Results 171 to 180 of about 70,898 (211)
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Hybrid ISMA/CDMA and CDMA/ISMA protocols for IWCC
Proceedings of ICUPC '95 - 4th IEEE International Conference on Universal Personal Communications, 2002This paper presents a novel multiple access scheme, which is a combination of inhibit sense multiple access (ISMA) and code division multiple access (CDMA), for the indoor wireless computer communications (IWCC). This new multiple access scheme is called hybrid ISMA/CDMA protocol.
F. Harmsze, R. Prasad
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Annales Des Télécommunications, 1993
The purpose of this paper is to introduce the basic concepts of code division multiple access (cdma) to those who are not familiar with the subject area. It briefly covers the two most important forms of spread spectrum modulation, frequency hopping (fh) and direct sequence (ds), before concentrating on cdma based on ds.
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The purpose of this paper is to introduce the basic concepts of code division multiple access (cdma) to those who are not familiar with the subject area. It briefly covers the two most important forms of spread spectrum modulation, frequency hopping (fh) and direct sequence (ds), before concentrating on cdma based on ds.
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OCDD/CDMA: a new DS/CDMA with orthonormal code diversity detection
IEEE Transactions on Communications, 2001Summary: The paper presents a new spread spectrum communication system called orthonormal code diversity detection (OCDD)/CDMA system based on the novel concept of orthonormal-basis diversity, which is a generalization of the existing spread spectrum diversity concepts such as path diversity and frequency diversity.
Byoung-Hoon Kim, Byeong Gi Lee
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2006 IEEE Ninth International Symposium on Spread Spectrum Techniques and Applications, 2006
As spectrum spreading and CDMA proved themselves as very efficient in radio communication CDMA application in optical communication seamed to be reasonable as well. Research in this field started two decades ago or so and is still flourishing. In this tutorial paper - after giving a brief listing of relevant concepts in optical communications ...
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As spectrum spreading and CDMA proved themselves as very efficient in radio communication CDMA application in optical communication seamed to be reasonable as well. Research in this field started two decades ago or so and is still flourishing. In this tutorial paper - after giving a brief listing of relevant concepts in optical communications ...
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Performance comparison of multiwavelength CDMA and WDMA+CDMA for fiber-optic networks
IEEE Transactions on Communications, 1997A "multiwavelength" scheme has been proposed to support large numbers of subscribers and simultaneous users in optical code-division multiple-access (CDMA) networks without using very large bandwidth expansion or the need of complicated and not-yet-feasible optical processing.
Guu-Chang Yang, Wing C. Kwong
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GDMA, LDS-CDMA, and HDS-CDMA for Uplink Communication Systems
2023 VTS Asia Pacific Wireless Communications Symposium (APWCS), 2023Mao-Chao Lin +3 more
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OFDM-CDMA versus DS-CDMA: performance evaluation for fading channels
Proceedings IEEE International Conference on Communications ICC '95, 2002In code division multiple access (CDMA) systems direct sequence (DS) applying maximum ratio combining (MRC) at the receiver has achieved high interest for mobile communications. A second and rather novel technique is orthogonal frequency division multiplexing (OFDM) applying maximum-likelihood detection (MLD) at the receiver.
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An Overview of CDMA: Towards Wideband CDMA.
IEEE Commun. Surv. Tutorials, 2020Ramjee Prasad, Tero Ojanperä
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