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时频双选信道中基于变分推理的迭代接收技术
  • 项目名称：时频双选信道中基于变分推理的迭代接收技术
  • 项目类别：青年科学基金项目
  • 批准号：61201181
  • 申请代码：F010202
  • 项目来源：国家自然科学基金
  • 研究期限：2013-01-01-2015-12-31
  • 项目负责人：武楠
  • 依托单位：北京理工大学
  • 批准年度：2012
中文摘要：

随着人们对"移动性"和"多媒体业务"需求的不断增长，由多径和多普勒效应引起的时间和频率双选择性衰落对无线传输的影响越来越显著，因此其最佳接收机必须进行联合信道估计和检测。本课题将已在机器学习领域得到成功应用的"变分推理"引入时频双选信道的接收机设计，通过最小化与目标函数之间的KL距离，将包含多变量的复杂函数用相对简单且易于因式分解的函数近似。对采用基扩展模型参数化的时频双选信道，研究受到载波频偏和相位噪声影响下基于变分推理的联合信道估计和检测算法，分析不同独立性约束条件对算法性能和复杂度的影响。在时频双选信道的因子图模型上，研究基于变分推理的混合消息传递的规则和条件，设计基于变分消息传递的迭代估计、检测和译码算法，并通过EXIT图和"半分析"方法分析其性能。由于变分推理具有系统性和结构化的特点，本课题的研究可扩展至干扰抑制、多用户检测等问题，对迭代接收机的设计具有重要的理论意义和应用价值。

中文主题词： 时频双选信道；变分推理；迭代接收机；因子图；联合信道估计与检测
结论摘要：

英文主题词Time and Frequency Doubly Selective Channel；Variational Inference；Iterative Receiver；Factor Graphs；Joint Channel Estimation and Detection

成果综合统计
成果类型
数量
  • 期刊论文
  • 会议论文
  • 专利
  • 获奖
  • 著作
  • 15
  • 20
  • 0
  • 0
  • 0
期刊论文
Joint Channel Estimation and Decoding in the Presence of Phase Noise over Time-selective Flat-fading
Factor Graph-based Multipath-assisted Indoor Passive Localization with Inaccurate Receiver
Semi-analytical method for performance analysis of code-aided soft-information based iterative carri
Factor-graph-based iterative channel estimation and signal detection algorithm over time-varying fre
Expectation-maximisation-based localisation using anchors with uncertainties in wireless sensor netw
Gaussian message passing-based cooperative localization on factor graph
Distributed cooperative localization based on gaussian message passing on factor graph in wireless n
Parametric message passing-based relative navigation in JTIDS. Journal of Systems Engineering and El
A Performance Limit of TOA-Based Location-Aware Wireless Networks With Ranging Outliers
基于因子图的迭代信道估计与译码算法
基于LDPC码约束条件的编码辅助帧同步算法
Parametric message passing-based relative navigation in joint tactical information distribution system
会议论文
Design and performance analysis of adaptation for broadband satellite networks
Maximum Likelihood SNR Estimator for Coded M-APSK Signals in Slow Fading Channels
Maximum likelihood localization using a priori position information of inaccurate anchors
Gaussian message passing for cooperative localization in wireless networks
Variational message passing for joint localization and synchronization in wireless sensor networks
Code-aided iterative SNR estimator for M-APSK signals based on expectation maximization algorithm
Gaussian belief propagation for joint localization and synchronization in sensor networks
Distributed Passive Localization with Asynchronous Receivers Based on Expectation Maximization
Gaussian message-based cooperative localization on factor graph in wireless sensor networks
A low-complexity cooperative localization algorithm based on variational message passing in wireless
Passive localization with inaccurate receivers based on Gaussian belief propagation on factor graph
Maximum likelihood SNR Estimator for Coded APSK Signals in Slow Fading Channels
A Low Complexity SNR Estimator for QPSK Modulation in AWGN Channel
Particle swarm optimization-based particle filter for cooperative localization in wireless networks
A message passing approach to joint channel estimation and decoding with carrier frequency offset in
Expectation Maximization-Based Passive Localization in Asynchronous Wireless Networks
Multipath-aided Passive Localization using Inaccurate Receiver based on Factor Graph
Joint Channel Response, Phase Noise Estimation and Decoding in Time-selective Flat Rayleigh Fading C
Evaluation of Cramer-Rao bounds for phase estimation of coded linearly modulated signals
Nodes localization with inaccurate anchors via EM algorithm in wireless sensor networks
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