spread-spectrum multiple-access system
Modeling and Simulation of CDMA Codes in Scilab
... Prior to hardware implementation, simulation is an important step in the study of systems such as Direct Sequence Code Division Multiple Access (DS-CDMA). A useful technique is presented, al- lowing to ...
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Modeling Simulation and Performance Analysis of PAPR in FBMC 5G System
... FBMC system is based on its evolution Use phase rearrangement (PR) and modified PR (MPR) techniques Used in OFDM ...division) Multiple access), just combine DFT (Discrete Fourier Transform) ...
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Residue Number System Assisted Fast Frequency Hopped Synchronous Ultra Wideband Spread Spectrum Multiple Access: A Design Alternative to Impulse Radio
... As seen in the matrix of Fig. 4 representing the received time-frequency matrix of the three users, the signals marked as circles, triangles and crosses are present at the time-frequency elements corresponding to the ...
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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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Using chaotic sequence in direct sequence spread spectrum based on code division multiple access (DS CDMA)
... chaotic system are it’s sensitively dependence on its initial ...dynamical system is a deterministic system, disguising modulation as noise would easily made upon its random- like behavior [5]? Laxmi ...
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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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Loading characteristics of Gold codes in a spread spectrum system
... division multiple access (IDMA) was proposed in literature [1-4] as an alternative to ...signals, spread out over a ...frequency-division multiple access whose energy is concentrated ...
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Unified Multiple-Access Performance Analysis of Several Multirate Multicarrier Spread-Spectrum Systems
... multicarrier system as a hybrid of the previous two, called DS-MC-FH (Direct-Sequence MC- FH), possessing, as its rst and second signature codes, the kinds of signature in MC-FH and MC-CDMA schemes, ...FH ...
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Design and Implementation of Wireless Gas Meter Reading System Based on Spread Spectrum Communication
... management system stably, but GPRS is one-way communication technology, cannot realize real-time communication function of the gas company, and high cost is unfavorable to ordinary resident user [3] .... ...
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DIFFERENT SPREADING SEQUENCES FOR PERFORMANCE COMPARISON OF DS-SS SYSTEM B Ch Kiran Patrudu*, D.Anil Prasad, B Ravi Kumar
... Spread spectrum techniques have been widely used in wired and wireless ...signal spectrum gives us many advantages such as robustness against interference and noise, low probability of intercept, ...
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Spectrum Sharing in an ISM Band: Outage Performance of a Hybrid DS/FH Spread Spectrum System with Beamforming
... DS/FH system using beamforming, in terms of outage probability and packet error probability, has also been evaluated in this ...dynamic spectrum access system ...
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Volume 3, Issue 2, February 2014 Page 186
... wireless access technology is about to reach its fourth ...Wireless access technology have formed different evolutionary path but with a common aim related to performance and ...and spread ...
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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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Time-slot Assignment based mostly Channel Access theme for Reliable Transmission
... dimensional spread spectrum model which uses chipping sequence for encryption of input ...for spread spectrum watermarking in which they used low intensity and mid intensity reasons for ...
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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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A Comparison of Steganography in the GIF Image using LSB and Spread Spectrum Method
... Analysis: From the results of previous experiments against gif image about how much the message maximum number of characters that can be inserted by the method of Least Significant Bit (LSB) and also the spread ...
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Contemporary Spread Spectrum Techniques: A Comparative Study Ashish G. Nandre 1, Yogesh R. Risodkar2
... In RD- DSSS the sender and the receiver share spreading code set in which there should be low correlation between two codes selected randomly. A sender encodes each bit of data using the correlation of two unpredictable ...
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Frequency Hopping Spread Spectrum Security Improvement with Encrypted Spreading Codes in a Partial Band Noise Jamming Environment
... users spread their signal spectrum through available wideband frequency spec- trum as narrowband sections with a special code which is called frequency ...curity system for eavesdroppers to track the ...
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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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Study on the Intelligent Monitoring System of Dry Type Water Meter Based on the Technology of Non Magnetic Pulse Acquisition and Spread Spectrum Communication
... management machine and the concentrator, a community management machine hanging multiple concentrator. The community management machine receives information from the concentrator, also communicates with the ...
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