IEEE Transactions on Wireless Communications最新文献_第8页

Importance-Aware Semantic Communication in MIMO-OFDM Systems Using Vision Transformer 基于视觉变压器的MIMO-OFDM系统重要性感知语义通信

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-10 DOI: 10.1109/TWC.2026.3665639

Joohyuk Park;Yongjeong Oh;Jihun Park;Yo-Seb Jeon

{"title":"Importance-Aware Semantic Communication in MIMO-OFDM Systems Using Vision Transformer","authors":"Joohyuk Park;Yongjeong Oh;Jihun Park;Yo-Seb Jeon","doi":"10.1109/TWC.2026.3665639","DOIUrl":"https://doi.org/10.1109/TWC.2026.3665639","url":null,"abstract":"This paper presents a novel importance-aware quantization, subcarrier mapping, and power allocation (IA-QSMPA) framework for semantic communication in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems, empowered by a pretrained Vision Transformer (ViT). The proposed framework exploits attention-based importance extracted from a pretrained ViT to jointly optimize quantization levels, subcarrier mapping, and power allocation. Specifically, IA-QSMPA maps semantically important features to high-quality subchannels and allocates resources in accordance with their contribution to task performance and communication latency. To efficiently solve the resulting nonconvex optimization problem, a block coordinate descent algorithm is employed. The framework is further extended to operate under finite blocklength transmission, where communication errors may occur. In this setting, a segment-wise linear approximation of the channel dispersion penalty is introduced to enable efficient joint optimization under practical constraints. Simulation results on multi-view image classification and single-object detection tasks demonstrate that IA-QSMPA significantly outperforms conventional methods in both ideal and finite blocklength transmission scenarios, achieving superior task performance and communication efficiency.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13494-13510"},"PeriodicalIF":10.7,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

ISAC for Cell-Free Massive MIMO: Cooperation and Sensing Information Fusion 无单元大规模MIMO的ISAC：合作与传感信息融合

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-06 DOI: 10.1109/TWC.2026.3668375

Jie Ling;Jing Jin;Qixing Wang;Xinsheng Zhao;Jiamin Li;Yanfeng Hu;Jing Dong;Siying Lv;Dongming Wang;Xiaohu You;Jiangzhou Wang

{"title":"ISAC for Cell-Free Massive MIMO: Cooperation and Sensing Information Fusion","authors":"Jie Ling;Jing Jin;Qixing Wang;Xinsheng Zhao;Jiamin Li;Yanfeng Hu;Jing Dong;Siying Lv;Dongming Wang;Xiaohu You;Jiangzhou Wang","doi":"10.1109/TWC.2026.3668375","DOIUrl":"10.1109/TWC.2026.3668375","url":null,"abstract":"To realize the potential of integrated sensing and communication (ISAC) in cell-free (CF) massive MIMO system, an ISAC framework is proposed in this paper. With numbers and locations of scatterers (targets) unknown, based on received downlink data signals from the transmit access point (tAP) antenna, multiple receive access points (rAPs) first estimate delays locally. In each outer iteration, by comparing the estimated delays with the delays of the paths through extracted scatterer locations, selected rAPs search out mismatched estimated delays. Through cooperation, the potential locations of the scatterers forming each candidate location set corresponding to each mismatched delay are obtained, and each set will be evaluated in sequence. Specifically, a joint evaluation algorithm is proposed, where the probability model for the joint evaluation problem is established based on delay and limited angular information. Under the expectation maximization (EM) framework, by fusing information from all the rAPs, the extracted scatterer locations and candidate locations are adjusted, and the evaluation results are estimated, which can be regarded as the global probability of scatterers exist at candidate locations. When the evaluation results of all the locations in a candidate location set are low, the corresponding delay will be discarded, otherwise, the candidate location with the highest evaluation result in the set will be extracted. The proposed framework avoids exhaustive search in different associations of scatterers and estimated delays, and is more flexible than extraction from all the candidate locations based on fixed thresholds. Then, based on a simplified model, the impact of system parameters on delay based location sensing accuracy is revealed with the theoretical analysis. Finally, based on the prototype system with CF radio access network (RAN) architecture, the proposed framework is experimentally validated.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13511-13527"},"PeriodicalIF":10.7,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Pinching Antenna Systems for Integrated Sensing and Communications 集成传感和通信的压缩天线系统

