A Survey of Security Mechanisms with Direct Sequence Spread Spectrum Signals

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Provided by: Pogson Studios
Topic: Security
Format: PDF
Security has long been a challenging problem in wireless networks, mainly due to its broadcast nature of communication. This opens up simple yet effective measures to thwart useful communications between legitimate radios. Spread spectrum technologies, such as Direct Sequence Spread Spectrum (DSSS), have been developed as effective countermeasures against, for example, jamming attacks. This paper surveys previous research on securing a DSSS channel even further, using physical layer attributes - keyless DSSS mechanisms, and Watermarked DSSS (WDSSS) schemes.
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