Description: 一篇是关于在OFDM系统下，改善LS信道估计的文章，其使得信道估计达到了很好的效果-a paper is about how to improve the channel estimation in the OFDM system ,it has achieves good performance Platform: |
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Author:hmg |
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Description: OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。-OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced.
Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results.
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Description: 此程序是在MIMO-OFDM系统中，利用角度域进行信道估计，选用DFT的插值方法进行！希望对研究角度域信道估计的人有所帮助！-This procedure is in the MIMO-OFDM system, using the angle domain channel estimation, the selection of DFT interpolation method! I hope to study angle domain channel estimation of some help! Platform: |
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Author:xiaoqiang |
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Description: mimo-ofdm系统中信道容量估计的分析和仿真，很详细-Analysis and Simulation of channel capacity estimation in MIMO-OFDM system, a very detailed Platform: |
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Author:杨旭 |
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Description: 基于matlab的OFDM仿真程序；
我再论坛找了很多OFDM的代码和文章,但总有遗患,为什么呢原因是大部分只有简单的映射,IDFTDFT变换等等,但主要的同步和信道估计去没有人提出来,甚至做出来..
现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFTDFT,同步(时间频率同步)和信道估计,以及频率偏移的估计等一系列代码.-Based on the OFDM matlab simulation program I' ll find a lot of forums and articles OFDM code, but there are left suffering, why because most only simple mapping, IDFTDFT transformation, etc., but the main synchronization and channel estimation to no one proposed, and even do it .. and now I finally found a copy of it in the form FUNCTION, Reproduction of OFDM mapping, IDFTDFT, synchronous (time and frequency synchronization) and channel estimation, and the estimated frequency offset a series of code. Platform: |
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Author:qinxuechen |
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Description: 卡尔曼滤波器进行信道估计的一篇文章，适用于OFDM-MIMO系统。-Kalman filter for channel estimation in an article for OFDM-MIMO systems. Platform: |
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Author:陈阳 |
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Description: OFDM中基于导频的信道估计算法性能分析-Performance analysis algorithms in OFDM estimation based on pilot channel Platform: |
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Author:胡哲 |
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Description: 一个很好的matlab关于ofdm的程序，该程序对信道估计算法有详细的说明-A good ofdm matlab program, the program for channel estimation algorithm is described in detail Platform: |
Size: 5120 |
Author:hantanqingshi |
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Description: ofd估计信道性能，计算误比特率，包含信号发射，信道估计，信号接收。在高斯信道，采用qdpsk调制解调。-ofd channel estimation performance, bit error rate calculation, comprising a signal transmitter, channel estimation, signal reception. In the Gaussian channel, using qdpsk modem. Platform: |
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Author:深小贱 |
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Description: matlab实现的OFDM运用于ROF光纤无线通信系统的仿真，用的是4QAM调制，LS信道估计，还包括Optisystem的仿真-simulation matlab achieve ROF optical fiber used in the OFDM wireless communication system, using 4QAM modulation, LS channel estimation, simulation also includes Optisystem Platform: |
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Author:Poul |
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Description: Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is very sensitive to the carrier frequency offset (CFO), which not only affects the channel estimation but also the selection of a minimum error probability based precoder for peak-to-average power ratio (PAPR) reduction such that the system performance will degrade. This paper presents the joint scheme of CFO) and channel estimation in the MIMO-OFDM systems with the minimum error probability based precoder for reducing PAPR. We provide the solution to eliminate the effects of ICI due to CFO mismatch for OFDM with space frequency block codes and spatial multiplexing, drive a generalized linear model and propose a non-iterative reduced complexity model. Our proposed scheme is effective in estimating and compensating for frequency-independent and frequency dependent transmit and receive ICI in the presence of a carrier frequency offset.-Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is very sensitive to the carrier frequency offset (CFO), which not only affects the channel estimation but also the selection of a minimum error probability based precoder for peak-to-average power ratio (PAPR) reduction such that the system performance will degrade. This paper presents the joint scheme of CFO) and channel estimation in the MIMO-OFDM systems with the minimum error probability based precoder for reducing PAPR. We provide the solution to eliminate the effects of ICI due to CFO mismatch for OFDM with space frequency block codes and spatial multiplexing, drive a generalized linear model and propose a non-iterative reduced complexity model. Our proposed scheme is effective in estimating and compensating for frequency-independent and frequency dependent transmit and receive ICI in the presence of a carrier frequency offset. Platform: |
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Author:sivadeep |
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Description: Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is very sensitive to the carrier frequency offset (CFO), which not only affects the channel estimation but also the selection of a minimum error probability based precoder for peak-to-average power ratio (PAPR) reduction such that the system performance will degrade. This paper presents the joint scheme of CFO) and channel estimation in the MIMO-OFDM systems with the minimum error probability based precoder for reducing PAPR. We provide the solution to eliminate the effects of ICI due to CFO mismatch for OFDM with space frequency block codes and spatial multiplexing, drive a generalized linear model and propose a non-iterative reduced complexity model.-Multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is very sensitive to the carrier frequency offset (CFO), which not only affects the channel estimation but also the selection of a minimum error probability based precoder for peak-to-average power ratio (PAPR) reduction such that the system performance will degrade. This paper presents the joint scheme of CFO) and channel estimation in the MIMO-OFDM systems with the minimum error probability based precoder for reducing PAPR. We provide the solution to eliminate the effects of ICI due to CFO mismatch for OFDM with space frequency block codes and spatial multiplexing, drive a generalized linear model and propose a non-iterative reduced complexity model. Platform: |
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Author:sivadeep |
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Description: Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a Platform: |
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Author:MUHAMMAD SHAKIL |
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Description: DFT-BASED CHANNEL ESTIMATOR FOR OFDM SYSTEMS WITH LEAKAGE ESTIMATION IS DEVELOPED IN MATLAB SOFTWARE. IT IS THE CLEAR DOCUMENTATION. Platform: |
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Author:tushara |
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Search - channel estimation in ofdm