Results 71 to 80 of about 70,898 (211)
Broadband MC DS-CDMA Using Space-Time and Frequency-Domain Spreading
, 2002 In this contribution multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) using space-time spreading (STS) assisted transmit diversity and frequency-domain (F-domain) spreading is investigated in the context of broadband communications
Yang, L-L., Hanzo, L.
core
Journal of Arrhythmia, Volume 41, Issue 4, August 2025.This study on 13 Cardiac implantable electronic device (CIED) models revealed that surface magnetic fields of tablets, laptops, smartphones, and household magnets exceeded 10 G, potentially triggering magnet response mode. Activation occurred at ≤15 mm for electronic devices and ≤7 mm for household magnets.
Norio Kamitani +11 more
wiley +1 more source
A simulation agent for efficient network evaluation in 3G cellular mobile radio planning
Journal of Computer Science and Technology, 2009 An accurate procedure for evaluating the strong correlation and conflicting goals of coverage, capacity and Quality of Service (QoS) is required for efficient planning of 3G radio networks.
Joseph Isabona +2 more
doaj
Advanced Materials Interfaces, Volume 12, Issue 14, July 25, 2025.This study presents core‐shell Au‐Ag NPs and a novel molecularly imprinted polymer (MIP)‐based material targeting L1CAM. Thionine is used as a monomer to create the MIP on a carbon screen‐printed electrode. Functionalized Au‐AgNCs with Raman reporter 4‐mercaptobenzoic acid and anti‐L1CAM enable selective detection via surface‐enhanced Raman scattering ...
Yuselis Castaño‐Guerrero +6 more
wiley +1 more source
The Alamouti Scheme with CDMA-OFDM/OQAM
EURASIP Journal on Advances in Signal Processing, 2010 This paper deals with the combination of OFDM/OQAM with the Alamouti scheme. After a brief presentation of the OFDM/OQAM modulation scheme, we introduce the fact that the well-known Alamouti decoding scheme cannot be simply applied to this modulation ...
Pierre Siohan +2 more
doaj +1 more source
, 2005 —In multicarrier code-division multiple-access (MCCDMA), the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each subband signal is transmitted using a subcarrier frequency.
Hanzo, L., Yang, L-L.
core
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
, 2007 Burts-by-burst (BbB) adaptive high-speed downlink packet access (HSDPA) style multicarrier systems are reviewed, identifying their most critical design aspects.
Choi, B.J., Hanzo, Lajos
core +1 more source
LAS-CDMA using Various Time Domain Chip-Waveforms
, 2005 LAS CDMA exhibits a significantly better performance than that of classic random code based DS-CDMA, when operating in a quasi-synchronous scenario. Classic frequency-domain raised cosine Nyquist filtering is known to show the best possible performance ...
Hanzo, L., Wei, H.
core +1 more source
Design and Simulation of parallel CDMA System Based on 3D-Hadamard Transform
Diyala Journal of Engineering Sciences, 2013 Future wireless systems aim to provide higher transmission data rates, improved spectral efficiency and greater capacity. In this paper a spectral efficient two dimensional (2-D) parallel code division multiple access (CDMA) system is proposed for ...
Ali T. Shaheen
doaj +1 more source