Chen","doi":"10.1016/j.phycom.2025.102651","DOIUrl":"10.1016/j.phycom.2025.102651","url":null,"abstract":"<div><div>Recent studies have shown that Wi-Fi channel state information (CSI) based approaches for human activity recognition (HAR) is successful. However, the performance of these approaches often deteriorate when deployed to a new industrial environment. To solve this problem without retraining, we present a novel Wi-Fi CSI tensor based cross-domain HAR approach (TensFi). Specifically, activity-related CSI is first separated from the original CSI through an ensemble empirical mode decomposition (EEMD) algorithm. Then, the sparse signal representation (SSP) algorithm is used to extract partial CSI sub-carriers that are more relevant to human activities. Furthermore, the sparse CSI is modeled as phase-integrated CSI (PI-CSI) and further reconstructed as a CSI tensor with unique decomposition. After that, CANDECOMP/PARAFAC (CP) is used to decompose the reconstructed CSI tensor. Finally, a multi-head self-attention based gated temporal convolutional network (MAGTCN) is designed to capture the features of decomposed CSI tensor and then make the final activity decision. Experimental results show that TensFi can achieve good cross-domain generalization performance.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102651"},"PeriodicalIF":2.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576860","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

G2CAIUN: A novel Genus-2 curve-based authentication for secure data transmission in IoT-based UAV networks

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-05 DOI: 10.1016/j.phycom.2025.102647

Jatin Sharma, Pawan Singh Mehra

{"title":"G2CAIUN: A novel Genus-2 curve-based authentication for secure data transmission in IoT-based UAV networks","authors":"Jatin Sharma, Pawan Singh Mehra","doi":"10.1016/j.phycom.2025.102647","DOIUrl":"10.1016/j.phycom.2025.102647","url":null,"abstract":"<div><div>Unmanned Aerial Vehicles (UAVs) within the Internet of Things (IoT) ecosystem are the networks which are used to collect, process and share data in real-time to support applications like smart agriculture, environment monitoring and disaster management. The communication among UAVs, GCS (Ground Control Station) and External Users (EU) is vulnerable to adversary attacks such as man-in-the-middle, eavesdropping, replay, session key disclosure, impersonation and physical tampering attacks in smart cities scenarios. Most existing studies are based on securing communication between EU and UAV through GCS but do not come across the UAV–UAV and UAV–GCS authentication solutions, which are crucial for UAVs. Therefore, to overcome these problems, this paperwork comes with a lightweight and provable secure mutual authentication scheme which utilises the Hyperelliptic curve (HC) of Genus-2, one-way hash function, XOR operation, random tokens, anonymous identity and timestamps for secure data transmission in EU–GCS–UAV, UAV–GCS and UAV–UAV environment. The proposed scheme is also secured with a lightweight Physical Unclonable Function (PUF) operation to prevent physical capture attacks. The solution provides high security without the intensive computation (2.5 ms) and communication overhead (1456 bits) compared to existing schemes, which rely on bilinear-pairing, quadratic residue theory and elliptic curves of Genus-1. The scheme is formally verified using the Random Oracle Model (ROM) and Scyther under the Dolev–Yao (DY) and Canetti and Krawczyk (CK) adversary models. The informal analysis shows the provable security assessment to make IoT-based UAV networks robust.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102647"},"PeriodicalIF":2.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576859","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

Robust and secure transmission for RIS-assisted RSMA with transceiver hardware impairments

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-05 DOI: 10.1016/j.phycom.2025.102629

