Results 101 to 110 of about 7,314 (217)

Simulation Tool and Online Demonstrator for CDMA-Based Ultrasonic Indoor Localization Systems. [PDF]

open access: yesSensors (Basel), 2022
Pérez-Rubio MC   +7 more
europepmc   +1 more source

Esquemas de pré-codificação IA com IB-DFE para sistemas MC-CDMA [PDF]

open access: yes, 2013
Mestrado em Engenharia Eletrónica e TelecomunicaçõesTo achieve high bit rates, needed to meet the quality of service requirements of future multimedia applications, multi-carrier code division multiple access (MC-CDMA) has been considered as a candidate ...
Moreira, José Eduardo Leal
core  

Slow Frequency Hopping Assisted MC DS-CDMA using Large Area Synchronised Spreading Sequences

open access: yes, 2005
The family of Multi-Carrier Direct-Sequence CDMA (MC DS- CDMA) systems exhibits numerous attractive properties, which render them attractive candidates for next-generation wireless communications.
Hanzo, L., Wei, H, Yang, L-L.
core  

Broadband MC DS-CDMA Using Space-Time and Frequency-Domain Spreading

open access: yes, 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  

Adaptive Channel-Tracking Method and Equalization for MC-CDMA Systems over Rapidly Fading Channel under Colored Noise

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
A recursive maximum-likelihood (RML) algorithm for channel estimation under rapidly fading channel and colored noise in a multicarrier code-division multiple-access (MC-CDMA) system is proposed in this paper. A moving-average model with exogenous input (
Chen Bor-Sen, Yang Chang-Yi
doaj  

Blind channel estimation for the uplink of MC-CDMA systems with timing offset

open access: yesTongxin xuebao, 2007
A new blind channel estimation scheme was proposed for the uplink of multicarrier code-division multiple ac-cess(MC-CDMA) systems with timing offset(TO).The scheme can cancel TO effects on the channel estimation,and thus work well without synchronizing ...
WU Hai-feng   +2 more
doaj   +2 more sources

LOCATE-US: Indoor Positioning for Mobile Devices Using Encoded Ultrasonic Signals, Inertial Sensors and Graph-Matching. [PDF]

open access: yesSensors (Basel), 2021
Gualda D   +8 more
europepmc   +1 more source

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