A New Class of Zero-Correlation Zone Sequences

Torii, Hideyuki; Nakamura, Makoto; Suehiro, N.

doi:10.1109/tit.2004.825399

Cited by 156 publications

(67 citation statements)

References 12 publications

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“…For example, the bound of ZCZ length is deduced in [21], and the expected bound of ZCZ length of N-phase sequence set is shown in [18]. This lemma shows the worst case of the length of ZCZ of the interleaving constructed sequence set.…”

Section: Proof 1 See Appendixmentioning

confidence: 95%

“…then it is clear that Z (L, N T , Z D ) meets (6) based on the definition of ZCZ sequence set [18], where Z (L, M, Z) is a ZCZ sequence set with the period of sequences L, the number of sequences M, and the length of ZCZ Z; and it means that Z (L, N T , Z D ) can serve as optimal training sequence set for CE in MIMO system. There are already many different ways to construct ZCZ sequence set used for CE as discussed in Section 1, but few of them consider the properties of NCZ which need to be taken into account for TS.…”

Section: System Model and Problem Statementmentioning

confidence: 99%

“…i=0 max h i,q according to (18). To achieve this goal, Z H p r q is grouped into N X parts successively indicated by c n p,q , and the length of the each group is l n , n = 0, · · · , N X − 1.…”

Section: Fig 3 Energy Interference Among Channelsmentioning

confidence: 99%

“…The other is based on the fundamental sequence set, such as the following: those constructed in [15,16] are based on complementary sequence set (CSS) [17], and those generated in [18,19] are based on perfect sequence (PS) [20] using interleaving technique. All of these ZCZ sequence sets (L, M, Z) generated above are bounded by a general bound Z < Z g and achieve expected bound Z = Z e , where L, M, and Z denote sequence length, sequence number, and ZCZ length, separately; Z g = L/M [21], Z e = k 2 − 2 L/ k 2 M [18], k is the number of polyphase. In this paper, we propose the factorized construction of ZCZ sequence set considering both ZCZ and NCZ, which is an extension of above constructions based on fundamental sequence set.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

Wang

Sun

et al. 2016

J Wireless Com Network

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In this paper, we investigate the channel estimation and time synchronization problem based on the zero correlation zone (ZCZ) sequence set for single carrier multiple-input multiple-output frequency domain equalization (SC-MIMO-FDE). A factorized construction of ZCZ sequence set considering the properties of both ZCZ and nonzero correlation zone (NCZ) is proposed with efficient generator and correlator, which can be in favor of timing synchronization and channel estimation both in performance and computation complexity. Using the ZCZ sequence set, a new algorithm called twice section-maximum algorithm is put forward to eliminate energy interference among channels from different transmitting antennas to the same receiving antenna. The performance achieved by the developed algorithm which performs joint timing synchronization and channel estimation with lower computational cost is better than that of the conventional method.

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Section: Proof 1 See Appendixmentioning

confidence: 95%

Section: System Model and Problem Statementmentioning

confidence: 99%

Section: Fig 3 Energy Interference Among Channelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

Wang

Sun

et al. 2016

J Wireless Com Network

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“…Following the idea of Long et al, Tang and Fan proposed p-ary LCZ sequences [9]. Torii, Nakamura, and Suehiro proposed two methods for constructing ZCZ sequences based on perfect sequences and unitary matrices [11]. For quaternary case, Kim, Jang, No, and Chung proposed some optimal quaternary LCZ sequence sets [6].…”

Section: Introductionmentioning

confidence: 99%

New sequence families with zero or low correlation zone via interleaving techniques

Gong

2009

2009 IEEE International Symposium on Information Theory

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Sequence families with zero or low correlation zone can be used in the quasi-synchronous codedivision multiple-access (QS-CDMA) communication systems. Interleaving techniques are very useful for sequence design. In this paper, we present a general construction of sequence families with zero or low correlation zone using interleaving techniques and complex Hadamard matrices. The component sequences are perfect or ideal two-level. In two cases, we construct the shift sequences: 1) P |L; 2) P is even, and L ≡ P/2 (mod P ). The conditions are derived under which the new construction is optimal. Some examples are also given to specify the new construction.Index Terms. Quasi-synchronous code-division multiple access (QS-CDMA), low correlation zone (LCZ) sequence, zero correlation zone (LCZ) sequence, interleaving technique.

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Analysis of Designing Interleaved ZCZ Sequence Families

2006

Sequences and Their Applications – SETA 2006

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A New Class of Zero-Correlation Zone Sequences

Cited by 156 publications

References 12 publications

Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

New sequence families with zero or low correlation zone via interleaving techniques

Analysis of Designing Interleaved ZCZ Sequence Families

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