位置：成果数据库 > 期刊 > 期刊详情页
隐含训练序列信道估计中的功率分配
  • 期刊名称：电子与信息学报，Vol.30, No.7, 2008, pp.1584-1587
  • 时间：0
  • 分类：TN92[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]西南交通大学信息编码与传输省重点实验室,成都610031
  • 相关基金：国家自然科学基金（60472089,90604035）资助课题
  • 相关项目：未来移动通信系统中高频谱效率的理论研究
关键词： MIMO, 信道估计, 功率分配, MIMO, Channel estimation, Power allocation
中文摘要：

与传统时分发送训练序列的信道估计算法相比，隐含训练序列信道估计算法将训练序列与信息序列直接相加后通过天线发送，从而节约了信道带宽。然而，在天线发送总功率一定时，训练序列的功率越大，信息序列的功率便越小，从而导致信道均衡器的信噪比减小。本文研究了基于MIMO系统的隐含训练序列信道估计算法，分析了信道均衡器信噪比与训练序列功率的关系，并根据均衡器信噪比最大原则推导出训练序列与信息序列的最佳功率分配。分析和仿真结果表明：在训练序列的最佳功率点上，信道均衡器的信噪比最高；随着接收天线信噪比的增加，训练序列的最佳功率增大。

英文摘要：

Compared with the conventional Time-Division Multiplexed （TDM） channel estimation scheme based on training sequences, the use of implicit training saves valuable bandwidth, where the training sequences are added to information sequences before antenna transmission. However, for a fixed total transmission power, the information power decrease with the increase of the training sequence power, which causes decrease in the Signal to Noise Ratio （SNR） at channel equalizer. In this paper, the relationship between the SNR of the channel equalizer and the training sequences power is analyzed for MIMO system. The optimal power allocation of the training sequence is derived based on the criterion of maximizing SNR of the equalizer. Analysis and simulation results show that the SNR of the channel equalizer is maximized at the optimal training sequence power, and the optimal power of the training sequences is increased with increase of the signal to noise ratio at the received antennas.

