Actions for Interuser Interference Analysis for Direct-Sequence Spread-Spectrum Systems Part I : Partial-Period Cross-Correlation

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Interuser Interference Analysis for Direct-Sequence Spread-Spectrum Systems Part I : Partial-Period Cross-Correlation

Author
Ni, Jianjun (David)
Published
May 18, 2012.
Physical Description
1 electronic document
Online Version

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Summary
This presentation discusses an analysis approach to evaluate the interuser interference for Direct-Sequence Spread-Spectrum (DSSS) Systems for Space Network (SN) Users. Part I of this analysis shows that the correlation property of pseudo noise (PN) sequences is the critical factor which determines the interuser interference performance of the DSSS system. For non-standard DSSS systems in which PN sequence s period is much larger than one data symbol duration, it is the partial-period cross-correlation that determines the system performance. This study reveals through an example that a well-designed PN sequence set (e.g. Gold Sequence, in which the cross-correlation for a whole-period is well controlled) may have non-controlled partial-period cross-correlation which could cause severe interuser interference for a DSSS system. Since the analytical derivation of performance metric (bit error rate or signal-to-noise ratio) based on partial-period cross-correlation is prohibitive, the performance degradation due to partial-period cross-correlation will be evaluated using simulation in Part II of this analysis in the future.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20120008630.
JSC-CN-26379.
AIAA Houston Section Annual Technical Symposium; 18 May 2012; Houston, TX; United States.
Terms of Use and Reproduction
Copyright, Distribution under U.S. Government purpose rights.
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