Results 71 to 80 of about 23,563 (255)

Dynamic and efficient device collaborations in 5G‐advanced and 6G networks

open access: yesIET Communications, Volume 18, Issue 19, Page 1437-1450, December 2024.
Collaborative transmission, comprising multiple devices owned by a single user, is progressively evolving into an essential strategy to meet the stringent demands of burgeoning collaborative scenarios in 5G‐advanced and 6G networks. This paper proposes three novel use cases for device collaboration, namely data duplication, data splitting and wireless ...
Xianghui Han   +5 more
wiley   +1 more source

Adaptive Transmitter Precoding for Time Division Duplex CDMA in Fading Multipath Channels: Strategy and Analysis

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
The recently developed blind adaptive techniques for multiuser detection in code division multiple access (CDMA) systems offer an attractive compromise of performance and complexity.
Høst-Madsen Anders   +2 more
doaj   +1 more source

Enhanced overloaded code division multiple access for network on chip

open access: yesIET Computers & Digital Techniques, 2022
The Code‐division multiple access (CDMA) method is commonly used as the network infrastructure in multi‐core chips. One of its advantages is the simultaneous connection of all network components. Another advantage is the constant delay of this method. On
Behnam Vakili, Morteza Gholipour
doaj   +1 more source

An iterative frequency-domain decision-feedback receiver for MC-CDMA schemes [PDF]

open access: yes, 2005
The MC-CDMA techniques (multicarrier code division multiple access) combine a CDMA scheme with OFDM modulation (orthogonal frequency division multiplexing), so as to allow high transmission rates over severely time-dispersive channels without the need of
Dinis, Rui   +2 more
core   +1 more source

Time transfer via single‐record TDoA measurements of GNSS satellites using direct cross‐correlation and relative pilot code phases

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2447-2453, December 2024.
A method is presented to passively synchronise data records via GNSS raw signals in a single record requiring only a GNSS antenna, an analogue‐to‐digital converter and computation hardware. The clock bias is estimated via the common view method with either full raw signal correlation or software‐based code correlation of individual signals from the GPS,
Erik Busley   +3 more
wiley   +1 more source

Comparison of CDMA and FDMA for the MobileStar(sm) system [PDF]

open access: yes
Spread-spectrum code division multiple access (CDMA) and single channel per carrier frequency division multiple access (FDMA) systems are compared for spectrum efficiency.
Gilhousen, K. S.   +4 more
core   +1 more source

Dimmable constant weight polar‐coded non‐orthogonal multiple access with orthogonal space‐time block coding visible light communication systems

open access: yesIET Communications, Volume 18, Issue 17, Page 1071-1078, October 2024.
The study integrates dimmable constant weight polar‐coded non‐orthogonal multiple access (CWPC‐NOMA) with orthogonal space‐time block coding (OSTBC) for visible light communication (VLC). The proposed scheme enhances spectral efficiency and reliability while optimizing resource utilization and leveraging transmit diversity.
Oluwaseyi Paul Babalola, Vipin Balyan
wiley   +1 more source

Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels

open access: yes, 2001
A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Hanzo, L., Yang, L-L.
core  

IB-DFE receiver techniques for CP-assisted block transmission within DS-CDMA and MC-CDMA systems [PDF]

open access: yes, 2008
MC-CDMA (MultiCarrier Code Division Multiple Access), currently regarded as a promissing multiple access scheme for broadband communications, is known to combine the advantages of an OFDM-based (Orthogonal Frequency Division Multiplexing), CP ...
Dinis, Rui   +2 more
core  

Analysis of CDMA systems that are characterized by eigenvalue spectrum

open access: yes, 2006
An approach by which to analyze the performance of the code division multiple access (CDMA) scheme, which is a core technology used in modern wireless communication systems, is provided.
Ciliberti S.   +16 more
core   +1 more source

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