Results 61 to 70 of about 5,755 (223)

General Signal Model for Multiple-Input Multiple-Output GMTI Radar

open access: yesSensors, 2018
Multiple-input multiple-output (MIMO) ground moving target indication (GMTI) radar has been studied recently because of its excellent performance. In this paper, a general signal model is established for the MIMO GMTI radar with both fast-time and slow ...
Fuyou Li   +4 more
doaj   +1 more source

Antenna-Diversity-Assisted Genetic-Algorithm-Based Multiuser Detection Schemes for Synchronous CDMA Systems [PDF]

open access: yes, 2003
A spatial diversity reception assisted multiuser code-division multiple-access detector based on genetic algorithms (GAs) is proposed. Two different GA-based individual-selection strategies are considered. In our first approach, the so-called individuals
Hanzo, L., Yen, K.
core  

Transmitter-preprocessing-assisted cooperative downlink transmission in DS-CDMA systems experiencing propagation path loss and Nakagami-m fading [PDF]

open access: yes, 2009
In this contribution we propose and investigate a relay diversity transmission scheme for the direct-sequence code-division multiple-access (DS-CDMA) downlink, where each (destination) mobile terminal (MT) is aided by a cluster of relays for achieving ...
Yang, Lie-Liang, Fang, Wei, Hanzo, Lajos
core   +1 more source

Enhance Capacity Region of Multi‐Class IIoT Network by Applying Entanglement Assistance Protocol

open access: yesIET Quantum Communication, Volume 6, Issue 1, January/December 2025.
ABSTRACT In the Industrial Internet of Things (IIoT) context, heterogeneous IIoT nodes need diverse performance requirements, including throughput and quality of service (QoS). These IIoT nodes transmit data over a common shared communication medium. The existing critical challenge arises in efficiently scheduling access to this shared medium among a ...
Doaa Subhi, Laszlo Bacsardi
wiley   +1 more source

Block-Adaptive Kernel-Based CDMA Multiuser Detector [PDF]

open access: yes, 2002
The paper investigates the application of a recently introduced learning technique, called the relevance vector machine (RVM) to construct a block-adaptive kernel-based nonlinear multiuser detector (MUD) for direct-sequence code-division multiple-access (
Hanzo, L., Chen, S.
core  

Enhanced performance of secondary surveillance radar system in dense UAV environments using CDMA techniques

open access: yesIET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
In future battlefield scenarios, the existing secondary radar systems are confronted with the problem of excessive platform density. This paper explores integrating CDMA technology with the ALOHA algorithm to increase the target identification probability and shorten the target identification time.
Haonan Chen, Rui Guo, Zengping Chen
wiley   +1 more source

Reconfigurable Signal Processing and Hardware Architecture for Broadband Wireless Communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
This paper proposes a broadband wireless transceiver which can be reconfigured to any type of cyclic-prefix (CP) -based communication systems, including orthogonal frequency-division multiplexing (OFDM), single-carrier cyclic-prefix (SCCP) system ...
Liang Ying-Chang   +3 more
doaj   +2 more sources

Distributed arbitration scheme for on‐chip CDMA bus with dynamic codeword assignment

open access: yesETRI Journal, 2020
Several code‐division multiple access (CDMA)‐based interconnect schemes have been recently proposed as alternatives to the conventional time‐division multiplexing bus in multicore systems‐on‐chip.
Tatjana R. Nikolic   +2 more
doaj   +1 more source

Performance of Generalized Multicarrier DS-CDMA over Nakagami-$m$ Fading Channels [PDF]

open access: yes, 2002
A class of generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) schemes is defined and its performance is considered over multipath Nakagamifading channels. The spacing between two adjacent subcarriers of the generalized MC
Yang, L-L., Hanzo, L.
core  

A Novel Hybrid Path Loss Prediction Model for 5G Midband Networks Using Empirical, Machine Learning, and Feature Prioritization Techniques

open access: yesInternational Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.
Accurate path loss prediction is vital for 5G deployment, especially at midband frequencies where signal degradation is significant. This paper presents a hybrid model that integrates an optimized COST‐231 Hata model with a random forest algorithm to improve prediction accuracy at 3.5 GHz.
Farouq E. Shaibu   +6 more
wiley   +1 more source

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