A tighter correlation lower bound for quasi-complementary sequence sets
Levenshtein improved the famous Welch bound on aperiodic correlation for binary sequences by utilizing some properties of the weighted mean square aperiodic correlation. Following Levenshtein’s idea, a new correlation lower bound for quasi-complementary sequence sets (QCSSs) over the complex root...
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| Main Authors: | , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
2014
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| 主題: | |
| 在線閱讀: | https://hdl.handle.net/10356/103924 http://hdl.handle.net/10220/19320 |
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| 機構: | Nanyang Technological University |
| 語言: | English |
| 總結: | Levenshtein improved the famous Welch bound on
aperiodic correlation for binary sequences by utilizing some
properties of the weighted mean square aperiodic correlation.
Following Levenshtein’s idea, a new correlation lower bound for quasi-complementary sequence sets (QCSSs) over the complex roots of unity is proposed in this paper. The derived lower bound is shown to be tighter than the Welch bound for QCSSs when the set size is greater than some value. The conditions for meeting the new bound with equality are also investigated. |
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