2012 15th International Conference on Computer and Information Technology (ICCIT)最新文献_第4页

Maximal path based conflict resolution approach in multiple homologous gene list alignment 基于最大路径的多同源基因序列比对冲突解决方法

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509738

Ridwan Rashid Noel, R. Hasan, M. S. Rahman

引用次数: 0

Cooperative secondary user selection as a relay for the primary system in underlay cognitive radio networks 协同辅助用户选择作为底层认知无线网络中主系统的中继

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509734

Md. Fazlul Kader, Asaduzzaman, Mahfuzulhoq Chowdhury

引用次数: 4

Obtaining business process from value process in blended value based sustainable e-business modelling 基于混合价值的可持续电子商务建模中从价值过程获取业务流程

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509725

M. N. Dewan, M. Chowdhury, M. Quaddus

引用次数: 2

An approach to identify myopathy disease using different signal processing features with comparison 一种利用不同信号处理特征识别肌病的方法与比较

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509759

A. Doulah, Md. Asif Iqbal

{"title":"An approach to identify myopathy disease using different signal processing features with comparison","authors":"A. Doulah, Md. Asif Iqbal","doi":"10.1109/ICCITECHN.2012.6509759","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509759","url":null,"abstract":"Myopathy, one of the most frequent inherited musculoskeletal diseases resulting in muscular weakness. Muscle cramps, tautness & spasm are also associated with myopathy. The electromyography (EMG) signals are biomedical signals that examine the muscle function through the inquiry of the electrical signal the muscles emanate. As the nervous system controls the muscle activity, the EMG signals can be viewed and analyzed in order to recognize the indispensable features of myopathy disease in individuals. The aim of this work is to dissociate the myopathic signals by studying the time & frequency domain features of the EMG signals. In this paper, autocorrelation (ACR), zero crossing rate (ZCR) as time domain features, mean frequency as frequency domain feature and Short Time Fourier Transform (STFT) as Time-frequency feature; are extensively analyzed on EMG signals of both the normal persons and the patients to successfully distinguish the patients from normal group. In order to comprehend this aim, EMG signal database was obtained from a normal control group consisted of 6 healthy persons & a group of patients with myopathy consisted of 6 patients. The analytical results show that myopathic signals have lower autocorrelation peak then the healthy ones and zero crossing rate and mean frequency of the affected signals are higher than the normal persons. In addition to that the power level of the spectrogram of the myopathy patients is considerably lower than that of the normal group and frequency shifting to higher frequency region for peak values.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131088707","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: 12

Noise reduction algorithm for LS channel estimation in OFDM system OFDM系统LS信道估计的降噪算法

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509773

Md. Nazmul Islam Khan, Md. Jobayer Alam

{"title":"Noise reduction algorithm for LS channel estimation in OFDM system","authors":"Md. Nazmul Islam Khan, Md. Jobayer Alam","doi":"10.1109/ICCITECHN.2012.6509773","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509773","url":null,"abstract":"Wireless communication system incorporating coherent OFDM requires the estimation and tracking of the channel Impulse Response (CIR) for accurate demodulation of data at the receiver. In pilot-symbol-aided OFDM system, Minimum Mean Square Error (MMSE) estimator performs better than Least Square (LS) estimator; however, computational complexity associated with the MMSE method is relatively higher than the LS. Although, the LS estimator has lower complexity and requires minimum knowledge the channel state information, the estimator suffers from inherent additive Gaussian noise and Inter Carrier Interference (ICI). Following that, in this study an efficient and improved channel estimation technique is proposed based on the LS algorithm. Simulation results show that the proposed method performs considerably better than the conventional LS method for a range of Signal to Noise Ratios (SNRs). In addition, the performance of the proposed method is found to be almost equal, if compared with the MMSE estimator. Despite the proposed method experiences relatively higher computational complexity than the LS, the complexity is yet to be achieved about 40 % lower than the MMSE.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114055138","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: 9

Usability analysis of e-Governance services in Bangladesh — A survey and future directions 孟加拉国电子政务服务的可用性分析——调查与未来方向

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509799

H. Ferdous, F. Choudhury, Md. Rashidujjaman Rifat, Shubrami Moutushy

引用次数: 4

Consistency analysis of RSSI measurement for distance estimation of Wireless Sensor nodes 用于无线传感器节点距离估计的RSSI测量一致性分析

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509752

Md. Sazzad Hossen, M. K. Kamal, Mohammad Shaifur Rahman

{"title":"Consistency analysis of RSSI measurement for distance estimation of Wireless Sensor nodes","authors":"Md. Sazzad Hossen, M. K. Kamal, Mohammad Shaifur Rahman","doi":"10.1109/ICCITECHN.2012.6509752","DOIUrl":"https://doi.org/10.1109/ICCITECHN.2012.6509752","url":null,"abstract":"Wireless Sensor Devices are becoming more attractive as a sensor platform compared to wired sensor device because of the ease of installation and freedom in sensor placement. The field of Wireless Sensor Network (WSN) has been increasing with the advancement of modern science and technology. In order to determine the location of sensor nodes, lots of localization algorithm have been established and proposed by the researchers. Since the Received Signal Strength Indicator (RSSI) is assumed to be a strong parameter, most of researches have been worked out for localization algorithm using RSSI. But it is found that lots of irregular values of RSSI are produced at different conditions. Thus it is so much troublesome to get the actual position of sensor nodes using RSSI. In our experiments, we tried to investigate the reasons of deviation in RSSI values in different conditions using TelosB sensor nodes. We showed the effects of different obstacles between the sensor nodes and their different orientations as well. The results show that, the distances, obstacles and sensor node orientations play a significant role in changing the RSSI values.","PeriodicalId":127060,"journal":{"name":"2012 15th International Conference on Computer and Information Technology (ICCIT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124997983","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

Longest common subsequence problem for run-length-encoded strings 运行长度编码字符串的最长公共子序列问题

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.4304/jcp.9.8.1769-1775

S. Ahsan, Syeda Persia Aziz, Mohammad Sohel Rahman

引用次数: 5

Bi-lingual audio assistance supported screen reading software for the people with visual impairments 为视障人士提供双语音频辅助的屏幕阅读软件

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509807

Md. Ruhul Amin, Bijan Paul, Faisal Ahamed Khan

引用次数: 1

Design an intelligent robotic head to interacting with humans 设计一个与人类互动的智能机器人头部

2012 15th International Conference on Computer and Information Technology (ICCIT) Pub Date : 2012-12-01 DOI: 10.1109/ICCITECHN.2012.6509791

M. M. Hoque, Dipankar Das, Yoshinori Kobayashi, Y. Kuno

引用次数: 5