一种高效的Turbo码CDMA信号检测算法 协作信道检测与转发

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摘要翻译：
提出了一种在检测和转发协作信道中对turbo编码码分多址(CDMA)信号进行检测的新算法。用户协作的使用大大提高了CDMA系统的性能。由于CDMA系统的特殊结构，协作方案增加了CDMA无线系统的和截断容量，改善了用户-伙伴链路的质量，从而提高了系统的整体性能。本文提出了一种新的合并方案，使接收端对伙伴链路中的判决错误具有更强的鲁棒性。在具有一阶马尔可夫时变和不同莱斯因子方差的信道中，对这种结构进行了1/2码率4态删失turbo码的仿真。仿真结果表明，在合作伙伴和接收端都有信道估计的情况下，用户之间的合作提供了更大的分集增益，特别是在使用新的合并算法时。
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英文标题：
《A Novel Detection Algorithm Efficient for Turbo coded CDMA Signals in
  Detect and Forward Cooperative Channels》
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作者：
Ebrahim Karami
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最新提交年份：
2018
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分类信息：

一级分类：Electrical Engineering and Systems Science        电气工程与系统科学
二级分类：Signal Processing        信号处理
分类描述：Theory, algorithms, performance analysis and applications of signal and data analysis, including physical modeling, processing, detection and parameter estimation, learning, mining, retrieval, and information extraction. The term "signal" includes speech, audio, sonar, radar, geophysical, physiological, (bio-) medical, image, video, and multimodal natural and man-made signals, including communication signals and data. Topics of interest include: statistical signal processing, spectral estimation and system identification; filter design, adaptive filtering / stochastic learning; (compressive) sampling, sensing, and transform-domain methods including fast algorithms; signal processing for machine learning and machine learning for signal processing applications; in-network and graph signal processing; convex and nonconvex optimization methods for signal processing applications; radar, sonar, and sensor array beamforming and direction finding; communications signal processing; low power, multi-core and system-on-chip signal processing; sensing, communication, analysis and optimization for cyber-physical systems such as power grids and the Internet of Things.
信号和数据分析的理论、算法、性能分析和应用，包括物理建模、处理、检测和参数估计、学习、挖掘、检索和信息提取。“信号”一词包括语音、音频、声纳、雷达、地球物理、生理、（生物）医学、图像、视频和多模态自然和人为信号，包括通信信号和数据。感兴趣的主题包括：统计信号处理、谱估计和系统辨识；滤波器设计；自适应滤波/随机学习；（压缩）采样、传感和变换域方法，包括快速算法；用于机器学习的信号处理和用于信号处理应用的机器学习；网络与图形信号处理；信号处理中的凸和非凸优化方法；雷达、声纳和传感器阵列波束形成和测向；通信信号处理；低功耗、多核、片上系统信号处理；信息物理系统的传感、通信、分析和优化，如电网和物联网。
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英文摘要：
  In this paper, a new detection algorithm is proposed for turbo coded Code Division Multiple Access (CDMA) signals in detect and forward cooperative channels. Use of user cooperation makes much improvement in the performance of CDMA systems. Due to the special structure of CDMA systems, cooperative schemes increase the sum and cutoff capacities of CDMA based wireless systems and improve the quality of user-partner link which enhances the overall performance of the system. In this paper, a new combining scheme is proposed that makes the receiver more robust against the decision errors in the partner link. This structure is simulated for punctured 1/2 rate 4 states turbo code in a channel with first-order Markov time variation and different Rice factor variances. Through various simulations, it is shown when the channel estimates are available in the partner and receiver, the cooperation between users provides much diversity gain especially while using the new proposed combining algorithm.
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PDF链接：
https://arxiv.org/pdf/1803.0407

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关键词：信号检测 CDMA CDM DMA Applications 码率 cooperation algorithm partner makes