NETW360: Wireless Technologies and Services

Apr 28th, 2015
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DeVry University
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Spread Spectrum techniques are methods by which a signal generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. Spread Spectrum establishes secure communication, increasing resistance to natural interference, noise and jamming, to prevent detection.

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Week 1 iLab ReportKlite JacksonDeVry UniversityNETW360: Wireless Technologies and ServicesOPNET Preparation and Spread Spectrum Transmission ComparisonSubmitted to:Professor: Gyan AhluwaliaDate: 7/12/2013OPNET PreparationOPNET Preparation Spread Spectrum Transmission ComparisonIntroduction to Spread Spectrum TransmissionGuidelinesWhat is it? Why is it important? What issues are addressed? How does it work?Spread Spectrum techniques are methods by which a signal generated with a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth. Spread Spectrum establishes secure communication, increasing resistance to natural interference, noise and jamming, to prevent detection. It's important in military applications when protecting communications.Frequency Hopping Spread Spectrum (FHSS)Frequency hopping is one of two basic modulation techniques used in spread spectrum signal transmission. It is the repeated switching of frequencies during radio transmission, often to minimize the effectiveness of "electronic warfare" - that is, the unauthorized interception or jamming of telecommunications. I use this technique often in the miltaryDirect Sequence Spread Spectrum (DSSS)In telecommunications, direct-sequence spread spectrum (DSSS) is a modulation technique. As with other spread spectrum technologies, the transmitted signal takes up more bandwidth than the information signal that is being modulated.Comp

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