Kehao Wang, Dajin Li, Jialiang Zhang, Changzhen Li

{"title":"Robust and secure transmission for RIS-assisted RSMA with transceiver hardware impairments","authors":"Kehao Wang, Dajin Li, Jialiang Zhang, Changzhen Li","doi":"10.1016/j.phycom.2025.102629","DOIUrl":"10.1016/j.phycom.2025.102629","url":null,"abstract":"<div><div>In practice, transceiver hardware impairments inevitably introduce distortion noise, leading to a decrease in system security performance. In this paper, we present a robust and secure transmission framework for a rate-splitting multiple access (RSMA) communication system assisted by reconfigurable intelligent surface (RIS) with transceiver hardware impairments encountered in practice. Specifically, we investigate a joint optimization of transmitting precoder at base station (BS), phase shift at RIS, and allocation vector for common secrecy rate (SR), with objective of maximizing the minimum SR of the system. To address this issue, we firstly perform an equivalent transformation of the original problem, decoupling it into two distinct non-convex subproblems. Subsequently, we employ successive convex approximation (SCA) and semi-definite relaxation (SDR) to address the non-convexity of these subproblems, resulting in two convex approximate subproblems. Ultimately, we effectively solve these subproblems using alternating optimization (AO) method. Numerical results demonstrate that the proposed robust transmission scheme effectively mitigates the SR performance degradation induced by hardware impairments in comparison to traditional NOMA, SDMA, and non-robust schemes.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102629"},"PeriodicalIF":2.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576861","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

GWO-based SIM configuration for implementing multiuser beamforming in the wave domain

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-04 DOI: 10.1016/j.phycom.2025.102648

Abdel Nasser Soumana Hamadou , Ciira wa Maina , Kibet Lang’at , Moussa Moindze Soidridine

引用次数: 0

Intelligent resource allocation for UAV-IRS assisted semantic task offloading

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-03 DOI: 10.1016/j.phycom.2025.102649

Xuefeng Chen , Yuwei Zhang , Bing Hu

{"title":"Intelligent resource allocation for UAV-IRS assisted semantic task offloading","authors":"Xuefeng Chen , Yuwei Zhang , Bing Hu","doi":"10.1016/j.phycom.2025.102649","DOIUrl":"10.1016/j.phycom.2025.102649","url":null,"abstract":"<div><div>Semantic communication provides a promising scheme to enhance spectral efficiency and system reliability by transmitting only critical semantics. In this paper, the research focus is directed towards the unmanned aerial vehicle (UAV)-intelligent reflective surface (IRS) assisted semantic mobile edge computing (SMEC) network, given computationally intensive nature of semantic tasks. Specifically, the UAV can offload semantic task data to edge computing servers to alleviate the task implement pressure on the cost of power and energy so as to improve communication flexibility. Meanwhile, the IRS is designed to tackle the challenges posed by unfavorable communication environments. To find an optimal solution to realize the above-mentioned ideal, we frame the problem of joint optimization of UAV’s trajectory, transmission power, IRS reflection coefficient and the number of semantic symbols. Considering the existing hybrid discrete-continuous action space and the non-convex nature of the optimization problem, a deep reinforcement learning (DRL) scheme is proposed. In particular, the DDPG algorithm is employed to control the IRS reflection coefficients and transmission power, while D3QN algorithm is used to control the UAV trajectory and the number of semantic symbols. The results of simulation indicate that the proposed scheme greatly improves the transmission rate by 67% in comparison with the traditional communication methods.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"70 ","pages":"Article 102649"},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563639","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

Joint estimation of DOD and DOA for bistatic MIMO assisted by Intelligent Reflecting Surface

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-03 DOI: 10.1016/j.phycom.2025.102631

Xinpeng Xue , Ke Wang , Fangqing Wen , Junpeng Shi

{"title":"Joint estimation of DOD and DOA for bistatic MIMO assisted by Intelligent Reflecting Surface","authors":"Xinpeng Xue , Ke Wang , Fangqing Wen , Junpeng Shi","doi":"10.1016/j.phycom.2025.102631","DOIUrl":"10.1016/j.phycom.2025.102631","url":null,"abstract":"<div><div>Intelligent Reflecting Surface (IRS) represents a significant breakthrough in wireless communication. It can reconstruct wireless channels even when there are obstructions between the transmitting array (Tx) and the receiving array (Rx), enabling Multiple-Input Multiple-Output (MIMO) radar to locate targets from non-line-of-sight (NLOS) directions, however, existing optimization-based methods are too complex to be practically implemented. This paper investigates the angle estimation problem for arbitrary manifold array bistatic MIMO radar and proposes a joint two-dimensional direction-of-departure (2D-DOD) and two-dimensional direction-of-arrival (2D-DOA) estimation algorithm assisted by an IRS. The algorithm employs the PM algorithm and the spectral peak search method to estimate direction-of-departure (DOD) and direction-of-arrival (DOA), respectively, achieving a four-dimensional angle estimation. The proposed framework can jointly estimate two-dimensional NLOS signals without the need to pre-understand the target-IRS channel, the algorithm’s complexity and angle estimation error are analyzed, and simulation results confirm both the efficacy and superiority of the proposed algorithm.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"70 ","pages":"Article 102631"},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548433","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

