Volume 34 Issue 10
Oct.  2008
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Yang Xing, Yu Zheng, Li Daoben, et al. New kind of DBL-CDMA spreading codes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(10): 1126-1129. (in Chinese)
Citation: Yang Xing, Yu Zheng, Li Daoben, et al. New kind of DBL-CDMA spreading codes[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(10): 1126-1129. (in Chinese)

New kind of DBL-CDMA spreading codes

  • Received Date: 19 Sep 2007
  • Publish Date: 31 Oct 2008
  • A new class of dao ben lab code division multiple access (DBL-CDMA) spreading codes with zero correlation window (ZCW) was presented, which is constructed by making kronecker product of basic loose synchronous (LS) codes and special complex matrix which is constructed by Barker sequence and its phase rotation. The auto-correlation and cross-correlation function of these new codes were analyzed and some basic theorems and corollaries on these new codes were proved. In addition, the realization methods of these new codes were also discussed. Compared with the basic LS codes, the new DBL-CDMA access codes extend the minimum ZCW, increase the number of available access codes and the number of perfect complementary pair for a fixed code length. Moreover, only few side lobes of auto-correlation and cross-correlation function appear in few time shift axis in the same group. The computer simulation results verify the validity of the theoretical derivations.

     

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  • [1] Golay M J E. Complementary series[J]. IRE Trans, Inform. Theory, 1961, IT-7:82–87 [2] Fan P Z, Suehiro, Kuroyanagi,et al. A class of binary sequences with zero correlation zone[J]. Electronics Letters, 1999, 35: 777-779 [3] Li D B. A spread spectrum multiple access coding method with zero correlation window . PCT/CN00/00028. 2000 [4] 李道本.分组零相关窗码分技术:中国, PCT/ CN2006/000947 .2006 Li Daoben, Grouped multiple access codes with zero correlation window:China, PCT/CN2006/000947 .2006(in Chinese) [5] 徐绍君,李道本.多径衰落信道下的扩频码设计与联合检测[J].通信学报, 2004, 25(4): 15-22 Xu Shaojun,Li Daoben. Spreading code design and joint detection in multi-path fading channels[J]. Journal on Communicaitons, 2004, 25(4):15-22 (in Chinese) [6] 杨星,李道本,邹永忠. 一类新的LS码及其构造方法[J].北京邮电大学学报, 2006,29(3):103-106 Yang Xing, Li Daoben, Zou Yongzhong. A new kind of LS code and its construct method[J]. Journal of BeiJing University of Posts and Telecommunications, 2006,29(3):103-106 (in Chinese) [7] Tang X H, Fan P Z. Bounds on aperiodic and odd correlations of spreading sequences with low and zero correlation zone[J]. Electronics Letters, 2001, 37 (19):1201-1203
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