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The problem of mobile position estimation in multipath scenarios is addressed. A low-complexity, fully-adaptive algorithm is proposed, based on the pseudo maximum likelihood approach. The processing is done exclusively on-board at the…

Signal Processing · Electrical Eng. & Systems 2019-02-12 Alessio Fascista , Angelo Coluccia , Giuseppe Ricci

We present a message passing algorithm for localization and tracking in multipath-prone environments that implicitly considers obstructed line-of-sight situations. The proposed adaptive probabilistic data association algorithm infers the…

Information Theory · Computer Science 2021-03-26 Alexander Venus , Erik Leitinger , Stefan Tertinek , Klaus Witrisal

Accurate estimation of the Underwater acoustic (UWA) is a key part of underwater communications, especially for coherent systems. The severe multipath effects and large delay spreads make the estimation problem large-scale. The…

Signal Processing · Electrical Eng. & Systems 2023-08-25 Tian Tian , Agastya Raj , Bruno Missi Xavier , Ying Zhang , Feiyun Wu , Kunde Yang

A framework is proposed for developing and evaluating algorithms for extracting multipath propagation components (MPCs) from measurements collected by channel sounders at millimeter-wave frequencies. Sounders equipped with an…

Signal Processing · Electrical Eng. & Systems 2023-10-16 Akbar Sayeed , Damla Guven , Michael Doebereiner , Sebastian Semper , Camillo Gentile , Anuraag Bodi , Zihang Cheng

Achieving ubiquitous high-accuracy localization is crucial for next-generation wireless systems, yet remains challenging in multipath-rich urban environments. By exploiting the fine-grained multipath characteristics embedded in channel…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Tong An , Huan Lu , Jiayang Shi , Kai Yu , Rongrong Zhu , Bin Zheng , Jiwei Zhao , Haibo Zhou

In climate and atmospheric research, many phenomena involve more than one meteorological spatial processes covarying in space. To understand how one process is affected by another, maximum covariance analysis (MCA) is commonly applied.…

Methodology · Statistics 2017-05-09 Wen-Ting Wang , Hsin-Cheng Huang

Movable antenna (MA) is a new technology with great potential to improve communication performance by enabling local movement of antennas for pursuing better channel conditions. In particular, the acquisition of complete channel state…

Information Theory · Computer Science 2023-12-13 Zhenyu Xiao , Songqi Cao , Lipeng Zhu , Yanming Liu , Xiang-Gen Xia , Rui Zhang

We present a factor graph formulation and particle-based sum-product algorithm for robust localization and tracking in multipath-prone environments. The proposed sequential algorithm jointly estimates the mobile agent's position together…

Signal Processing · Electrical Eng. & Systems 2025-04-16 Alexander Venus , Erik Leitinger , Stefan Tertinek , Florian Meyer , Klaus Witrisal

This paper proposes a rate-splitting multiple access (RSMA) transmission scheme to maximize the minimum achievable rate among ground users for emergency communications in post-disaster scenarios with obstacles, with which the optimal…

Information Theory · Computer Science 2025-09-30 Qingyang Wang , Zhuohui Yao , Wenchi Cheng , Xiao Zheng

Accurate channel estimation is essential for reliable communication in sub-THz extremely large (XL) MIMO systems. Deploying XL-MIMO in high-frequency bands not only increases the number of antennas, but also fundamentally alters channel…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Wen-Xuan Long , Marco Moretti , Michele Morelli , Luca Sanguinetti , Rui Chen

Movable antenna (MA) technology offers a flexible approach to enhancing wireless channel conditions by adjusting antenna positions within a designated region. While most existing works focus on narrowband MA systems, this paper investigates…

Signal Processing · Electrical Eng. & Systems 2025-10-03 Ruixi Feng , Weidong Mei , Lele Lu , Xin Wei , Zhi Chen , Zhen Gao , Boyu Ning

In this paper, a multipath component aggregation (MCA) mechanism is introduced for spatial scattering modulation (SSM) to overcome the limitation in conventional SSM that the transmit antenna array steers the beam to a single multipath (MP)…

Information Theory · Computer Science 2023-04-06 Jiliang Zhang , Wei Liu , Alan Tennant , Weijie Qi , Jiming Chen , Jie Zhang

In this paper, we propose first a mmWave channel tracking algorithm based on multidimensional orthogonal matching pursuit algorithm (MOMP) using reduced sparsifying dictionaries, which exploits information from channel estimates in previous…

Signal Processing · Electrical Eng. & Systems 2023-08-29 Yun Chen , Nuria González-Prelcic , Takayuki Shimizu , Hongshen Lu , Chinmay Mahabal

This paper proposes a unified approach to joint adaptive parameter estimation and interference cancellation (IC) for direct sequence code-division-multiple-access (DS-CDMA) systems in multipath channels. A unified framework is presented in…

Information Theory · Computer Science 2013-04-23 Rodrigo C. de Lamare , Are Hjorungnes , Raimundo Sampaio-Neto

This work investigates the problem of spatial covariance matrix estimation in a millimeter-wave (mmWave) hybrid multiple-input multiple-output (MIMO) system with an emphasis on the basis-mismatch effect. The basis mismatch is prevalent in…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Chethan Kumar Anjinappa , Ali Cafer Gurbuz , Yavuz Yapici , Ismail Guvenc

Movable antenna (MA) is a promising technology to improve wireless communication performance by varying the antenna position in a given finite area at the transceivers to create more favorable channel conditions. In this paper, we…

Information Theory · Computer Science 2024-03-26 Lipeng Zhu , Wenyan Ma , Boyu Ning , Rui Zhang

Predicting the long-term behavior of chaotic systems remains a formidable challenge due to their extreme sensitivity to initial conditions and the inherent limitations of traditional data-driven modeling approaches. This paper introduces a…

Machine Learning · Computer Science 2024-10-10 Dibyajyoti Chakraborty , Seung Whan Chung , Ashesh Chattopadhyay , Romit Maulik

This paper addresses the challenge of efficient rendezvous in multihop cognitive radio networks, where existing channel-hopping algorithms designed for single-hop scenarios incur increased delay and coordination inefficiencies in multinode…

Networking and Internet Architecture · Computer Science 2026-05-19 Zahid Ali , Saritha Unnikrishnan , Eoghan Furey , Ian McLoughlin , Saim Ghafoor

The multipath radio channel is considered to have a non-bandlimited channel impulse response. Therefore, it is challenging to achieve high resolution time-delay (TD) estimation of multipath components (MPCs) from bandlimited observations of…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Tarik Kazaz , Gerard J. M. Janssen , Alle-Jan van der Veen

Integrated sensing and communication (ISAC) is emerging as a pivotal technology for next-generation wireless networks. However, existing ISAC systems are based on fixed-position antennas (FPAs), which inevitably incur a loss in performance…

Information Theory · Computer Science 2025-07-14 Jingze Ding , Zijian Zhou , Xiaodan Shao , Bingli Jiao , Rui Zhang
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