Throughput analysis of movable antenna systems with mobility exploitation models

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-03 DOI: 10.1016/j.phycom.2025.102638

Pedro Candeias, Rodolfo Oliveira

{"title":"Throughput analysis of movable antenna systems with mobility exploitation models","authors":"Pedro Candeias, Rodolfo Oliveira","doi":"10.1016/j.phycom.2025.102638","DOIUrl":"10.1016/j.phycom.2025.102638","url":null,"abstract":"<div><div>Movable antenna systems offer a promising approach to enhancing wireless communications by dynamically adjusting antenna positions to optimize signal reception. This paper explores the performance of a movable antenna at the receiver side considering a multi-tap propagation scenario in both Single-Input Single-Output (SISO) and Multiple-Input Multiple-Output (MIMO) systems. We introduce and evaluate four distinct mobility patterns that dictate antenna movement. The mobility patterns are part of the exploitation phase, aimed at probing the achievable capacity at different antenna locations. Additionally, we account for the time required to physically move the antenna in the system throughput, considering the worst-case scenario where the transmission is temporarily paused during the antenna motion. Our analysis assesses the performance of mobility pattern heuristics by examining their ability to balance the tradeoff between capacity gains from exploring new antenna positions and the downtime due to antenna movement. Simulation results show that specific antenna mobility patterns can achieve up to 70% of the SISO’s optimal throughput or 77% of the MIMO’s optimal throughput. The results reported in this paper show that simple mobility patterns more than double or triple the MIMO’s or SISO’s throughput compared to a scenario where the antenna remains fixed in a random position, respectively, underscoring the significant potential of the antenna mobility patterns in enhancing the MA system performance.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"70 ","pages":"Article 102638"},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563562","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

A review of channel estimation research methods for massive MIMO systems

IF 2 4区计算机科学

Physical Communication Pub Date : 2025-03-03 DOI: 10.1016/j.phycom.2025.102632

Huahong Ma, Jinlong Du, Honghai Wu, Ling Xing, Ruijuan Zheng

{"title":"A review of channel estimation research methods for massive MIMO systems","authors":"Huahong Ma, Jinlong Du, Honghai Wu, Ling Xing, Ruijuan Zheng","doi":"10.1016/j.phycom.2025.102632","DOIUrl":"10.1016/j.phycom.2025.102632","url":null,"abstract":"<div><div>In massive MIMO systems, channel estimation is a crucial link. Its accuracy is directly related to the quality of signal recovery, adaptive modulation, and the selection of coding schemes, which in turn affects the performance of the entire communication system. With the continuous development of technology, channel estimation faces more and more challenges. The complexity of channel estimation continues to increase with the increase in the size of the antenna array. Classical channel estimation methods are difficult to accurately estimate, and mainstream channel estimation algorithms also need to be continuously improved. These challenges need to be overcome through continuous research and technological innovation. Nowadays, more and more research works on channel estimation are being conducted in the field of massive MIMO. However, the classification method of literature reviews in this field is roughly a classification of methods in a certain aspect. The overview is not comprehensive enough, or some methods are briefly summarized without detailed classification, thus lacking a systematic introduction and summary. This paper will classify from two aspects: classical algorithms and mainstream algorithms, focusing on the advantages and disadvantages of the two types of algorithms and their related impacts. Finally, the challenges and opportunities faced by channel estimation are discussed, the potential and limitations of emerging technologies such as deep learning in channel estimation are pointed out, and prospects for future research directions are proposed.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"71 ","pages":"Article 102632"},"PeriodicalIF":2.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600700","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