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-06 DOI: 10.1109/TWC.2026.3668822

Haochen Li;Ruikang Zhong;Zhiwen Pan;Chao Dong;Jiayi Lei;Yuanwei Liu

{"title":"Pinching Antenna Systems for Integrated Sensing and Communications","authors":"Haochen Li;Ruikang Zhong;Zhiwen Pan;Chao Dong;Jiayi Lei;Yuanwei Liu","doi":"10.1109/TWC.2026.3668822","DOIUrl":"10.1109/TWC.2026.3668822","url":null,"abstract":"In this work, a multiple waveguide pinching antenna system (PASS) assisted integrated sensing and communication (ISAC) system is proposed, where the base station (BS) is equipped with transmitting pinching antennas (PAs) and receiving uniform linear array (ULA) antennas. The PASS-transmitting-ULA-receiving (PTUR) BS transmits the communication and sensing signals through the PAs on waveguides and collects the echo sensing signals with the mounted ULA. Based on this configuration, a target sensing Cramér–Rao Bound (CRB) minimization problem is formulated under communication quality-of-service (QoS) constraints, power budget constraint, and PA deployment constraints. To tackle the resulting non-convex problem, an alternating optimization (AO) framework is developed, which decomposes the problem into a digital beamforming sub-problem and a pinching beamforming sub-problem. The digital beamforming design is optimized via semidefinite relaxation (SDR), while the PA deployment is updated using penalty-based method. Simulation results demonstrate that: 1) the proposed PASS assisted ISAC framework achieves superior performance over benchmark schemes; and 2) the PASS assisted ISAC is less affected by stringent communication constraints compared to conventional MIMO-ISAC, and benefits from increasing the number of waveguides and PAs per waveguide.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13416-13429"},"PeriodicalIF":10.7,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147371427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Channel Semantic Characterization for Integrated Sensing and Communication Scenarios: From Measurements to Modeling 集成传感和通信场景的信道语义表征：从测量到建模

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3667552

Zhengyu Zhang;Ruisi He;Bo Ai;Mi Yang;Xuejian Zhang;Ziyi Qi;Zhangdui Zhong

{"title":"Channel Semantic Characterization for Integrated Sensing and Communication Scenarios: From Measurements to Modeling","authors":"Zhengyu Zhang;Ruisi He;Bo Ai;Mi Yang;Xuejian Zhang;Ziyi Qi;Zhangdui Zhong","doi":"10.1109/TWC.2026.3667552","DOIUrl":"10.1109/TWC.2026.3667552","url":null,"abstract":"As a novel technology in the sixth-generation (6G) wireless communication systems, integrated sensing and communication (ISAC) enables intelligent agents to perceive, predict, and interact with the environment. It is crucial for ISAC to acquire environmental information based on electromagnetic propagation, referred to as channel semantics, to facilitate tasks such as decision-making and beamforming. However, channel models that focus on physical characteristics face challenges in representing the semantics embedded in the channel, thereby limiting the performance evaluation of ISAC systems. To tackle this, we present a novel unified framework for channel modeling from the conceptual event perspective. By leveraging a multi-level semantic structure and characterized knowledge libraries, the framework decomposes complex channel characteristics into composable and extensible high-level semantic characterization, thereby better capturing the relationship between the environment and channel, and enabling more flexible adjustments of channel models for different events without requiring a complete reset. Specifically, we define channel semantics from three levels: status semantics, behavior semantics, and event semantics, corresponding to channel transient multipaths, channel time-varying trajectories, and channel topology, respectively. Taking a realistic vehicular ISAC scenario as an example, we perform semantic clustering through depth estimation and semantic segmentation of environmental images, and further characterize the channel status semantics by fitting multipath statistical distributions; behavior semantics are modeled using Markov chains to capture time-varying characteristics; event semantics are characterized by employing a co-occurrence matrix. The results indicate that the proposed model can generate accurate channels whereas representing rich semantic information. Additionally, generalization of the model for customized semantics is demonstrated.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13073-13089"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 Reference Anchor Selection for Enhanced TDoA-Based UWB Localization in Complex Scenarios 复杂场景下基于tdob的增强超宽带定位动态参考锚点选择

