direct sequence communication system
Implementation of Direct Sequence Spread Spectrum Communication System Using FPGA
... the parts back into the original sequence in case they are shuffled out of order. The splitting and aggregating the message is especially useful when you intend to process the split parts in asynchronous flows ...
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Comparative Simulation & Analysis of 2- PSK Spreading Transceiver
... Wireless communication technology has taken on a prominent position in indoor environment applications recently, therefore direct sequence spread spectrum (DSSS) is proposed in addition to binary ...
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Direct Sequence Spread Spectrum with Barker Code and QPSK
... the Direct Sequence Spread ...of Direct Sequence Spread Spectrum, then, we simulate Direct Sequence Spread Spectrum using ...of Direct Sequence Spread Spectrum in a ...
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Review on Design and Implementation of DSSS-CDMA Transmitter using HDL with Raised Cosine Filter to Minimize ISI
... a direct sequence spread spectrum (DSSS-CDMA) system using HDL has been proposed with the raised cosine filter to minimize the ISI and the output waveforms has been simulated by using MATLAB and ...
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Detection of direct sequence spread spectrum signals
... wireless communication devices, techniques to efficiently use and manage system resources, such as the available radio frequency (RF) spectrum, have been developed and are implemented in these devices to ...
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Direct path detection using multipath interference cancelation for communication-based positioning system
... using communication signals. The training sequence, designed for data communications, has limited duration in order to improve the transmission efficiency and there- fore, the correlation peak of the first ...
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The Effect of Channel Coding Rate on the Resistance of Direct-Sequence Spread-Spectrum Communication Systems to Narrow-Band Interference
... In this subsection, the effect of the code rate of the Optimum Codes on the single-user DS-SS systems is investigated. In the previous Section, it was argued that at the output of a spread- spectrum demodulator, the NBI ...
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Overlapping M ary Frequency Shift Keying Spread Spectrum Multiple Access Systems using Random Signature Sequences
... spread-spectrum communication system using binary frequency shift keying (BFSK) or M-ary frequency shift keying (MFSK) and noncoherent demodulation is ...after direct-sequence (DS) spreading, ...
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New Walsh-Like Non-Linear Phase Orthogonal Codes for Direct Sequence CDMA Communication
... sample sequence of the proposed orthogonal codes has more evenly spread frequency spectrum as compared to the sample Walsh code of the same ...the direct sequence spread spectrum applications, we ...
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A new time hopping/direct sequence biorthogonal PPM UWB communication system
... the system throughput. At the transmitter of the proposed TH/DS system, the TH-coded symbol sequence of each user is first generated according to the specific TH code (hop- ping pattern) and becomes ...
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Design of a direct sequence spread spectrum system for power line communication
... O'Neal, Jr., "Overview of Power Distribution Line Carrier Communications Systems," IEEE C;~obat. Telecommunications Conference, Nov[r] ...
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Differential space time modulation schemes for smart antenna aided generalized multicarrier DS CDMA systems
... DSSTS system employing a (2 × 2) -dimensional antenna array ( M = 2, L = 2 ) out- performs the DSTS system using a (4 × 1)-dimensional an- tenna array ( M = 4, L = 1), suggesting that the DSSTS scheme ...
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Direct sequence spread spectrum ultrasonic testing device
... detection system are disclosed. A continuous wave of wide-band direct-sequence spread-spectrum signals continuously drives one or more transmitting transducers, thereby flooding a test object with ...
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Sequence Analysis of the Direct Repeat Region inMycobacterium bovis
... the sequence of the 36-bp DR element is highly conserved between strains and species suggests that deletions have probably arisen by recombination between DR se- ...
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Performance Evaluation of a DS CDMA System in a Rayleigh Fading Environment
... The objectives of the current research work were: 1 To study a Direct Sequence Code Division Multiple Access DS-CDMA system in a Rayleigh fading channel, 2 To carry out the analysis for [r] ...
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New Developments and Research Challenges for 5G Wireless Systems and Networks
... The communication needs of ubiquitous machine-type devices ranges from low complexity devices such as sensors and actuators to more advanced devices such as medical ...the communication of ubiquitous things ...
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Multilocus Sequence Typing of Candida glabrata Reveals Geographically Enriched Clades
... the sequence variation of DNA fragments of the coding regions of ADE2, ERG11, FKS, HEM2, LEU2, NEP1, NMT1, PSA1, TRP1, UGP1, and URA3 in 10 unrelated ...fied. Sequence types (STs) were defined by combining ...
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Key Factors for Selecting an Agile Method: A Systematic Literature Review
... The Agile Manifesto [32] highly values customer involvement. In particular, face-to-face communication is vital. However, involving valuable customers can be a challenging process [117]. The importance and the ...
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Promoting the creation of R&D intentions in primary healthcare measured by a validated instrument
... research and innovation should occur in cooperation with different actors such as industry, pharmaceutical companies and universities [68]. Thus, the implementation strategy in a complex system, such as ...
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Reversible Data Hiding using Histogram Shifting Technique
... Larger embedding capacity can be achieved by constructing a longer feature sequence that can be perfectly compressed. One of such constructions is difference expansion (DE), which was first proposed by Tian [7], ...
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