Results 71 to 80 of about 23,651 (213)
IET 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
EURASIP 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
Comparison of CDMA and FDMA for the MobileStar(sm) system [PDF]
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
Performance evaluation of channel estimation techniques for a proposed '4G' MC-CDMA based system in a time varying channel [PDF]
, 2004 This paper investigates the performance of channel estimation techniques applied to a proposed fourth generation (4G) multi carrier - code division multiple access (MC-CDMA) system.
Armour, SMD +3 more
core +2 more sources
IET 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
, 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
Performance of asynchronous orthogonal multicarrier CDMA system in frequency selective fading channel [PDF]
, 1999 An asynchronous multicarrier (MC) direct-sequence (DS) code-division multiple-access (CDMA) scheme for the uplink of the mobile communication system operating in a frequency selective fading channel is analyzed.
Ng, TS, Xiang, G
core +1 more source
IET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1474-1480, September 2024.The spatial sensitivity of a machine‐learning‐based coding digital receiving array (ML‐CDRA) is studied which describes the spatial accumulation gain in different directions. It is demonstrated that spatial sensitivity is determined by the encoding network, decoding network, and beamforming criterion.
Lei Xiao, Yubing Han, Shurui Zhang
wiley +1 more source
IB-DFE receiver techniques for CP-assisted block transmission within DS-CDMA and MC-CDMA systems [PDF]
, 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
Data collection in IoT networks: Architecture, solutions, protocols and challenges
IET Wireless Sensor Systems, Volume 14, Issue 4, Page 85-110, August 2024.Current IoT data collection techniques are categorised and a comparative evaluation of these methods is performed based on the topics analysed and elaborated by the authors. In addition, a comprehensive analysis of recent advances in IoT data collection is provided, highlighting different data types and sources, transmission protocols from connected ...
Ado Adamou Abba Ari +6 more
wiley +1 more source