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In 802.11 standards, three different modulation/transmission methods are used to transmit wireless signals: 1) Frequency Hopping Spread Spectrum, or FHSS; 2) Direct Sequence Spread Spectrum, or DSSS, and 3) Orthogonal Frequency Division Multiplexing, or OFDM. These techniques are used for several reasons, including the reduction of natural interference, noise and jamming, and prevention of detection and interception. In this lesson, I will focus on DSSS. My topics are organized by playlists: 🤍 My most popular videos: 🤍 Wireless and Wi-Fi 🤍 This is my education channel. My topics cover networking, security, programming, data structure, algorithm, programming and other computer-related materials. Please leave comments, questions and subscribe! Thank you very much! Sunny Classroom
In this video, i have explained Direct Sequence Spread Spectrum DSSS by following outlines: 0. Direct Sequence Spread Spectrum DSSS 1. Basics of Direct Sequence Spread Spectrum DSSS 2. Block Diagram of Direct Sequence Spread Spectrum DSSS 3. Working of Direct Sequence Spread Spectrum DSSS 4. Waveform of Direct Sequence Spread Spectrum DSSS 5. Significance of Direct Sequence Spread Spectrum DSSS 6. Bandwidth Sharing of Direct Sequence Spread Spectrum DSSS 7. Advantages of Direct Sequence Spread Spectrum DSSS 8. Applications of Direct Sequence Spread Spectrum DSSS Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Digital Communication and Communication Engineering. #DirectSequenceSpreadSpreadSpectrumDSSS, #BlockDiagramofDirectSequenceSpreadSpreadSpectrumDSSS, #WorkingofDirectSequenceSpreadSpreadSpectrumDSSS, #NeedofDirectSequenceSpreadSpreadSpectrumDSSS, #DigitalCommunication
FHSS : Frequency Hopping Spread Spectrum 🤍 Myself Shridhar Mankar a Engineer l YouTuber l Educational Blogger l Educator l Podcaster. My Aim- To Make Engineering Students Life EASY. Website - 🤍 5 Minutes Engineering English YouTube Channel - 🤍 Instagram - 🤍 A small donation would mean the world to me and will help me to make AWESOME videos for you. • UPI ID : 5minutesengineering🤍apl Playlists : • 5 Minutes Engineering Podcast : 🤍 • Aptitude : 🤍 • Machine Learning : 🤍 • Computer Graphics : 🤍 • C Language Tutorial for Beginners : 🤍 • R Tutorial for Beginners : 🤍 • Python Tutorial for Beginners : 🤍 • Embedded and Real Time Operating Systems (ERTOS) : 🤍 • Shridhar Live Talks : 🤍 • Welcome to 5 Minutes Engineering : 🤍 • Human Computer Interaction (HCI) : 🤍 • Computer Organization and Architecture : 🤍 • Deep Learning : 🤍 • Genetic Algorithm : 🤍 • Cloud Computing : 🤍 • Information and Cyber Security : 🤍 • Soft Computing and Optimization Algorithms : 🤍 • Compiler Design : 🤍 • Operating System : 🤍 • Hadoop : 🤍 • CUDA : 🤍 • Discrete Mathematics : 🤍 • Theory of Computation (TOC) : 🤍 • Data Analytics : 🤍 • Software Modeling and Design : 🤍 • Internet Of Things (IOT) : 🤍 • Database Management Systems (DBMS) : 🤍 • Computer Network (CN) : 🤍 • Software Engineering and Project Management : 🤍 • Design and Analysis of Algorithm : 🤍 • Data Mining and Warehouse : 🤍 • Mobile Communication : 🤍 • High Performance Computing : 🤍 • Artificial Intelligence and Robotics : 🤍
1.1 DSSS Transmission - CCNA Wireless 200-355
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1.2 DSSS Modulation - CCNA Wireless 200-355
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An explanation about DSSS Spread Spectrum Modulation and Demodulation. In this video, Gregory explains the full topology of a Spread Spectrum demodulator, showing how the bitstream is recovered, how the code sequence is acquired, synchronized and carrier phase/offset is compensated. Spread Spectrum modulation spreads the data signal in a larger bandwidth, using a PRBS sequence, with statistical noise like characteristics. The process of demodulation needs precise synchronization of the local code sequence. The code phase is first acquired, in the acquisition step, and then tracked, aligning the local PRBS/LFSR using an early/late correlation topology. Carrier phase/offset is compensated using phasor rotation in a Costas Loop like topology. The carrier phase/offset NCO is controlled by a PI Controller fed from an error detector, that forces corrections to align the constellation to the correct position. The continuous recovered bitstream/IQ constellation can now be sampled, to determine the data symbol. A NCO running at the baudrate and a Gardner Time Error Detector in conjunction with a PI controller corrects the sampling interval/point. Support the channel, become a Patron! 🤍 Learn about FSK Modulation and Demodulation: 🤍 A related video about Clock Recovery PLL: 🤍 Learn how a Costas Loop demodulator works for PSK modulations: 🤍 Article about how DFT works: 🤍 00:20 - Introduction 02:20 - Modulation details 03:30 - Theoretical Spread Spectrum receiver 05:38 - Real quadrature demodulator 06:20 - DSSS signal waveforms 08:28 - Code Acquisition 11:14 - How the correlator works 12:30 - Code Tracking 15:20 - Simulations 19:15 - Carrier phase/offset compensation 21:45 - Time recovery/synchronization Subscribe to receive more videos.
