LUT应用于快速确定CDMA长码状态的性能分析

Performance analysis of the LUT application in CDMA long code state fast computing

介绍了一种基于LUT表的CDMA长码状态快速算法,并与传统的MSRG结构或SSRG结构CDMA长码状态算法进行了比较和分析。通过将部分运算结果预先存储在LUT表中,新方法将巨大的运算量(最多可能出现242-1次的长码发生器运算)降为不超过4242次长码发生器操作和42次4242阶矩阵模2相乘运算,极大地提高了确定当前时刻长码状态的实时性能。

This paper presents a new CDMA long code state fast computing method based in Look-Up Table, comparison with traditional MSRG or SSRG CDMA long code state computing method is also presented. By storing some operation results in LUT, the new method can turn the vast long code generating operation to no more than 4242 times long code generating operation and 42 times 4242 matrix modulo 2 multiplication operations. So, the new method greatly accelerates the CDMA long code generating speed, thus improves system performance.