Results 61 to 70 of about 1,077 (174)

CDMA Transmission with Complex OFDM/OQAM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Lélé Chrislin   +3 more
doaj  

High performance mixed optical CDMA system using ZCC code and multiband OFDM

open access: yesEPJ Web of Conferences, 2017
In this paper, we have proposed a high performance network design, which is based on mixed optical Code Division Multiple Access (CDMA) system using Zero Cross Correlation (ZCC) code and multiband Orthogonal Frequency Division Multiplexing (OFDM) called ...
Nawawi N. M.   +3 more
doaj   +1 more source

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

Symbol and Bit Error Rates Analysis of Hybrid PIM-CDMA

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
A hybrid pulse interval modulation code-division multiple-access (hPIM-CDMA) scheme employing the strict optical orthogonal code (SOCC) with unity and auto- and cross-correlation constraints for indoor optical wireless communications is proposed. In this
Ghassemlooy Z., See C. K.
doaj   +1 more source

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

Experimental study of different turbo coding rates for MIMO-OFDM system

open access: yesJournal of Measurement Science and Instrumentation, 2016
Multi-input multi-output orthogonal frequency division multiplexing(MIMO-OFDM)is the foremost space interface for 4Gand 5Gbroadband wireless communication.MIMO can transmit diverse signals over multiple antennas and OFDM can divide a radio channel into a
Priti Subramanium, Rajeshree D Raut
doaj  

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