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Information Technology Journal
  Year: 2011 | Volume: 10 | Issue: 7 | Page No.: 1325-1333
DOI: 10.3923/itj.2011.1325.1333
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Anti-Detection Performance of Code-Hopping Direct Sequence Spread Spectrum System

Li Dezhi, Gu Xuemai and Guo Qing

In wireless communications especially satellite communications, as blind detection technologies developing, traditional Direct Sequence Spread Spectrum (DSSS) system is no longer secure enough. Code-Hopping (CH) DSSS system is considered as an evolution for its dynamization. CH-DSSS system gets rid of periodical cycle characteristic with its variable and unpredictable spreading sequence. Therefore, CH-DSSS signal is harder to be detected unauthorized. Theoretical analysis and simulations are carried out on both signal parameters and data demodulation. Results indicate that the anti-detection performance of CH-DSSS system improves logarithmically as the number of hopping codes increases. Considering the limited code sequence resource, the performance curve is given, from which a cost-effective codes number could be chosen.
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  •    CDMA Based Optical Lan
  •    A Novel CDMA-BLAST Space-Time Code Scheme
  •    Fast Generation of Bent Sequence Family
  •    Anti-Interference Strategies Review of Unified Spread Spectrum Telemetry Tracking and Control System
How to cite this article:

Li Dezhi, Gu Xuemai and Guo Qing, 2011. Anti-Detection Performance of Code-Hopping Direct Sequence Spread Spectrum System. Information Technology Journal, 10: 1325-1333.

DOI: 10.3923/itj.2011.1325.1333






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