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Why noise floor

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  • #70186 Reply
    bjushka
    Guest

    Hello,

    Can anyone answer why we push user signal in WCDMA under the noise floor?

    Thanx,

    #70187 Reply
    Wallis Dudhnath
    Guest

    Noise is a part of the Telecommunication landscape.

    The noise floor can be defined as the measure of the signal created from the sum of all the noise sources and unwanted signals within a system. WCDMA uses spread spectrum (DSSS or FHSS) techniques to distribute signals to the available bandwidth.

    The concept of noise floor is valuable in many RF systems and enables the radio receiver design and performance to be matched to the requirements of the overall system.

    With WCDMA, signals are seen as white noise.

    VBR/ Wallis Dudhnath

    Reference:

    DSSS – Direct Sequence Spread Spectrum

    FHSS – Frequency Hopping Spread Spectrum

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