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3667604

Yiping Yang;Lei Zhang;Zhen Xi;Yu Sun;Qiwei Chen;Mingming Zhang

{"title":"Dynamic Reference Anchor Selection for Enhanced TDoA-Based UWB Localization in Complex Scenarios","authors":"Yiping Yang;Lei Zhang;Zhen Xi;Yu Sun;Qiwei Chen;Mingming Zhang","doi":"10.1109/TWC.2026.3667604","DOIUrl":"10.1109/TWC.2026.3667604","url":null,"abstract":"Previous studies on time difference of arrival (TDoA)-based ultra-wideband (UWB) localization typically employed an arbitrary and fixed reference anchor during the localization process. However, this scheme fails to maintain stable and high-quality performance in complex scenarios, since the localization of mobile targets suffers from multipath interference and the change in sensor-target geometry, while the reference anchor amplifies this effect. To address this issue, we present a dynamic reference anchor selection algorithm, which determines the reference anchor by evaluating the factor that fuses geographical factor and link quality. In addition, we integrate dynamic reference anchor selection into an optimized UWB localization approach to achieve high accuracy. The position is calculated by a constrained Taylor algorithm after UWB calibration and finally fine-tuned by a Kalman filter. The proposed approach was validated using data collected in both laboratory and office scenarios. The experimental results show that the 3D dynamic localization error of the proposed approach reaches 4.9 cm on average. The dynamic reference anchor selection algorithm we proposed improves the overall localization accuracy by 18.4 %, with a dominance of 87.8 % and 100 % in the laboratory and office scenario, respectively. Furthermore, the localization stability and reliability are also validated with a reduction in maximum localization error and avoidance of extreme outliers.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13025-13041"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147361073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Statistical Analysis and End-to-End Performance Evaluation of Traffic Models for Automotive Data 基于汽车数据的交通模型的统计分析和端到端性能评估

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3668104

Marcello Bullo;Amir Ashtari Gargari;Paolo Testolina;Michele Zorzi;Marco Giordani

{"title":"Statistical Analysis and End-to-End Performance Evaluation of Traffic Models for Automotive Data","authors":"Marcello Bullo;Amir Ashtari Gargari;Paolo Testolina;Michele Zorzi;Marco Giordani","doi":"10.1109/TWC.2026.3668104","DOIUrl":"10.1109/TWC.2026.3668104","url":null,"abstract":"Autonomous driving is a major paradigm shift in transportation, with the potential to enhance safety, optimize traffic congestion, and reduce fuel consumption. Although autonomous vehicles rely on advanced sensors and on-board computing systems to navigate without human control, full awareness of the driving environment also requires a cooperative effort via Vehicle-to-Everything (V2X) communication. Specifically, vehicles send and receive sensor observations to/from other vehicles to extend perception beyond their own sensing range. However, transmitting large volumes of data can be challenging for current V2X communication technologies, so data compression represents a crucial solution to reduce the message size and link congestion. In this paper, we present a statistical characterization of automotive data, focusing on Light Detection and Ranging (LiDAR) sensors. Notably, we provide models for the size of both raw and compressed point clouds. The use of statistical traffic models offers several advantages compared to using real data, such as faster simulations, reduced storage requirements, and greater flexibility in the application design. Furthermore, statistical models can be used for understanding traffic patterns and analyzing statistics, which is crucial to design and optimize wireless networks. We validate our statistical models via a Kolmogorov-Smirnoff (KS) test implementing a Bootstrap Resampling scheme. Moreover, we show via ns-3 simulations that using statistical models yields results in terms of latency and throughput that are comparable to real data, which also demonstrates the accuracy of the models.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13090-13106"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Control-Assisted Beam Prediction and Tracking for UAV Millimeter Wave Communications 无人机毫米波通信控制辅助波束预测与跟踪

