Why direct sequence spread spectrum secure?
Ans. Direct Sequence Spread Spectrum (DSSS) is a spread spectrum technique whereby the original data signal is multiplied with a pseudo random noise spreading code. This spreading code has a higher chip rate (this the bitrate of the code), which results in a wideband time continuous scrambled signal. The steam of information in DSSS is divided into small pieces, each associated with a frequency channel across spectrum. Data to be transmitted is combined data based on spreading ratio. The chipping code is a redundant bit pattern associated with each bit transmitted. This makes the communication safe and secure.
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