Design Criterion of Phase Spreading Sequences and Performance of DS/SSMA Communications

YANG Feng-fan; LIANG Shu-xiong; BI Guang-guo

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Design Criterion of Phase Spreading Sequences and Performance of DS/SSMA Communications

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- Design Criterion of Phase Spreading Sequences and Performance of DS/SSMA Communications
- Acta Electronica Sinica Vol. 29, Issue 1, Pages: 136-139(2001)
- 作者机构：
  
  1. 南京航空航天大学,南京,210016
  2. 香港城市大学,香港
  3. 东南大学,南京,210096
  4. 南京航空航天大学南京,210016
  5. 香港城市大学香港
  6. 东南大学南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN910TN911
- Published：2001
- 稿件说明：
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YANG Feng-fan, LIANG Shu-xiong, BI Guang-guo. Design Criterion of Phase Spreading Sequences and Performance of DS/SSMA Communications[J]. Acta Electronica Sinica, 2001, 29(1): 136-139.
DOI：

YANG Feng-fan, LIANG Shu-xiong, BI Guang-guo. Design Criterion of Phase Spreading Sequences and Performance of DS/SSMA Communications[J]. Acta Electronica Sinica, 2001, 29(1): 136-139. DOI：

摘要

本文提出了一种基于连续相位调制(CPM)并用于直接序列扩频多址(DS/SSMA)的新型相位扩谱序列(PSS)

以及它的最佳设计准则.依据该准则并在调制指数为0.5的连续相频键控(CPFSK)条件下

通过穷尽搜索法得到了含有若干种不同周期长度的相位扩谱序列的集合.同时在瑞利衰落信道条件下

作者对采用相位扩谱序列的DS/SSMA系统的性能进行了研究

最后将采用PSS序列和传统直扩序列的DS/SSMA系统的性能进行了比较.

Abstract

In this paper we propose a novel kind of phase spreading sequence (PSS) for direct sequence spread spectrum multiple access (DS/SSMA) with continuous phase modulation (CPM)

and the optimal design criterion of PSS is obtained.Several sets with PSSs of various periodic lengths under the condition of continuous phase frequency shift keying (CPFSK) of modulation index

=0.5 are constructed by exhaustive search based on this optimal criterion.The performances of PSS DS/SSMA system in Rayleigh fading channel are in-vestigated by theoretical analysis and numerical simulations.Finally

the comparisons between the performances of the systems with PSSs and the traditional PN sequence under the same conditions are also made.

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