Results 91 to 100 of about 5,465 (214)

Adaptive Subchannel Allocation For Mc-Cdma System

open access: yes, 2007
Multicarrier code-division multiple-access is one of the effective techniques to gain its multiple access capability, robustness against fading, and to mitigate the ISI. In this paper, we propose an improved mulcarrier CDMA system with adaptive subchannel allocation.
Cuiran Li, Jianli Xie, Chengshu Li 0001
openaire   +2 more sources

IMPROVED EXPRESSION FOR THE AVERAGE BEP OF MC-CDMA SYSTEMS WITH MRC DIVERSITY RECEPTION

open access: yesElectrica, 2010
Multi-carrier code division multiple access (MC-CDMA) which is a combination of multicarrier modulation and code division multiple access has gained wide acceptance in recent works because of its many advanced features.
Ibrahim DEVELI
doaj   +2 more sources

Dynamic Adjustment of Weighted GCC-PHAT for Position Estimation in an Ultrasonic Local Positioning System. [PDF]

open access: yesSensors (Basel), 2021
Villadangos JM   +5 more
europepmc   +1 more source

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

Multi-User Detection for Group Orthogonal Multi-Carrier Code Division Multiple Access System in Frequency Selective Rayleigh Fading Channel

open access: yesJournal of Engineering and Sustainable Development, 2008
Code Division Multiple Access (CDMA) suffers from multi-user interference (MUI), and intersymbol interference (ISI) under frequency selective multi-path fading channels. Orthogonal Frequency Division Multiple access (OFDM) is MUI free but achieves lower
Maha George Zia, Harith Akram Nassir
doaj  

Cooperative Power-Domain NOMA Systems: An Overview. [PDF]

open access: yesSensors (Basel), 2022
Ghous M   +5 more
europepmc   +1 more source

Performance Evaluation of MC DS CDMA using Wireless Open Access Research Platform

open access: yesJAREE (Journal on Advanced Research in Electrical Engineering), 2018
The need for reliable wireless communication systems has become an issue of communication technology development in the modern era. Multi Carrier Direct Sequence Code Division Multiple Access (MC-DS-CDMA) communication system offers superiority in ...
Suwadi Suwadi   +4 more
doaj  

DFT-SV-OFDM based adaptive multi-rate DFT scrambling vector code division multiple access

open access: yesTongxin xuebao, 2017
Multipath interference would degrade the performance of multi-rate systems based on OFDM and CDMA,which spectrum efficiency was also lower relatively.To improve the performance and spectrum efficiency,a novel adaptive multi-rate DFT scrambling vector ...
Gao ZHOU, Ping-zhi FAN, Li HAO
doaj   +2 more sources

DE BRUIJN SEQUENCE BASED PEAK POWER CONTROL AND INTERFERENCE MITIGATION IN MC-CDMA SYSTEM [PDF]

open access: yesJournal of Engineering Science and Technology, 2015
In Multicarrier Code Division Multiple Access (MC-CDMA) system, the performance can get degraded due to a high Peak to Average Power Ratio (PAPR) which is equivalent to Peak to Mean Envelope Power Ratio (PMEPR) and Multi Access Interference (MAI).
NOOR MOHAMMED V   +5 more
doaj  

Home - About - Disclaimer - Privacy