Fast Acquisition Algorithm for PN Sequences

PN序列的快速采集算法

基本信息

批准号：
16560322
负责人：
SAKANIWA Kohichi
金额：
$ 2.43万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

项目摘要

In CDMA mobile communications, the acquisition procedure is the first and most fundamental function to be done before establishing connection. And the acceleration of the procedure is the one of the most important problems to reduce the communication overhead.The purpose of this research is to propose a new acquisition algorithm for PN sequences, such as m-sequence, GMW-sequence etc., by utilizing their internal composite structures of PN sequences and show that the proposed algorithm can provide faster and better acquisition performance than the conventional algorithms.In the fiscal year 2004, we extended our previous basic algorithm, which assumes chip synchronization, to a realistically feasible fast algorithm, which does not require chip synchronization, and examined its fundamental properties. Through theoretical analyses for the mean acquisition time and its variance, we could show that the proposed algorithm exhibits sufficiently good performance compared to the conventional methods.In the fiscal year 2005, the proposed fast acquisition algorithm in the previous year, after incorporating the time-over function, was examined in detail through computer simulations. We also compared the computational complexity of the proposed algorithm with those of the conventional ones. It is concluded that the proposed fast acquisition algorithm can provide much better performance in mean acquisition time and its variance with a quite small increase of computational complexity.

在CDMA移动通信中，采集程序是建立连接之前要执行的第一个也是最基本的功能。该过程的批量是减少开销的最重要问题之一。这项研究的目的是提出一种新的获取算法，例如，PN序列，例如M序列，GMW序列等，利用PN序列的内部复合结构，并表明其拟议中的Algorith can for for for for for for for for and of Algorith cans for for for for for for for for for for for for for fergerm cans fergmm cans fergmm cans fergmm cans fergmm cans fergmm 2004年，我们将假定芯片同步的先前基本算法扩展到了现实可行的快速算法，该算法不需要芯片同步，并检查了其基本属性。通过对平均习得时间及其差异的理论分析，我们可以证明，与传统方法相比，所提出的算法表现出足够良好的性能。在2005财年中，在纳入时间内功能之后，在2005财年（拟议的快速获取算法）通过计算机模拟进行了详细的详细研究。我们还将所提出算法的计算复杂性与常规算法的复杂性进行了比较。可以得出结论，提出的快速获取算法可以在平均获取时间及其差异中提供更好的性能，并具有相当小的计算复杂性提高。

项目成果

期刊论文数量（8）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Fast acquisition of PN sequences in DS/CDMA systems with incoherent demodulation

通过非相干解调快速采集 DS/CDMA 系统中的 PN 序列

DOI：
发表时间：
2005
期刊：
Wireless Personal Communications Journal (Conditionally accepted for publication)
影响因子：
0
作者：
S.Bychenkov;V.Mikhailov;K.Sakaniwa
通讯作者：
K.Sakaniwa

Fast Acquisition of PN Sequences in DS-CDMA Systems with Incoherent Demodulator

非相干解调器 DS-CDMA 系统中 PN 序列的快速采集