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3668082

Jianjun Zhang;Yongming Huang;Jiaheng Wang;Christos Masouros;Xiaohu You

{"title":"Control-Assisted Beam Prediction and Tracking for UAV Millimeter Wave Communications","authors":"Jianjun Zhang;Yongming Huang;Jiaheng Wang;Christos Masouros;Xiaohu You","doi":"10.1109/TWC.2026.3668082","DOIUrl":"10.1109/TWC.2026.3668082","url":null,"abstract":"In recent years, the unmanned aerial vehicle (UAV) communications have become an important part of the space-air-ground integrated network. Unfortunately, the high mobility, as well as perturbation, of UAV poses a great challenge in aligning narrow high-gain beams between the UAV and base station (BS). To tackle this challenging issue, we propose efficient beam prediction and tracking solutions from the perspective of control in this paper. First of all, for an important and typical flight mode in practice (i.e., the mission flight mode - to assign a series of targets in advance and fly from one target to the next one in turn), we study in depth the underlying control principle and reveal important properties and relationships between beam direction and controlled variables. Then, to exploit the properties and relationships revealed, we propose an efficient learning-based beam prediction and tracking solution. Specifically, we develop an efficient learning model, together with offline training and online inference algorithms. To further reduce the computational complexity, we distinguish two kinds of beam offsets and prove an important property of the mission flight mode, i.e., a multicopter almost keeps fixed attitude and velocity in most part of a flight process, based on which an efficient algorithm is designed. Comprehensive experiment results from open-source software, hardware and real UAV confirm the effectiveness of our control-assisted approach.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13121-13135"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Cell-Free Massive MIMO-Assisted SWIPT Using Stacked Intelligent Metasurfaces 使用堆叠智能元表面的无细胞大规模mimo辅助SWIPT

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3668904

Thien Duc Hua;Mohammadali Mohammadi;Hien Quoc Ngo;Michail Matthaiou

{"title":"Cell-Free Massive MIMO-Assisted SWIPT Using Stacked Intelligent Metasurfaces","authors":"Thien Duc Hua;Mohammadali Mohammadi;Hien Quoc Ngo;Michail Matthaiou","doi":"10.1109/TWC.2026.3668904","DOIUrl":"10.1109/TWC.2026.3668904","url":null,"abstract":"This study explores a next-generation multiple access (NGMA) framework for cell-free massive MIMO (CF-mMIMO) systems enhanced by stacked intelligent metasurfaces (SIMs), aiming to improve simultaneous wireless information and power transfer (SWIPT) performance. A fundamental challenge lies in optimally selecting the operating modes of access points (APs) to jointly maximize the received energy and satisfy spectral efficiency (SE) quality-of-service constraints. Practical system impairments, including a non-linear harvested energy model, pilot contamination (PC), channel estimation errors, and reliance on long-term statistical channel state information (CSI), are considered. We derive closed-form expressions for both the achievable SE and the average sum harvested energy (sum-HE). A mixed-integer non-convex optimization problem is formulated to jointly optimize the SIM phase shifts, APs mode selection, and power allocation to maximize average sum-HE under SE and average harvested energy constraints. To solve this problem, we propose a centralized training, decentralized execution (CTDE) framework based on deep reinforcement learning (DRL), which efficiently handles high-dimensional decision spaces. A Markovian environment and a normalized joint reward function are introduced to enhance the training stability across on-policy and off-policy DRL algorithms. Additionally, we provide a two-phase convex-based solution as a theoretical robust performance. Numerical results demonstrate that the proposed DRL-based CTDE framework achieves SWIPT performance comparable to convexification-based solution, while significantly outperforming baselines.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13056-13072"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11421484","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147360953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Task-Specific Resource Orchestration for Effective Concurrent Heterogeneous Task Completion in ISCC Systems ISCC系统中有效并发异构任务完成的任务特定资源编排

