Results 41 to 50 of about 3,134,060 (181)
Timing-Free Blind Multiuser Detection for Multicarrier DS/CDMA Systems with Multiple Antennae
EURASIP Journal on Advances in Signal Processing, 2004 The problem of blind multiuser detection for an asynchronous multicarrier DS-CDMA system employing multiple transmit and receive antennae over a Rayleigh fading channel is considered in this paper. The solutions that we develop require prior knowledge of
Stefano Buzzi +2 more
doaj +1 more source
A Knowledge Service System for Foundation Pit Engineering Based on LoRA and RAG
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.Foundation pit engineering involves a complex system of technical standards. Yet practitioners often struggle to retrieve relevant provisions and interpret them efficiently during construction decision‐making. To address these challenges, this paper presents a knowledge service system that integrates low‐rank adaptation (LoRA) with retrieval‐augmented ...
Shuqin Shi +6 more
wiley +1 more source
Deep Learning‐Based Passive Localization System Using Radio Tomography Images and Wi‐Fi RSSI
International Journal of Distributed Sensor Networks, Volume 2026, Issue 1, 2026.Passive localization is an important technology within Internet of Things (IoT) applications that allows for tracking and monitoring of people without needing active transmitters. This feature proves useful in privacy‐conscious areas like security and healthcare, where active tracking or wearable devices are not practicable.
Muhammad Jabbar +3 more
wiley +1 more source
Semi-Blind and Group-Blind Multiuser Detection for the MC-CDMA Uplink
, 2004 In this contribution both semi-blind and group blind multiuser detectors designed for uplink MCCDMA systems are investigated in conjunction with different spreading codes.
Wei, H., Hanzo, L.
core +1 more source
Blind Direct Multiuser Detection for Uplink MC-CDMA: Performance Analysis and Robust Implementation
EURASIP Journal on Wireless Communications and Networking, 2004 We consider the problem of blind (i.e., without training sequences) linear mitigation of multiple-access interference in the uplink of quasi-synchronous multicarrier code-division multiple-access (MC-CDMA) systems.
Gelli Giacinto +2 more
doaj +2 more sources
A multidimensional phase-locked loop for blind multiuser detection [PDF]
IEEE Transactions on Signal Processing, 2002 This paper concerns the problem of blind multiuser detection, a special case of the blind source separation problem in which the source signals have finite alphabets. Specifically, we address the problem of identifying and resolving the n/spl times/n unitary matrix ambiguity U that results from whitening the receiver observations, where n is the number
John R. Barry, Anuj Batra
openaire +2 more sources
Optical Neuromorphic Technology Catalyzes the Next‐Generation Mobile Communication Technology
Advanced Intelligent Systems, Volume 7, Issue 11, November 2025.Advancements in optical computing could revolutionize next‐generation wireless communication. The review highlights the role of photonic integrated circuits in implementing neural network operations and discusses their benefits, such as high computational density.
Xiaoxiong Song +6 more
wiley +1 more source
British Journal of Pharmacology, Volume 182, Issue 19, Page 4535-4552, October 2025.Background and Purpose Although perivascular adipose tissue (PVAT) contains substances with contractile properties, its actions on the vascular tone are associated with the release of anticontractile substances. We hypothesize that procontractile PVAT products also exert direct effects on vascular tone. Experimental Approach Thoracic aortas from Wistar
Leonardo Gomes‐Pereira +1 more
wiley +1 more source
Direct blind multiuser detection without channel estimation and equalizer design
Tongxin xuebao, 2005 The blind equalization and multiuser detection problem for synchronous high-rate DS-CDMA systems in dispersive channels was considered. Using only the spreading code of the desired user and the property that the transmitted signals belong to the finite ...
ZHANG Zhi-yong1, LING Yun2
doaj +2 more sources