Performance enhancement analysis for a DS-CDMA system

K. Rizvi, Y. Chow, M. Ismail
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引用次数: 0

Abstract

This paper has addressed the impact of different interference cancellation algorithms - sequential interference cancellation (SIC) and parallel interference cancellation (PIC) - for various data rates and channel profiles that mainly focuses on the evaluation of the performance improvements that accrue from cancelling the common pilot channel's interference in terms of bit error rate performance for downlink applications of a CDMA system. With these advanced signal processing strategies pertaining to the frequency division duplexing (FDD) element of the UMTS terrestrial radio access network (UTRAN) specified by 3GPP, apriori knowledge of the cross-correlation properties of the spreading codes for interfering common signalling channels is utilised in reducing interference under time dispersive wireless channel conditions. Performance analysis, with its dependency on the quality of the channel estimate, emphasises the potentiality of these interference cancellation schemes and their robustness against channel estimation errors.
DS-CDMA系统的性能增强分析
本文讨论了不同干扰消除算法-顺序干扰消除(SIC)和并行干扰消除(PIC) -对各种数据速率和信道配置文件的影响,主要侧重于评估从CDMA系统下行应用的误码率性能方面消除公共导频信道干扰所带来的性能改进。有了这些与3GPP指定的UMTS地面无线电接入网(UTRAN)的频分双工(FDD)元素相关的高级信号处理策略,用于干扰公共信号信道的传播码的相互关联特性的先验知识被用于减少时间色散无线信道条件下的干扰。性能分析依赖于信道估计的质量,强调了这些干扰消除方案的潜力及其对信道估计误差的鲁棒性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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