Direct Sequence Spread Spectrum (DSSS) About this video ÷ * Explanation of Direct Sequence Spread Spectrum (DSSS) * Explanation of Transmitter of DSSS * Explanation of Receiver of DSSS * Easy trick for Receiver of DSSS Previous videos link- 1- Playlist of Microprocessor and Microcontroller video link÷🤍 2- CMOS INVERTER video link ÷🤍 3- AND-OR-INVERT CMOS LOGIC CIRCUIT video link ÷🤍 4- Explanation of Protocol video link÷🤍 5- Explanation of Okumura Model video link ÷ 🤍 6- Explanation of Handoff and it's Strategies video link- 🤍 7- Explanation of Hata Model video link ÷🤍 8- CMOS LOGIC CIRCUIT of EXPRESSION Y= (A.(B+C)+D.E) video link ÷🤍 Email id ÷ logicalthinkers41🤍gmail.com
The difference between FHSS (frequency-hopping spread spectrum) and DSSS (direct-sequence spread spectrum) is their different ways of transmitting the information into a wider bandwidth. ... FHSS uses the process of “hopping” while DSSS connects the signals through pseudo-noise. FHSS is one of the two-spread spectrum technology, which is a form of radio transmission. #FHSS #DSSS #FrequencyHopping #SpreadSpectrum #CWNA #PseudoNoiseSequence #PNsequence #Wireless
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#digitalcommunication #spreadspectrum block diagram of DSSS Direct sequence spread spectrum working basics of DSSS waveform of DSSS
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Originální popisek videa z kanálu Dělnické strany sociální spravedlnosti: „Pouze s DSSS máte možnost skoncovat se současnými parlamentními zloději a zajistit šťastnou budoucnost pro vaše děti, bez strachu z hrozby teroristických útoků, imigrantů, nepřizpůsobivých a jiných parazitů. Stačí málo, pouze ve dnech 20. a 21. října vhodit do urny hlasovací lístek s číslem 28, s číslem které je hlas pro radikální změny v naší zemi. #DSSS s podporou Národních socialistů. 🤍 🤍 🤍 Zadavatel: DSSS, Zpracovatel: DSSS.” Zdroj: 🤍
The following topics are covered in this video lecture - Spread Spectrum Definition - Types - Direct Sequence Spread Spectrum (DSSS) - Characteristics - Applications #DSSS #DirectSequenceSpreadSpectrum #SpreadSpectrum
#digitalcommunication #dsss processing gain of dsss Jamming Margin of dsss
Direct-sequence spread spectrum is a spread spectrum modulation technique used to reduce overall signal interference. The spreading of this signal makes the resulting wideband channel noisier, allowing for greater resistance to unintentional and intentional interference. #WirelessSystems #DSSS Follow me on Instagram 👉 🤍 Visit my Profile 👉 🤍 Support my work on Patreon 👉 🤍
DHBW Duale Hochschule Baden Württemberg. Dieses Video gehört zur Vorlesung Grundlagen der Übertragungstechnik aus dem Jahr 2019. Skript S. 160 - 165 Spektrum Spreiz-techniken Kanal Frequency Hopping Spread Spectrum (FHSS) Direct Sequence Spread Spectrum (DSSS)
يتناول هذا الفيديو المواضيع التالية Direct Sequence Spread Spectrum DSSS Code Division Multiple Access CDMA مع امثلة عنها وغيرها من المواضيع الاخرى متابعة شيقة وانتظروا المزيد
Spread Spectrum modulation Direct sequence spread spectrum (DSSS), Code division multiple access using DSSS by Dr. V Siva Nagaraju | IARE Website Link :- 🤍 YouTubeLink :- 🤍 Facebook Link :- 🤍 Instagram Link :- 🤍 Flickr Link :- flickr.com/photos/186282793🤍N05/albums Institute of Aeronautical Engineering Dundigal, Hyderabad – 500 043, Telangana, India. Phone:8886234501, 8886234502, 040-29705852, 29705853, 29705854 Email: support🤍iare.ac.in, info🤍iare.ac.in
Na shromáždění v Dubí se dnes sešlo asi 50 až 100 příznivců extremistické Dělnické strany sociální spravedlnosti (DSSS). Neonacisté hned zpočátku shromáždění napadli fotografa serveru Parlamentní listy Víta Hassana. Těžkooděnci útočníky v průběhu shromáždění zadrželi. Celkem zadrželi šest neonacistů. Dva podezřívá z výtržnictví v souvislosti s útokem na novináře, čttyři osoby jsou podezřelé ze spáchání přečinu projev sympatií k hnutí směřujícímu k potlačení práv a svobod člověka. ČTK to řekl mluvčí policie Dan Vítek. Zásah v Dubí policie krátce před půl čtvrtou ukončila. Více zde: 🤍
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Direct Sequence Spread Spectrum is used for long distance transmission over a satellite.
Hi Viewers, in this vodeo I have explained, 1. Low Detectability signal transmission: 1.25 2 FDMA/TDMA: 7.38 3. Code Division Multiple Access (CDMA): 12.47 4. Communication over Channel with Multipaths: 19.30 5. Wireless LAN: 22.35
This video is about Frequency Hopping Spread Spectrum ( FHSS ) in Mobile Computing from the subject Mobile Communication and Computing in Hindi. Purchase notes right now, more details below: 🤍 *Mobile Communication & Computing Playlist: 🤍 *Artificial Intelligence & Soft Computing Playlist: 🤍 *Big Data Analytics Playlist: 🤍 *Digital Signal & Image Processing Playlist: 🤍 *My Gear: Camera: 🤍 Mic: 🤍 Tripod: 🤍 Let's connect Instagram: 🤍
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