Results 261 to 270 of about 244,698 (338)
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Spread-time code division multiple access

IEEE Global Telecommunications Conference GLOBECOM '91: Countdown to the New Millennium. Conference Record, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pedro M. Crespo   +2 more
openaire   +1 more source

One-to-many optical information encryption transmission method based on temporal ghost imaging and code division multiple access

Photonics Research, 2019
A method is presented for one-to-many information encryption transmission by using temporal ghost imaging and code division multiple access. In the encryption transmission process, code division multiple access technologies combine multiple information ...
Yi Kang   +6 more
semanticscholar   +1 more source

Code division multiple access using Hermitean codes

Proceedings of 6th International Symposium on Personal, Indoor and Mobile Radio Communications, 2002
Reed-Solomon (RS) codes present some desirable properties that make them useful in the generation of hopping sequences, for frequency hopping code division multiple access (FH CDMA). The algebraic geometric codes include the RS codes as a special case, therefore it is natural to propose the former as a candidate to FH CDMA.
Francisco M. Assis, Marcelo S. Alencar
openaire   +1 more source

Code Division Multiple Access

2002
As already described in section 2.2.3, a direct sequence SS system can provide code division multiple access. This is performed by assigning each user a different code for the spectrum spreading process. Under ideal conditions and if these codes are chosen properly, there will be negligible interference between different users despite the fact that ...
Andreas Springer, Robert Weigel
openaire   +1 more source

Coded multicarrier code division multiple access

Proceedings of 1995 IEEE International Symposium on Information Theory, 2002
This paper presents a multicarrier signaling technique for an asynchronous direct sequence (DS) code division multiple access (CDMA) system which employs linear convolutional codes to achieve performance gains in excess of path diversity gains realized in conventional single carrier RAKE DS CDMA systems.
D.N. Rowitch, L.B. Milstein
openaire   +1 more source

Collaborative Reader Code Division Multiple Access in the Harmonic RFID System

IEEE Journal of Radio Frequency Identification, 2018
Reading reliability is a critical aspect in the ultrahigh-frequency radio frequency identification (RFID) system when a large amount of tags are in the reading zone with complex multi-path interferences. The read failure incidences can be caused not only
Xiaonan Hui, E. Kan
semanticscholar   +1 more source

code-division multiple access

2011
Multiple access is the ability of many users to communicate with each other while sharing a common transmission medium. Wireless multiple-access communications are facilitated if the transmitted signals are orthogonal or separable in some sense. Signals may be separated in time (time-division multiple access or TDMA), frequency (frequency-division ...
openaire   +2 more sources

Independent Code Division Multiple Access in DS-CDMA

Wireless Personal Communications, 2021
An independent component analysis (ICA) based CDMA receiver is proposed, which in addition to the independence of users also exploits the independence of pseudo-codes in user signal separation. The proposed scheme is termed as independent code division multiple access in contrast to orthogonal code division multiple access being used in conventional ...
Irfan Anjum   +2 more
openaire   +1 more source

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