2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications最新文献

Optimal User Pairing for Multiuser MIMO 多用户MIMO的最优用户配对

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-12-26 DOI: 10.1109/ISSSTA.2008.50

E. Viterbo, A. Hottinen

引用次数: 23

Cross-Layer Design of a LDR-L/T UWB Sensor Network LDR-L/T超宽带传感器网络的跨层设计

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.116

S. Persia, D. Cassioli, Francesco Vatalaro, Fulvio Ananasso

引用次数: 1

Computational Complexity of Drop Based Radio Channel Simulation 基于Drop的无线信道仿真计算复杂度

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.58

P. Kyosti, T. Jamsa, A. Byman, M. Narandzic

{"title":"Computational Complexity of Drop Based Radio Channel Simulation","authors":"P. Kyosti, T. Jamsa, A. Byman, M. Narandzic","doi":"10.1109/ISSSTA.2008.58","DOIUrl":"https://doi.org/10.1109/ISSSTA.2008.58","url":null,"abstract":"Radio channel models intended for system performance assessment need to balance between accuracy and complexity. Computational complexity of channel realisation generation tend to grow due to increasing bandwidth, number of antennas, number of users, as well as with advanced network topologies. This paper investigates complexity related to radio channel parameterisation of a drop based MIMO simulation, where a number of user terminals are dropped into a network topology and short segments of the radio channel are simulated. The focus is on pre-processing associated with antenna embedding, e.g. interpolation of antenna field patterns, and stochastic propagations parameter determination, e.g. random delays, powers and azimuth angles. Complexities are calculated based on WINNER II channel model. Two modelling principles are compared, namely correlation matrix based and sum of rays based methods. Also variation of the bit error ratio (BER) performance on different drops was measured with a 2times2 MIMO hardware demonstrator. This study show that drop based simulation does not necessarily increase the complexity compared to the traditional fixed models. It also shows that geometry based simulation has lower pre-processing complexity than correlation based simulation.","PeriodicalId":334589,"journal":{"name":"2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116920970","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

Optimization of Closed-Loop Power Control for Wireless Multiple Orthogonal Access Schemes with Correlated Sources 具有相关源的无线多正交接入方案闭环功率控制优化

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.79

A. Abrardo, F. Perna, G. Ferrari

引用次数: 1

Cross-Layer Performance Analysis of TCP over Wireless Link with AMC and Type-III HARQ 基于AMC和Type-III HARQ的无线链路TCP跨层性能分析

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.97

Feijin Shi, D. Yuan

引用次数: 2

Comparison of Pareto Optimum Transmit Power between CDMA and OFDMA Uplink CDMA与OFDMA上行链路的帕累托最优发射功率比较

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.19

D. Kolyuzhnov, A. Mudesir, H. Haas

引用次数: 0

Cooperative UWB-Based Positioning Systems: CDAP Algorithm and Experimental Results 协同超宽带定位系统:CDAP算法及实验结果

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.158

A. Conti, D. Dardari, L. Zuari

{"title":"Cooperative UWB-Based Positioning Systems: CDAP Algorithm and Experimental Results","authors":"A. Conti, D. Dardari, L. Zuari","doi":"10.1109/ISSSTA.2008.158","DOIUrl":"https://doi.org/10.1109/ISSSTA.2008.158","url":null,"abstract":"The need for accurate positioning has attracted significant interest in recent years, especially in cluttered environments where signals from satellite navigation systems are not reliable. Positioning systems based on ultrawide bandwidth (UWB) technology have been considered due to the property of UWB signals to resolve multipath and penetrate obstacles. However, range-based localization techniques typically lack accuracy in dense cluttered environments, due to line-of-sight blockage and excess propagation delay through material. In this paper, we consider positioning in a real indoor environment scenario, where anchor nodes are deployed in known locations, and one or more target nodes wish to determine the own position. A range measurement error models based on measured data from real ranging devices is considered and we propose a multilateration cooperative algorithm that, without the need of measurements between targets, exploit the estimated position of cooperative nodes to increase localization performance. We examine the case where multiple targets are present in the same environment and how the position accuracy is affected by the cooperative nodes positions and by the availability of priori information about the environment and network geometry. Using numerical results based on experimental data, we demonstrate the impact of cooperation on the positioning accuracy. It is shown that, depending on the geometric configuration of the nodes, cooperation is not always advantageous.","PeriodicalId":334589,"journal":{"name":"2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125476954","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: 5

Novel Consensus Algorithm for Wireless Sensor Networks with Noise and Interference Suppression 基于噪声和干扰抑制的无线传感器网络一致性算法

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.83

A. Fasano

引用次数: 4

EM Channel Estimation for Coded OFDM Transmissions over Frequency-Selective Channel 频率选择信道上编码OFDM传输的EM信道估计

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.107

Yang Liu, L. Brunel, J. Boutros

引用次数: 9

Adapted LDPC Error Correction Scheme for 2D Optical CDMA Multimedia System 二维光CDMA多媒体系统的自适应LDPC纠错方案

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications Pub Date : 2008-09-05 DOI: 10.1109/ISSSTA.2008.151

S. Sahuguède, A. Julien-Vergonjanne, J. Cances

引用次数: 1