同期刊论文项目
未来移动通信系统中高频谱效率的理论研究
期刊论文 96 会议论文 87 著作 3
基于多训练序列的MIMO信道估计
期刊论文 16 会议论文 16 著作 1
同项目期刊论文
LS序列部分相关特性研究及其应用
近互补序列理论上界新型的LS扩频码
一类新的LS码及其构造方法
快衰落信道下MLSD接收机的简化
Design of Spreading Codes with High Diversity Gain for Multicarrier CDMA Systems
Comment on "Outage Probability Analysis of a MIMO Relay Channel with Orthogonal Space-Time Block Cod
可再生散列链的精巧构造
两种插值信道估计方法的比较
Shared Dynamic Spectrum Allocation For Multiple Radio Systems
Two Efficient Adaptively Varying Modulus Blind Equalizers: AVMA and DM/AVMA
Implicit MIMO Channel Estimation Without DC-Offset Based on ZCZ Training Sequences
Multilevel hadamard matrices and zero correlation zone sequences
Construction of non-repeating frequency-hopping sequences with no-hit zone
重叠频分复用系统循环前缀的设计和分析
两类DBL 码的性能比较
正交频分复用的一种拓展技术
并行迭代单天线干扰消除接收机
时频二维重叠复用系统
一种高速率的重叠复用传输系统及检测译码性能
基于离散傅里叶变换的重叠频分复用移动通信系统
一种新的DBL-CDMA扩频码
Comment on Closed-form SER expressions for Star MQAM in frequency non-selective Rician and Nakagami-
Construction of frequency hopping sequences with no hit zone
高速率的符号干扰传输及其编码的检测译码
基于运动轨迹的插值信道估计方法
非正交多载波直扩系统的DBL地址码设计
具有零相关窗互补地址码的设计
基于分组合并的多信道停等ARQ性能
LA码性质的几点讨论
高维调制系统的低复杂度迭代多用户检测
多重信号广义似然接收机的设计及性能分析
一种新颖的可再生多Hash链的构造
Optimal Training Sequences for Cyclic-Prefix-Based Multi-Antenna Systems with Space-Time Block-Codin
On the peak Factors of BPSK Modulated MC-CDMA Signals Employing WH Sequences and WH-Based Complement
Channel Holding Time in Wireless Cellular Communications with General Distributed Session Time and D
A strongly consistent cached data access algorithm for wireless data networks
Layered MAP algorithm for MIMO ISI channels
Exact Symbol Error Probability of General Order Rectangular QAM with MRC Diversity Reception over Na
采用LDPC 码的编码协作方案
Modeling and Cost Analysis of Movement-Based Location Management for PCS Networks with HLR/VLR Archi
A more realistic thinning scheme for call-admission control in multimedia wireless networks
Hybrid orthogonal/random multiple access scheme with improved performance for downlink CDMA systems
Semidefinite programming detection for OvHDM signal
The correlated MIMO channel model for IEEE 802.16n
Near theoretical upper bound new loosely synchronous complementary spreading sequences
基于矩阵分析的同步捕获性能研究新方法
基于全星座信号点的16-QAM载波恢复
基于优先级的语音/数据业务联合功率和速率控制
频率域序列检测的多载波系统
DBL-CDMA地址码及其设计方法
OVTDM 系统的一个性能界
一种CDMA系统呼叫接入控制方案及性能分析
最小正交频移多载波直扩系统的地址码设计
On channel estimation using optimal training sequences in cyclic-prefix-based single-carrier systems
A Note on A Simple Coefficient Test for Cubic Permutation Polynomials over Integer Rings
Extended Virtual Boundary and Its Application in Dynamic Spectrum Allocation
On Average Waiting Time in Shared Dynamic Spectrum Allocation
New blind equalization techniques based on inproved square contour algorithm
Foreword: Sequence design and its applications in communications
A New Construction of Signature Waveforms for Multi-rate Multi-cell QS-CDMA Systems
Downlink Transmission Scheme for Wireless MIMO Broadcast Channels with Multiuser Diversity
Generalized Bounds on the Partial Periodic Correlation of Complex Roots of Unity Sequence Set
Complex Rotary Codes Revisited: A Low-Complexity High-Performance Decoding Approach
A General Construction of OVSF Codes With Zero Correlation Zone
Performance Analysis of Pre-Rake Diversity with Generalized Orthogonal Codes for DS-CDMA
Z-complementary binary sequences
Simple Method for Generating mth-order Permutation Polynomials over Integer Rings
New Blind Equalization Techniques based on Improved Square Contour Algorithm
Spatio-Temporal Population Density and Spatial Dynamic Spectrum Allocation
On the Average of the Product of Two Gaussian Q-Functions over Nakagami-q (Hoyt) Fading and Its Appl
多径衰落下多天线CDMA系统信道容量研究
时间频率二维重叠复用系统及其快速检测算法
采用LDPC码的编码协作方案
OVTDM系统的一个性能界
相关瑞利衰落信道垂直分层空时码差错性能分析
MIMO—OFDM系统的同步算法
时频混合重叠复用系统的快速检测算法
CDMA系统呼叫接入控制方案及性能分析
两类DBL码的性能比较
频率选择性衰落信道中V-BLAST系统的改进概率译码算法
High spectrum efficiency channel encoding method
Spatio-Temporal Population Density and Spatial Dynamic Spectrum Allocation
时频重叠复用系统的低复杂度序列检测算法
MIMO系统的一种改进的复数域球译码算法
QUASI-SYNCHRONOUS MULTICARRIER DS-CDMA USING Z-COMPLEMENTARY SEQUENCES
Overlapped frequency-time division multiplexing
ASYMPTOTIC PERFORMANCE ANALYSIS OF ARBITRARY RECTANGULAR QAM OVER FADING CHANNELS
Performance of Gaussian waveform in OvTDM
Turbo码的一种高效改进型MAP译码算法
Coded overlapped code division multiplexing system with Turbo product structure
Decoding OvTDM with sphere-decoding algorithm
Synchronization of MIMO OFDM systems by perfect complete generalized complementary orthogonal loosely synchronous code groups
A novel MC DS-CDMA system scheme with high spectral efficiency
ON CHANNEL ESTIMATION USING OPTIMAL TRAINING SEQUENCES IN CYCLIC-PREFIX-BASED SINGLE-CARRIER SYSTEMS WITH SPACE-TIME BLOCK-CODING
CONSTRUCTION OF FREQUENCY HOPPING SEQUENCES WITH NO HIT ZONE
Accuracy Analysis of Position
Multilevel hadamard matrices a
New Carrier Recovery Based on
Construction of Sequences with
Optimal Training Sequences for
Construction of non-repeating
Z-complementary binary sequenc
Two Efficient Adaptively Varyi
New Blind Equalization Techniq
Implicit MIMO Channel Estimati
POWER ALLOCATION OF DATA DEPENDENT SUPERIMPOSED TRAINING
Accuracy Analysis of Position Estimation Based on Measurements of Received Signal Strength Difference
New Carrier Recovery Method for 16-QAM System Based on Full Constellation Points
ON CHANNEL ESTIMATION USING OPTIMAL TRAINING SEQUENCES IN CYCLIC-PREFIX-BASED SINGLE-CARRIER SYSTEMS WITH SPACE-TIME BLOCK-CODING