Feng Li-fang, Fan Ping-zhi, Li Dao-ben. The Research and Application of Partial Correlation Property of LS Sequences[J]. Journal of Electronics & Information Technology, 2009, 31(3): 671-674. doi: 10.3724/SP.J.1146.2007.01647
Citation:
Feng Li-fang, Fan Ping-zhi, Li Dao-ben. The Research and Application of Partial Correlation Property of LS Sequences[J]. Journal of Electronics & Information Technology, 2009, 31(3): 671-674. doi: 10.3724/SP.J.1146.2007.01647
Feng Li-fang, Fan Ping-zhi, Li Dao-ben. The Research and Application of Partial Correlation Property of LS Sequences[J]. Journal of Electronics & Information Technology, 2009, 31(3): 671-674. doi: 10.3724/SP.J.1146.2007.01647
Citation:
Feng Li-fang, Fan Ping-zhi, Li Dao-ben. The Research and Application of Partial Correlation Property of LS Sequences[J]. Journal of Electronics & Information Technology, 2009, 31(3): 671-674. doi: 10.3724/SP.J.1146.2007.01647
In this paper, the generalized orthogonal sequences and N-shift partial length D0 orthogonal sequences with partial correlations are investigated. In particular, the partial correlation properties of Loosely Synchronized (LS) sequences are analyzed in details. The results show that LS sequences have partial correlation orthogonal property at 4-shift with half length, which can be utilized to construct partial length auto-complementary sequences and even-shift partial length cross-complementary sequences. Multiple-access interference can be eliminated in synchronous Code Division Multiple Access(CDMA) systems if the N-shift partial length D0 sequences are adopted.
Fan P Z and Darnell M. Sequence Design forCommunications Applications. RSP.[J].John Wiley Sons Ltd,London. ISBN 0-471-96557-x.1996,:-[2]Zhou Z C and Tang X H. A new class of sequences with zerocorrelation zone based on interleaved perfect sequences.Information Theory Workshop, ITW06 Cheng du, IEEEpress, 2006: 548-551.[3]Tang X H and Mow W H. Design of spreading codes forquasi-synchronous CDMA with inter-cell interference. IEEEJournal on Selected Areas in Communications. 2006, 24(1):84-93.[4]Li D B. The perspectives of large area synchronous CDMAtechnology for the fourth-generation mobile radio. IEEECommun. Mag., 2003, 41(3): 114-118.[5]Li D B. A method for spread spectrum multiple access codingwith zero correlation window. Eur. Patent, EP 1257077, Nov.2002.[6]Taki Y, Miyakawa H, and Hatori M, et al.. Even-shiftorthogonal sequences. IEEE Trans. on Inform. Theory, 1969,l(15): 295-300.[7]Paterson K G and Lothian J G. Bounds on partialcorrelations of sequences[J].IEEE Trans. on InformationTheory.1998, 44(3):1164-1175[8]Feng Lifang and Fan Pingzhi. Generalized bounds on partialaperiodic correlation of complex roots of unity sequences.International Conference on sequence design and theirapplications, Bengjing, China, 2006: 342-350.[9]Feng Lifang, Fan Pingzhi, and Suehiro Naoki. Generalizedbounds on the partial periodic correlation of complex roots ofunity sequence set. the Second International Workshop onSequence Design and Its Applications in Communications(IWSDA), Shimonoseki, Yamaguchi, Japan, 2005: 7-10.