multiple access spread spectrum
The Probability of Multiple Correct Packet Reception in Coded Synchronous Frequency Hopped Spread Spectrum Networks
... slotted multiple access spread-spectrum networks, this quantity has been evaluated approximately for various cases, for example, in the analysis by Polydoros and Silvester ...frequency-hopped ...
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Overlapping M ary Frequency Shift Keying Spread Spectrum Multiple Access Systems using Random Signature Sequences
... a multiple-access spread-spectrum communication system using binary frequency shift keying (BFSK) or M-ary frequency shift keying (MFSK) and noncoherent demodulation is ...a ...
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Modeling and Simulation of CDMA Codes in Scilab
... conventional access methods, Time Division Multiple Access (TDMA) and Frequency Division Multiple Access (FDMA), the CDMA has three mainly advantages: it is a multiplexing scheme based ...
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Residue Number System Assisted Fast Frequency Hopped Synchronous Ultra Wideband Spread Spectrum Multiple Access: A Design Alternative to Impulse Radio
... Abstract—Ultra-wideband (UWB) systems having a bandwidth on the order of gigahertz have recently received wide attention both in the U.S. and in Europe. The family of UWB systems may communicate either by generating ...
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Carrier Inferrometric Code Based Variable Rate Transmission Schemes for Satellite Communication System
... communication, spread spectrum communication has also been widely used in satellite communication ...Division Multiple Access (MC-CDMA) is a promising approach to the challenge of providing ...
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Spread Spectrum Sensing Techniques for Transformer Frequency Response Data
... channels, spread spectrum is proposed in the literature [3]. Spread spectrum can be defined as a modulation technique in which pseudo-random sequence is used in expanding the actual bandwidth ...
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Medium Access in Spread-Spectrum Ad Hoc Networks with Multiuser Detection
... is, multiple data blocks are transmitted simultaneously by multiple nodes within a certain finite duration and are processed at the same ...among multiple packets, as illustrated in the upper part of ...
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Unified Multiple-Access Performance Analysis of Several Multirate Multicarrier Spread-Spectrum Systems
... paper is the one described in [12,13], wherein the fre- quency spacing between diversity hopping subcarriers in distinct frequency subbands is implemented in such a way as to diminish the correlation of fading gains on ...
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Modeling Simulation and Performance Analysis of PAPR in FBMC 5G System
... division) Multiple access), just combine DFT (Discrete Fourier Transform) Spread spectrum and FBMC-OQAM (filter bank multi-carrier With offset quadrature amplitude modulation) only leads to ...
5
Using chaotic sequence in direct sequence spread spectrum based on code division multiple access (DS CDMA)
... have spread and flat spectrum in the frequency domain, it is advantageous to carry messages with this kind of signal that is wide band and has high communication ...
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A joint adaptive MMSE downlink receiver
... Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this ...
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Broadband Internet Access in Regional Australia
... without spread spectrum (SS) technology. The principle of spread spectrum technology is to spread the information to be transmitted over a much wider bandwidth than is necessary, with a ...
10
Dynamic spectrum sharing by opportunistic spectrum access with spectrum aggregation
... Regarding spectrum handoff occurring due to PU transmission, the PU appearance should be detected accurately to trigger spectrum ...and spectrum sensing, spectrum sensing is mostly considered ...
132
Spectrum prediction in dynamic spectrum access systems
... local spectrum modelling ...cooperative spectrum prediction is limited, and only a few address cooperative SOP based on soft fusion ( SF ...for multiple PU ...
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COPYRIGHT Danish Standards Foundation. NOT FOR COMMERCIAL USE OR REPRODUCTION. DS/ISO/IEC :2012
... ISO/IEC 24730-2 is comprised of a main document and two additional parts, ISO/IEC 24730-21 and ISO/IEC 24730-22, and defines a networked location system that provides X-Y coordinates and data telemetry. The system ...
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Multiuser Detection Assisted Time and Frequency Domain Spread Multicarrier Code Division Multiple Access
... TF-domain spread MC DS-CDMA signals by invoking various detection ...TF-domain spread MC DS-CDMA and conventionalsingle- carrier DS-CDMA [20] using solely T-domain spreading, as well as that of conventional ...
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Novel Attacks on Spread-Spectrum Fingerprinting
... Gaussian, spread-spectrum fingerprinting, where each user is identified by a random, Gaussian signal which is added to the copyrighted file (host ...
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Secure Spread Spectrum Watermarking for Telemedicine Applications
... applying spread-spectrum watermarking which can be easily un- derstood with spread-spectrum communications analogy in which frequency domain of the image is viewed as a communication channel, ...
8
Detection of direct sequence spread spectrum signals
... sequence spread spectrum (DSSS) signaling, where codes are used to communicate secretly ...to spread the transmitted signal over a wide bandwidth, enabling communication at power levels below the ...
204
PERFORMANCE STUDY OF AIR INTERFACE FOR BROADBAND WIRELESS PACKET ACCESS PENG XIAOMING
... block spread interleaved frequency division multiple access (BS-IFDMA) scheme has been formulated to use this additional domain to support more users on top of the IFDMA ...allocating multiple ...
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