2011 International Conference on Communications and Information Technology (ICCIT)最新文献_第4页

Neural networks for the detection and localization of breast cancer 用于乳腺癌检测和定位的神经网络

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762669

Y. Abbosh, A. Yahya, A. Abbosh

引用次数: 18

Minimum Bit Error Rate beamforming combined with Space-Time Block Coding 最小误码率波束形成与空时分组编码的结合

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762682

S. Elnoubi, W. Abdallah, Mohamed M. M. Omar

{"title":"Minimum Bit Error Rate beamforming combined with Space-Time Block Coding","authors":"S. Elnoubi, W. Abdallah, Mohamed M. M. Omar","doi":"10.1109/ICCITECHNOL.2011.5762682","DOIUrl":"https://doi.org/10.1109/ICCITECHNOL.2011.5762682","url":null,"abstract":"In this paper, we propose a Minimum Bit Error Rate (MBER) beamforming combined with Space-Time Block Coding (STBC) according to the number of antenna array. A class of adaptive beamforming algorithm has been proposed based on minimizing the BER cost function directly. Consequently, MBER beamforming is capable of providing significant performance gains in terms of a reduced BER. The beamforming weights of the combined system are optimized in such a way that the virtual channel coefficients corresponding to STBC-encoded data streams, seen at the receiver, are guaranteed to be uncorrelated. Therefore the promised achievable diversity order by conventional system with STBC can be obtained completely. Combined MBER beamforming with STBC single array performance measured by BER is compared under the condition of direction of arrival (DOA) and signal-to-noise ratio (SNR). The numerical simulation results of the proposed technique show that this minimum BER (MBER) approach utilizes the antenna array elements more intelligently and have a performance dependent of DOA and angular spread (AS).","PeriodicalId":211631,"journal":{"name":"2011 International Conference on Communications and Information Technology (ICCIT)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126164484","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: 6

Taking Turns with adaptive cycle time - an upstream media access scheme for extended-reach FTTx 具有自适应周期时间的轮流-一种扩展到达FTTx的上游媒体接入方案

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762700

A. Helmy, H. Fathallah

引用次数: 5

Efficient Zone-based Routing Protocol of Sensor Network in agriculture monitoring systems 农业监测系统中基于高效区域的传感器网络路由协议

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762672

Lutful Karim, N. Nasser, Tarek El Salti

引用次数: 32

Real-Time state-dependent routing based on user perception 基于用户感知的实时状态相关路由

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762671

H. Tran, A. Mellouk

{"title":"Real-Time state-dependent routing based on user perception","authors":"H. Tran, A. Mellouk","doi":"10.1109/ICCITECHNOL.2011.5762671","DOIUrl":"https://doi.org/10.1109/ICCITECHNOL.2011.5762671","url":null,"abstract":"In order to successfully resolve the network infrastructure's problems the network provider has to improve the service quality. However in traditional ways, maintaining and improving of the service quality are generally determined in terms of quality of service criteria, not in terms of satisfaction and perception to the end-user. The latter is represented by Quality of Experience (QoE) that becomes recently the most important tendency to guarantee the quality of network services. QoE represents the subjective perception of end-users using network services with network functions such as admission control, resource management, routing, traffic control, etc. In this paper, we focus on routing mechanism driven by QoE end-users. Today, NP-complete is one of the most routing algorithm problems when trying to satisfy multi QoS constraints criteria simultaneously. In order to avoid the classification problem of these multiple criteria reducing the complexity problem for the future Internet, we propose two protocols based on user QoE measurement in routing paradigm to construct an adaptive and evolutionary system. Our first approach is a routing driven by terminal QoE basing on a least squares reinforcement learning technique called Least Squares Policy Iteration. The second approach, namely QQAR (QoE Q-learning based Adaptive Routing), is a improvement of the first one. QQAR basing on Q-Learning, a Reinforcement Learning algorithm, uses Pseudo Subjective Quality Assessment (PSQA), a real-time QoE assessment tool based on Random Neural Network, to evaluate QoE. Experimental results showed a significant performance against over other traditional routing protocols.","PeriodicalId":211631,"journal":{"name":"2011 International Conference on Communications and Information Technology (ICCIT)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125575574","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

Sharpening the limits of the zeros of Daubechies wavelets related polynomials Daubechies小波相关多项式的零点极限锐化

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762683

J. Karam

引用次数: 0

On the detection and estimation of correlated signal using circular antenna arrays 基于圆形天线阵列的相关信号检测与估计

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762668

R. Shubair, S. Jimaa, R. Hamila, M. A. Al-Tunaije

引用次数: 3

Failure Prediction based on multi-parameter analysis in support of autonomic networks 基于多参数分析的自主网络故障预测

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762698

H. Abed, Ala Al-Fuqaha, A. Aljaafreh

{"title":"Failure Prediction based on multi-parameter analysis in support of autonomic networks","authors":"H. Abed, Ala Al-Fuqaha, A. Aljaafreh","doi":"10.1109/ICCITECHNOL.2011.5762698","DOIUrl":"https://doi.org/10.1109/ICCITECHNOL.2011.5762698","url":null,"abstract":"In this paper, we present a Failure Prediction System (FPS) using a novel algorithm that extracts frequent anomalous behaviors based on multi-scale trend analysis of multiple network parameters. The proposed Correlation Analysis Across Parameters algorithm (CAAP) utilizes multiple levels of timescale analysis to reveal the frequent anomalous behaviors. The CAAP philosophy is that failures usually do not occur because of change in a single parameter behavior; instead, a set of interrelated parameters change their behaviors jointly and lead to a particular failure. The proposed algorithm requires an enhanced version of FABM algorithm which was presented by the authors in a previous paper and was used to analyze each parameter's behavior individually. Moreover, the new version, called FABMG algorithm, has the same polynomial computational complexity of O(n2). The CAAP utilizes the data mining techniques of association rules mining in order to reveal the existed correlation relationships. Consequently, as found in this work, this approach improves the quality of the FPS results which was relying on individual parameter analysis only. One of the strengths of CAAP is that it requires the FABMG output only, i.e. it does not require rescanning the database in order to produce the correlation results.","PeriodicalId":211631,"journal":{"name":"2011 International Conference on Communications and Information Technology (ICCIT)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124135853","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 preprocessor Tcl script generator for NS-2 communication network simulation 一个用于NS-2通信网络仿真的预处理器Tcl脚本生成器

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762676

Jia Huang, H. Shahnasser

引用次数: 6

On performance of the Wald test in partially coherent Cognitive Radio channels 部分相干认知无线电信道中Wald测试的性能研究

2011 International Conference on Communications and Information Technology (ICCIT) Pub Date : 2011-03-29 DOI: 10.1109/ICCITECHNOL.2011.5762685

O. F. Rodriguez, S. Primak, V. Kontorovich

引用次数: 4