Results 111 to 120 of about 5,755 (223)

An Efficient Code-Timing Estimator for DS-CDMA Systems over Resolvable Multipath Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
We consider the problem of training-based code-timing estimation for the asynchronous direct-sequence code-division multiple-access (DS-CDMA) system. We propose a modified large-sample maximum-likelihood (MLSML) estimator that can be used for the code ...
Li Jian, Liu Jianhua
doaj   +1 more source

Network Performance of Asynchronous UTRA-like FDD/CDMA Systems using Loosely Synchronised Spreading Codes [PDF]

open access: yes, 2003
In this paper we characterize the capacity of a UTRA-like Frquency Division Duplex (FDD) Code Division Multiple Access (CDMA) system employing Loosely Synchronized (LS) spreading codes.
Blogh, J.S., Ni, S., Hua, W., Hanzo, L.
core  

Ant-colony-based multiuser detection for multifunctional-antenna-array-assisted MC DS-CDMA systems [PDF]

open access: yes, 2008
A novel Ant Colony Optimization (ACO) based Multi-User Detector (MUD) is designed for the synchronous Multi-Functional Antenna Array (MFAA) assisted Multi-Carrier Direct-Sequence Code-Division Multiple-Access (MC DS-CDMA) uplink (UL), which supports both
Xu, C., Yang, L-L., Hanzo, L., Hu, B.
core  

Improving multi access interference suppression in optical CDMA by using all-optical signal processing [PDF]

open access: yes, 2013
This paper presents the study of a novel alloptical method for processing optical CDMA signals towards improving suppression of multi access interference.
Glesk, Ivan   +5 more
core  

ENHANCEMENT OF CODE DIVISION MULTIPLE ACCESS (CDMA) WITHIN THE GSM SYSTEM IN IRAQ

open access: yesKufa Journal of Engineering
Despite the widespread adoption of Global System for Mobile Communications (GSM) in Iraq, the network's capacity and performance limitations have become increasingly apparent, particularly in urban areas with high user density. Currently, LTE (4G) is the dominant mobile technology in Iraq, provides faster data speeds, improved coverage, and enhanced ...
openaire   +1 more source

Path loss model optimization for urban outdoor coverage using Code Division Multiple Access (CDMA) system at 822MHZ [PDF]

open access: yes, 2012
The study of this work is to develop an optimized path loss model for urban coverage in Code Division Multiple Access (CDMA) system based on the existing models and empirical measurements.
Lee, Yih Pey, Mardeni, R.
core  

Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]

open access: yesSensors (Basel), 2023
Al-Dulaimi OMK   +3 more
europepmc   +1 more source

Analytical Bit Error Rate Performance of DS-CDMA Ad Hoc Networks using Large Area Synchronous Spreading Sequences [PDF]

open access: yes, 2007
The performance of large area synchronous (LAS) direct sequence code division multiple access (DS-CDMA) assisted ad hoc networks is investigated in the context of a single-hop infinite mesh of rectilinearly located ad hoc nodes.
Wei, H., Liu, X., Hanzo, L.
core  

Analysis of Handover Planning in Wideband Code Division Multiple Access (W–CDMA) [PDF]

open access: yesJournal of Engineering and Applied Sciences, 2019
Win Adiyansyah Indra   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy