| 基于交织技术的非对称零相关区序列偶集构造 |
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| 引用本文： | 严李强,曾晓莉,王龙业,文红.基于交织技术的非对称零相关区序列偶集构造[J].电子与信息学报,2015,37(10):2483-2489. |
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| 作者姓名： | 严李强 曾晓莉 王龙业 文红 |
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| 作者单位： | 1.(西藏大学工学院 拉萨 850000) ②(西藏大学藏文信息技术研究中心 拉萨 850000) ③(电子科技大学通信抗干扰技术国家级重点实验室 成都 611731) |
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| 基金项目： | 国家自然科学基金(61261021, 61271172)和高等学校博士学科点专项(20120185110030, 20130185130002) |
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| 摘 要： | 为了抑制或者消除准同步码分多址(QS-CDMA)通信系统的多址干扰(MAI)、多径干扰(MI)以及邻小区干扰，该文提出一类非对称零相关区(A-ZCZ)序列偶集的构造方法。基于给定的最佳自相关序列偶，运用交织操作，成功设计一类非对称零相关区序列偶集。新集合的每个子集均是零相关区序列偶集，且不同子集的序列偶间的互相关函数(CCF)具有更大的零互相关区(ZCCZ)。同时，该文提出的构造方法可以根据系统要求灵活地选择子集的零相关区宽度。
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| 关 键 词： | 准同步码分多址 零相关区 非对称零相关区序列偶 最佳自相关序列偶 交织技术 |
| 收稿时间： | 2015-01-06 |
Design of Asymmetric Sequence Pairs Set with Zero-Correlation Zone Based on Interleaving Technique |
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| Yan Li-qiang,Zeng Xiao-li,Wang Long-ye,Wen Hong.Design of Asymmetric Sequence Pairs Set with Zero-Correlation Zone Based on Interleaving Technique[J].Journal of Electronics & Information Technology,2015,37(10):2483-2489. |
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| Authors: | Yan Li-qiang Zeng Xiao-li Wang Long-ye Wen Hong |
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| Affiliation: | 1.(School of Engineering and Technology, Tibet University, Lhasa 850000, China)2.(Research Center for Tibetan Information Technology, Tibet University, Lhasa 850000, China) |
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| Abstract: | In order to eliminate the Multiple Access Interference (MAI) and Multipath Interference (MI), and avoid inter-cell interference from adjacent cells in Quasi-Synchronous Code Division Multiple Access (QS-CDMA) system, one class of asymmetric sequences pairs with Zero-Correlation Zone (ZCZ) are proposed. Based on the interleaved technique, a new Asymmetric-ZCZ (A-ZCZ) sequence pair set can be generated from a given perfect auto-correlation sequence pair. The presented A-ZCZ sequence pairs contains of multiple subsets which are the traditional ZCZ sequence pairs. The Cross-Correlation Function (CCF) between any two sequence pairs of different subsets has a wider Zero-Cross-Correlation Zone (ZCCZ). As a benefit, the ZCZ length of A-ZCZ sequence pair set can be flexibly chosen according to the requirement of the system. |
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