locust swarm

DBL access codes are generated from the left or right kronecker product of the LS codes and the extending matrix,and are called DBL left-product codes and DBL right-product codes,respectively.

设计出扩展的Large area Synchronization地址码(LS码)——Daoben Lab地址码(DBL码)。

This paper first analyzes the ways for constructing LA codes, LS codes and LAS codes, and then makes a survey and comparison on the system capacity, spectral efficiency and the transport reliability.

首先分析了LA码、LS码和LAS码的构造方法,然后对传统CDMA和LAS-CDMA的系统容量、频谱效率和传输可靠性进行了探讨和比较,表明LAS码及LAS-CDMA是新型的重要的技术。

The capacity of MIMO DS-CDMA based on the LS codes proposed by the professor D.

在多码检测的情况下,李道本教授发明的LS码多天线CDMA系统比Walsh码和Gold码的多天线系统有更大的系统容量,后两者在大的信噪比(20dB)时候均有平台效应;在采用多用户检测时它们的容量几乎相同。

LS code based on the complementary structure is used to Spread Spectrum(SS) with the characteristic of Zero Correlation Window(ZCW).

LS码是一种基于互补结构的具有零相关性质的扩频地址码,有着优良的抗干扰性能,越来越受到人们的关注。

At first, this paper studies separately the structure feature and number of LA-code, LS-code and LAS-code.

首先分析了LA-码、LS-码和LAS-码的构造、特点和个数问题,然后讨论了LAS-码应用于CDMA2000第三代移动通信系统的方案、拥有的优势与存在的问题,最后对LAS-2000的性能进行仿真分析。