Results 101 to 110 of about 23,651 (213)
CDMA Transmission with Complex OFDM/OQAM
EURASIP 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
Improved Frequency Sweep Keying CDMA Using Faster R-CNN for Extended Ultrasonic Crosstalk Reduction. [PDF]
Sensors (Basel), 2023 Park GR, Park SH, Baek KR.
europepmc +1 more source
PERFORMANSI JARINGAN CODE DIVISION MULTIPLE ACCESS (CDMA) MENGGUNAKAN MOBILE PHONE JAMMER
SISTEM Jurnal Ilmu Ilmu Teknik, 2020 The use of communication tools in some places can be disturb to many people, for example in place of worship and a meeting room. It can be prevented by using a device called a mobile phone jammer. Use of Mobile Phone Jammer can jamming the mobile station signals (CDMA and GSM) both uplink and downlink with the workings of the mobile phone jammer ...
openaire +1 more source
Symbol and Bit Error Rates Analysis of Hybrid PIM-CDMA
EURASIP 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
Layered Steered Space–Time-Spreading-Aided Generalized MC DS-CDMA
, 2010 —We present a novel trifunctional multiple-input– multiple-output (MIMO) scheme that intrinsically amalgamates space–time spreading (STS) to achieve a diversity gain and a Vertical Bell Labs layered space–time (V-BLAST) scheme to attain a multiplexing ...
Alamri, Osamah +3 more
core +1 more source
An Efficient Code-Timing Estimator for DS-CDMA Systems over Resolvable Multipath Channels
EURASIP 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
Advanced multiple access concepts in mobile satellite systems [PDF]
Some multiple access strategies for Mobile Satellite Systems (MSS) are discussed. These strategies were investigated in the context of three separate studies conducted for the International Maritime Satellite Organization (INMARSAT) and the European ...
Ananasso, Fulvio
core +1 more source
A Comparison of CDMA and Frequency Hopping in a Cellular Environment [PDF]
, 1992 This paper compares the performances of direct sequence code division multiple access (CDMA) and frequency hopping (FH) schemes in a cellular multiuser environment.
Mandell, Michael I., McEliece, Robert J.
core +1 more source
Strategy for Non-Orthogonal Multiple Access and Performance in 5G and 6G Networks. [PDF]
Sensors (Basel), 2023 Al-Dulaimi OMK +3 more
europepmc +1 more source