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3668216

Yu Ding;Yangting Chen;Weidang Lu;Nan Zhao;Xianbin Wang

{"title":"Task-Specific Resource Orchestration for Effective Concurrent Heterogeneous Task Completion in ISCC Systems","authors":"Yu Ding;Yangting Chen;Weidang Lu;Nan Zhao;Xianbin Wang","doi":"10.1109/TWC.2026.3668216","DOIUrl":"10.1109/TWC.2026.3668216","url":null,"abstract":"Effective provision of integrated sensing, communication, and computation (ISCC) services in future networks will inevitably increase their operational complexity. The distinct requirements of diverse tasks for tailored ISCC devices further exacerbate the challenge of adaptively allocating constrained resources among concurrent tasks. To address these difficulties, a task-specific joint resource orchestration scheme is proposed in this paper to enhance the effectiveness of ISCC operation and heterogeneous tasks completion. Specifically, the completion of concurrent heterogeneous tasks by different devices relies on the task-specific sharing of limited resource among sensing, real-time data computing and delay-tolerant data processing. Consequently, a value of multi-task completion (VoC) indicator is designed to connect and balance among the diverse demands from concurrent tasks, including computing rate, time delay, and sensing performance. The VoC is then maximized by collaborative optimization of multi-dimensional resources, including transmit beamformer, local and offloading CPU-cycle frequency, data factor assignment and computation capacity. To solve this challenging optimization problem with the lack of close-form solution and coupling of multi-variables, we first transform it into an equivalent form that is tractable to handle. Next, the problem is decomposed into several subproblems, which can be approximately solved by iterative updates. Simulation results demonstrate the performance enhancement of the proposed scheme is superior to the benchmarks.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13136-13149"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147361074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Weighted Centroid Localization in Cell-Free mMIMO: A Stochastic Geometry Perspective 基于随机几何视角的无单元mimo加权质心定位

IF 10.7 1区计算机科学

IEEE Transactions on Wireless Communications Pub Date : 2026-03-04 DOI: 10.1109/TWC.2026.3668077

Enrico Testi;Andrea Giorgetti;Giuseppe Caire

{"title":"Weighted Centroid Localization in Cell-Free mMIMO: A Stochastic Geometry Perspective","authors":"Enrico Testi;Andrea Giorgetti;Giuseppe Caire","doi":"10.1109/TWC.2026.3668077","DOIUrl":"10.1109/TWC.2026.3668077","url":null,"abstract":"This paper investigates the use of the weighted centroid localization (WCL) method for user localization in cell-free massive MIMO (CF-mMIMO) networks. This low-complexity algorithm operates solely on received power measurements from pilot transmissions, requiring no prior channel information or estimation. It enables coarse localization, which is valuable for various network management tasks while incurring minimal cost and overhead. Using a stochastic geometry-based analytical framework, we derive approximations for the localization mean-square error, providing insights into the performance and limitations of WCL. We also present an exact expression for the localization error cumulative distribution function, along with alternative approximations based on moment matching. The predictive capability of the proposed analytical framework is validated through extensive simulations that incorporate key practical impairments, such as multipath propagation, spatially correlated shadowing, and pilot contamination, that are analytically intractable. These results confirm the practical utility of our analysis in supporting the design of CF-mMIMO networks to meet specific localization performance targets.","PeriodicalId":13431,"journal":{"name":"IEEE Transactions on Wireless Communications","volume":"25 ","pages":"13042-13055"},"PeriodicalIF":10.7,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147361071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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