2007 3rd IEEE/IFIP International Conference in Central Asia on Internet最新文献_第5页

Performance analysis of the MB-OFDM ultra-wide band communication system with space-time block coding and antenna selection 具有空时分组编码和天线选择的MB-OFDM超宽带通信系统性能分析

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401661

Yan Zheng, Yue Ping

{"title":"Performance analysis of the MB-OFDM ultra-wide band communication system with space-time block coding and antenna selection","authors":"Yan Zheng, Yue Ping","doi":"10.1109/CANET.2007.4401661","DOIUrl":"https://doi.org/10.1109/CANET.2007.4401661","url":null,"abstract":"The emerging ultra wideband (UWB) system offers a great potential for the design of high speed short-range wireless communications. In order to obtain the higher data rates and high capacity, one possible solution is to exploit both spatial and multipath diversities via the use of multiple-input multiple-output (MIMO) and proper coding techniques. The major problems of such systems are high cost and complexity due to more than one radio frequency (RF) chains at both end links. An effective technique to reduce this overhead is to allow the transmitter and/or the receiver to select an optimum antenna subset according to some optimization criterion. In this paper .based on traditional MB-OFDM ultra-wide band physics level structure, we analyze coded multiple-input/multiple output (MIMO) systems with antenna selection at the transmitter side. Proposed an optimum selection criterion to minimize the bit error ratio (BER) and Improved the algorithm to reduce the computation quantity when a channel adapted space-time block coding (STBC) are used. The simulation result indicated that, the STBC-MB-OFDM system may obtain the better diversity gain under the low signal to noise ratio, and the system with antenna selection is reduced the bit error ratio (BER) and complexity in the revision S-V channel.","PeriodicalId":413993,"journal":{"name":"2007 3rd IEEE/IFIP International Conference in Central Asia on Internet","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130594279","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: 1

An effective quality control of textual information on the basis of statistical redundancy in distributed mobile IT systems and e-applications 分布式移动IT系统和电子应用中基于统计冗余的文本信息的有效质量控制

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401712

l.I. Jumanov, A. Akhatov, O. Djumanov

引用次数: 5

Interframe processing of TV images in wavelet codecs for cellular communication systems 蜂窝通信系统用小波编解码器的电视图像帧间处理

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401690

I. Gavrilov, A. Chernyshov, S. M. Ibraeva, J.F. Kabanova, A. Puziy, M. Suvorova

引用次数: 3

Channel capacity for various materials of partitions in indoor ultra wideband communication system with multiple input multiple output 多输入多输出室内超宽带通信系统中不同材质隔墙的信道容量

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401708

Chun-Liang Liu, Chung-Hsin Huang, C. Chiu

引用次数: 5

Analysis of pilot symbol assisted modulation using modified long range prediction algorithm for rayleigh fading channel 瑞利衰落信道中导频符号辅助调制的改进远程预测算法分析

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401719

K. Yadav, N. Singh, S. Maskara

引用次数: 1

Impact of application-driven multi-radio emulation in embedded devices on IETF LoWPAN standards 嵌入式设备中应用驱动的多无线电仿真对IETF LoWPAN标准的影响

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401709

J. Azizov, O. Hidoev, J. Sangirov, D. Rahmatov

{"title":"Impact of application-driven multi-radio emulation in embedded devices on IETF LoWPAN standards","authors":"J. Azizov, O. Hidoev, J. Sangirov, D. Rahmatov","doi":"10.1109/CANET.2007.4401709","DOIUrl":"https://doi.org/10.1109/CANET.2007.4401709","url":null,"abstract":"As global standards evolve on WPAN mobility, engineering design becomes more challenging for sensor nodes that form WPAN groups at random based on data sensing and acquisition (application) profiles. As sensor node platforms typically have computation blocks that can handle a minimal set of instructions (8 bit microcontrollers and less) and are greatly constrained (8KB static firmware footprint and 64KB RAM), the clear challenge in supporting multi-applications (and hence multi-radios) to enhance the sensor 's functionalities is the implementation of different radio and application profile stacks on the embedded system. The main design bottlenecks are system architecture optimization for multi-radio stacks, application-driven PHY/MAC emulation in the 8KB static firmware and of course, ensuring low power and high battery life. Our studies indicate that overcoming these embedded systems engineering bottlenecks in sensor node designs involves rethinking a few standards and raising the need to have new standards in the IETF LoWPAN WG. On this paper, we would like to show the need to introduce a new protocol in the LoWPAN WG derived from overcoming some of the sensor node design bottlenecks in seamless pervasive indoor environments.","PeriodicalId":413993,"journal":{"name":"2007 3rd IEEE/IFIP International Conference in Central Asia on Internet","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117090428","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: 1

A new TORA-based energy aware routing protocol in mobile ad hoc networks 移动自组网中一种新的基于tora的能量感知路由协议

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401666

F. Yu, Yun Li, Fei Fang, Qianbin Chen

引用次数: 53

Lifetime prolonging of wireless sensor networks via a recursive clustering algorithm 基于递归聚类算法的无线传感器网络寿命延长

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401686

M. T. Honary, J. Chitizadeh

引用次数: 9

Energy consumption and computational analysis of rijndael-AES rijndael-AES的能量消耗及计算分析

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401683

M. R. Doomun, K. Soyjaudah, D. Bundhoo

引用次数: 26

Analysis of defect structures in single crystals by ion scattering and channelling 单晶缺陷结构的离子散射和通道分析

2007 3rd IEEE/IFIP International Conference in Central Asia on Internet Pub Date : 2007-12-12 DOI: 10.1109/CANET.2007.4401697

A. Rasulov

引用次数: 0