Construction of Sequences with Zero Correlation Zone Based on Interleaved Technique
-
摘要: 用交织方法研究ZCZ序列集合的构造,提出了基于交织技术的ZCZ序列构造的新方法.对于给定的周期为L的最佳自相关序列a和正交矩阵HN,首先选择合适的移位序列,对序列a进行交织得到(L,N)-交织序列b;再用正交矩阵HN将交织序列b扩展为新的序列集,则该序列集就是所构造的ZCZ序列集.用该方法可以构造达到或接近理论界的具有大的零相关区的ZCZ序列集,并统一了三元、四相和多相ZCZ序列集构造方法.Abstract: Interleaved technique was used to construct a zero correlation zone(ZCZ),and a new method was proposed to design sequences with ZCZ.For a given perfect sequence a of a period L and an orthogonal matrix,a new sequence b is generated by interleaving the sequence a first,then a new ZCZ sequence set is obtained by extending b with the orthogonal matrix.The ZCZ sequence set constructed with the proposed method can reach or approach the mathematical bound, and the methods for construction of ternary,quadripahse or polyphase ZCZ sequences are unified with the proposed method.
-
Key words:
- spreading sequence /
- ZCZ sequence /
- interleaved technique /
- perfect sequence
-
FAN Pingzhi,HAO Li.Generalized orthogonal sequences and their applications in synchronous CDMA systems[J]. IEICE Trans Fundamentals,2000,E83-A(11):2 054-2 069.[2] FAN Pingzhi,SUEHIRO N,KUROYANAGI N,et al.A class of binary sequences with zero correlation zone[J]. Electron.Lett,1999,35(10):777-779.[3] HAYASHI T.Binary sequences with orthogonal subsequences and a zero-correlation zone:pair-preserving shuffled sequences[J]. IEICE Trans.Fundamentals,2002,E85-A(6):1 420-1 425.[4] MATSUFUJI S.Two types polyphase sequence sets for approximately synchronized CDMA systems[J]. IEICE Trans.Fundaments,2002,E86-A(1):229-234.[5] TORRI H,NAKAMURA M,SUEHIRO N.A new class of zero-correlation zone sequences[J]. IEEE Trans Inform Theory,2004,50(3):559-565.[6] LI D B.A high spectrum efficient multiple access code[J]. Chinese Journal of Electronics,1999,8:221-226.[7] LI D B.The perspectives of large area synchronous CDMA technology for the fourth-generation mobile radio[J]. IEEE Communications Magazine,2003,41:114-118.[8] TANG Xiaohu,FAN Pingzhi,MATSUFUJI S.Lower bounds on correlation of spreading sequence set with low or zero correlation zone[J]. IEE Electron.Lett,2000; 36(6):551-552.[9] 彭代渊.新型扩频序列及其理论界研究[D]. 博士学位论文.成都:西南交通大学,2005.PENG Daiyuan.Investigation of novel spreading sequences and their theoretical bounds[D]. Doctor Degree Dissertation.Chengdu:Southwest Jiaotong University,2005.[10] GONG G.New designs for signal sets with low cross correlation,balance property,and large linear span:GF(p) case[J]. IEEE Trans Inform Theory,2002,48(11):2 847-2 867.[11] 王龙业,唐小虎.基于交织方法的ZCZ序列设计[J]. 西南交通大学学报,2005,40(3):422-425.WANG Longye,TANG Xiaohu.Sequence design of zero correlation zone based on interleaved technique[J]. Journal of Southwest Jiaotong University,2005,40(3):422-425.[12] FAN Pingzhi,DARNELL M.Sequence design for communications applications[M]. London:Research Studies Press,1996,21:169-199.[13] PENG Daiyuan,FAN Pingzhi,SUEHIRO N.Construction of sequences with large zero correlation zone[J]. IEICE Trans.Fundamentals,2005,E88-A(11):2 365-2 359.[14] DENG Xinmin,FAN Pingzhi.Spreading sequence set with zero correlation zone[J]. Electron Lett,2000,36(11):993-994.
点击查看大图
计量
- 文章访问数: 1247
- HTML全文浏览量: 87
- PDF下载量: 497
- 被引次数: 0