Partitioned turbo super-orthogonal codes for a UMTS CS-CDMA scheme

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) Pub Date : 2004-08-30 DOI:10.1109/ISSSTA.2004.1371707

N. Souto, J.C. Silva, A. Correia, F. Cercas, A. Rodrigues

引用次数: 0

Abstract

The paper studies the performance of a UMTS system using a code-spread CS-CDMA scheme with the aim of improving both uplink and downlink performances. This scheme employs low rate partitioned turbo super-orthogonal codes alone for achieving the bandwidth expansion. Additionally, a scrambling code with no spreading is used for distinguishing simultaneous users. Modifications to the current UMTS structure in order to accommodate this new scheme are also discussed. To evaluate and compare the performances of the actual DS-CDMA scheme and the proposed CS-CDMA scheme, a stand-alone simulator was built and the results are presented and discussed.

查看原文本刊更多论文

UMTS CS-CDMA分块turbo超正交码

本文以提高UMTS系统的上行链路和下行链路性能为目标，研究了采用码扩CS-CDMA方案的UMTS系统性能。该方案仅采用低速率分割turbo超正交码实现带宽扩展。另外，采用无扩散置乱码来区分同时用户。还讨论了对当前UMTS结构的修改，以适应这一新方案。为了评估和比较实际的DS-CDMA方案和提出的CS-CDMA方案的性能，建立了一个独立的模拟器，并给出了结果并进行了讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738)

自引率

0.00%

发文量