有时分多址干扰时并行干扰消除接收机的性能

J. Nuutinen, K. Horneman, K. Pajukoski
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引用次数: 0

摘要

3G通信系统采用DS-CDMA作为空中接口。文献已经多次证明,基于CDMA的多址方式具有固有的抗干扰性,但在某些情况下,DS-CDMA的性能会因干扰而下降。本文讨论了基于就近时分多址的蜂窝系统及其对DS-CDMA系统性能的影响。本文还将讨论负载和电池容量问题。基本的接收机是rake和并行干扰消除(PIC)接收机,即没有特别注意抑制时分多址产生的干扰。我们将展示TDMA干扰对rake和PIC接收器性能的影响。我们不包括其他细胞干扰在这个治疗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Parallel interference cancellation receiver performance in the presence of TDMA interference
The 3G telecommunication system uses DS-CDMA as air interface. It has been proven many times in the literature that CDMA based multiple access methods are inherently interference resistant, but in some cases the performance of the DS-CDMA is decreasing due to the interference. In this paper, we discuss about nearby TDMA based cellular system and its effects to the performance of the DS-CDMA system. We will discuss about the load and cell capacity issues also in this paper. The basic receivers are rake and parallel interference canceller (PIC) receiver, i.e. no special attention is paid to suppress the TDMA originated interference. We will show the effects of the TDMA interference to both rake and PIC receiver performance. We do not include the other cell interference in this treatment.
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