OFDM_SYSTEMS

作品数：132被引量：158H指数：6
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A modified time domain interpolation method for LS channel estimation in OFDM systems被引量：4
《Journal of Southeast University(English Edition)》2022年第3期219-226,共8页Zhang Yenan Xu Feiyun Jia Minping 
The National Natural Science Foundation of China(No.51975117)。
A modified time domain interpolation method is proposed for orthogonal frequency division multiplexing(OFDM)systems to address the problem that time domain interpolation in the least square(LS)channel estimation metho...
关键词：orthogonal frequency division multiplexing(OFDM) channel estimation linear interpolation time domain interpolation 
Improved Kalman filter channel estimation method for OFDM systems in fast time-varying environment
《Journal of Southeast University(English Edition)》2005年第4期389-392,共4页宋晓晋 宋铁成 沈连丰 陆苏 
TheNationalNaturalScienceFoundationofChina(No.60472053),theNationalHighTechnologyResearchandDevelopmentProgramofChina(863Program)(No.2003AA1Z1110),theHighTechnologyResearchandDevelopmentProgramofJiangsuProvince(No.BG2003004),theKeyProjectofChineseMinistryofEducation(No.02171).
Under analyzing several characteristics of frequency-selective fast fading channels, such as large Doppler spread and multi-path interference, a low-dimensional Kalman filter method based on pilot signals is presented...
关键词：channel estimation orthogonal frequency division multiplexing （OFDM） least square （LS） minimum mean-square-error （MMSE） 
Scalable transcoding for video transmission over space-time OFDM systems被引量：2
《Journal of Southeast University(English Edition)》2005年第4期405-410,共6页钱团结 孙军 解蓉 苏鹏程 王嘉 
TheNationalNaturalScienceFoundationofChina(No.60202006,60332030).
A new scheme combining a scalable transcoder with space time block codes （STBC） for an orthogonal frequency division multiplexing （OFDM） system is proposed for robust video transmission in dispersive fading channe...
关键词：scalable transcoding DOWN-SAMPLING space-time codes orthogonal frequency division multiplexing 
New subspace algorithm for blind channel estimation in OFDM systems
《Journal of Southeast University(English Edition)》2005年第2期132-135,共4页黄学军 余松煜 毕厚杰 
In order to increase the transmission efficiency,a subspace-based algorithm for blind channel estimation using second-order statistics is proposed in orthogonal frequency division multiplexing (OFDM) systems.Because t...
关键词：orthogonal frequency division multiplexing (OFDM) blind channel estimation subspace algorithm 
Iterative receivers for SFBC-OFDM systems with adaptive training scheme
《Journal of Southeast University(English Edition)》2005年第2期127-131,共5页井雅 徐晓东 陈明 程时昕 
TheNationalHighTechnologyResearchandDevelopmentProgramofChina(863Program) (No. 2002AA123031)
This paper considers the design of iterative receivers for space-frequencyblock-coded orthogonal frequency division multiplexing (SFBC-OFDM) systems in unknown wirelessdispersive fading channels. An iterative joint ch...
关键词：space-frequency block-coded orthogonal frequency division multiplexing(SFBC-OFDM) iterative receiver channel estimation adaptive training scheme 
Performance analysis of coded OFDM systems using a novel class of LDPC codes
《Journal of Southeast University(English Edition)》2004年第4期401-404,共4页何善宝 张立 赵春明 
KeyProjectoftheNationalNaturalScienceFoundationofChina(No.60496311).
A new method of constructing regular low-density parity-check (LDPC) codes was proposed. And the novel class of LDPC codes was applied in a coded orthogonal frequency division multiplexing (OFDM) system. This method e...
关键词：Computer simulation Iterative methods Mobile telecommunication systems QUASICRYSTALS Turbo codes 
An enhanced iterative joint channel estimation and symbol detection algorithm for OFDM systems被引量：1
《Journal of Southeast University(English Edition)》2003年第2期103-107,共5页韩冰 高西奇 尤肖虎 
TheNationalHiTechDevelopmentPlan(2 0 0 1AA12 30 15 )
For orthogonal frequency division multiplexing (OFDM) wireless communication, the system throughput and data rate are usually limited by pilots, especially in a high mobility environment. In this paper, an enhanced it...
关键词：OFDM channel estimation ITERATION multipath  fading channel 
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