2006 IEEE Information Theory Workshop - ITW '06 Chengdu最新文献

Adaptive Probabilities of Crossover and Mutation in Genetic Algorithms Based on Cloud Model 基于云模型的遗传算法的自适应交叉和变异概率

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323754

C. Dai, Y.F. Zhu, W.R. Chen

引用次数: 44

Error Floor and Decoding with Message Scaling for Accumulator-Based and LDPC Codes 基于累加器和LDPC码的错误层和消息缩放解码

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323769

M. Isaka

引用次数: 0

Fast Weighted Bit-Flipping Decoding of Finite-Geometry LDPC Codes 有限几何LDPC码的快速加权翻转译码

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323772

Xiaofu Wu, Ming Jiang, Chunming Zhao, X. You

引用次数: 9

Efficiency of Precode-Only Raptor codes and Turbo-Fountain Codes 纯预码猛禽码和涡轮喷泉码的效率

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323757

A. Tarable, S. Benedetto

引用次数: 6

Performance of OFDM Systems with Residual Carrier Frequency Offset over Time-varying Rayleigh Channels 时变瑞利信道中残余载波频偏OFDM系统的性能

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323687

Guangfa Dai, Hongwen Tang, Shaoping Chen

{"title":"Performance of OFDM Systems with Residual Carrier Frequency Offset over Time-varying Rayleigh Channels","authors":"Guangfa Dai, Hongwen Tang, Shaoping Chen","doi":"10.1109/ITW2.2006.323687","DOIUrl":"https://doi.org/10.1109/ITW2.2006.323687","url":null,"abstract":"In this paper, the performance of orthogonal frequency division multiplexing (OFDM) systems with residual carrier frequency offset over time-varying Rayleigh channels is investigated. The power of different received signal components (the desired signal, the ICI signals caused by frequency offset and channel variations, and noise signals) are first calculated and analyzed, and the SINR (signal to interference plus noise ratio) and BER (bit error rates) calculations for 16-QAM OFDM systems are then investigated. Analytical analysis and computer simulations show the following important results: (1) residual frequency offset and channels' time variations greatly degraded the performance of OFDM systems; (2) the intercarrier interference (ICI) energy caused by channel variations or frequency offset is concentrated in cyclically adjacent subcarriers, which is important for developing low complexity ICI cancellation techniques; (3) the influence of residual carrier frequency offset on OFDM system performance can be modeled as the effects of equivalent channels' time variations, and a time-varying channel model including the residual carrier frequency offset effect is proposed","PeriodicalId":299513,"journal":{"name":"2006 IEEE Information Theory Workshop - ITW '06 Chengdu","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116136419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Fast Antenna Subset Selection for MIMO Wireless Systems MIMO无线系统的快速天线子集选择

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323848

Guowei Zhang, Lan Tian, Lan Peng

引用次数: 3

New Recursive Space-Time Trellis Codes From General Differential Encoding 基于通用差分编码的新型递归空时格码

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323706

Shengli Fu, Haiquan Wang, X. Xia

{"title":"New Recursive Space-Time Trellis Codes From General Differential Encoding","authors":"Shengli Fu, Haiquan Wang, X. Xia","doi":"10.1109/ITW2.2006.323706","DOIUrl":"https://doi.org/10.1109/ITW2.2006.323706","url":null,"abstract":"In this paper, a recursive space-time trellis coding (RSTTC) from general differential encoding is proposed for multiple antenna systems, where general differential encoding is implemented separately from the space-time matrix modulation. The general differential encoding is achieved by introducing a new multiplication on a set of symbols (called trellis codewords) such that the corresponding RSTTC has its minimum error event length 3 or above and in the meantime it has the minimum number of states. The space-time matrix modulation is the mapping of the differentially encoded symbols to a set of space-time matrices (called modulation codewords). Due to the separation of differential encoding and space-time matrix modulation, more freedom on the design of modulation codewords (or a space-time code) exists, which may result in a larger diversity product (or determinant distance or product distance or coding advantage) than that the existing combined differential encoding and space-time matrix modulation can achieve in the concatenation with an outer binary channel encoder proposed by Schlegel and Grant. A new design of modulation codewords is then proposed for the RSTTC with larger diversity products than the existing schemes. Simulation results are finally presented to show that our new design significantly outperforms the existing schemes","PeriodicalId":299513,"journal":{"name":"2006 IEEE Information Theory Workshop - ITW '06 Chengdu","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128756200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Decoder Error Probability of MRD Codes MRD码的解码器错误概率

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323800

M. Gadouleau, Zhiyuan Yan

引用次数: 5

Adaptive JSCC using Trellis Quantization based on Punctured Ring Convolutional Codes 基于穿孔环卷积码的网格量化自适应JSCC

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323811

Zihuai Lin, T. Aulin

引用次数: 0

Adaptive Incremental Redundancy Coding and Decoding Schemes using Feedback Information 基于反馈信息的自适应增量冗余编码和解码方案

2006 IEEE Information Theory Workshop - ITW '06 Chengdu Pub Date : 2006-10-01 DOI: 10.1109/ITW2.2006.323785

T. Matsushima

引用次数: 2