2012 Computing, Communications and Applications Conference最新文献_第4页

A data caching approach for sensor applications 传感器应用的数据缓存方法

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154857

M. Aalsalem, K. Almi'ani, B. Alqaralleh

{"title":"A data caching approach for sensor applications","authors":"M. Aalsalem, K. Almi'ani, B. Alqaralleh","doi":"10.1109/COMCOMAP.2012.6154857","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154857","url":null,"abstract":"In sensor network applications, data gathering mechanisms, which are based on multi-hop forwarding can be expensive in terms of energy. This limitation reduces the lifetime of the network and challenges the use of sensor networks for applications that demand a predefined operational lifetime. To avoid this problem, the benefits of using mobile gateway to prolong sensor life-time have been explored in the literature. However, practical considerations such as the gateway speed and route planning, sensor buffer size and data frequency generation constraints impose limits on the mobile elements. In this work, we consider the natural hybrid solution that combines the two approaches of mobile gateways and multi-hop forwarding to address more constraints for sensor applications. We provide algorithmic solutions that attempt to balance the benefits of both approaches. Based on a given predetermined time deadline, a gateway tour will be established to involve a subset of the sensors. These selected sensors will work as gathering points and will aggregate the other sensors' data. The gathering points/nodes are selected with the aim of reducing the energy expenditures due to multi-hop forwarding. We also present a heuristic-based solution and validate its performance through an extensive set of experiments.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130356147","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: 3

Capacity bounds and stochastic resonance for binary input binary output channels 二元输入二元输出通道的容量边界和随机共振

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154003

I. S. Moskowitz, P. Cotae, P. Safier, D. L. Kang

引用次数: 7

Pivot viewer based visualization of information analysis 基于Pivot查看器的可视化信息分析

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154871

Yue Zhao

引用次数: 2

A novel data collection scheme with Cluster-based Separate Network Coding for WSNs 基于聚类的分离网络编码的无线传感器网络数据采集方案

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6153996

Xiucai Ye, Jie Li, Li Xu, M. Guizani

引用次数: 2

Performances analysis of SEC based transmit diversity systems with MRC receivers 基于SEC的MRC接收机发射分集系统性能分析

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154005

H. Chamkhia, M. Hasna, R. Hamila

引用次数: 3

A PAPR reduction technique based on Golay sequences and Fractional Fourier Transform for OFDM systems 基于Golay序列和分数阶傅里叶变换的OFDM系统PAPR降低技术

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154877

C. Rezgui, S. Jarboui, K. Grayaa

引用次数: 16

Graph based low complexity MIMO detection with intermediate hard-decision 基于中间硬判决的图的低复杂度MIMO检测

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154876

Kangwoon Seo, Seokhyun Yoon

引用次数: 0

RTT fair congestion control algorithm for satellite interactive networks 卫星交互网络RTT公平拥塞控制算法

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154868

M. Shin, ManKyu Park, Deockgil. Oh, Byungchul Kim, Jae-yong Lee

{"title":"RTT fair congestion control algorithm for satellite interactive networks","authors":"M. Shin, ManKyu Park, Deockgil. Oh, Byungchul Kim, Jae-yong Lee","doi":"10.1109/COMCOMAP.2012.6154868","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154868","url":null,"abstract":"This paper presents the adaptive logarithmic increase and adaptive decrease algorithm, called A-LIAD, as an alternative for the current TCP congestion control algorithm. We defined new increasing function in the fashion of logarithm depending on the increasing factor α which is different from the other logarithmic increase algorithm adopting the fixed vale of α = 2 leading to binary increase. The α value is derived in the function of RTT through the analysis. With the modification of increasing function applied for the congestion avoidance phase, hybrid scheme is also presented for the slow start phase. From this hybrid scheme, we can avoid overshooting problem in the slow start phase even without SACK option. To verify the feasibility of the algorithm for the deployment in the high speed and long distance network, several aspects are evaluated through the NS-2 simulation. We performed simulations for intra-fairness and inter-fairness as well as the friendliness in the different conditions of varying RTTs, bandwidth and PER. From these simulations, we showed that although A-LIAD is not the best in the all aspects, it provides competitive performance in almost all aspects especially in the start-up and packet loss impact and thus can be an alternative TCP congestion control algorithm for the high BDP networks including satellite network.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125014415","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: 0

Forecasting stock price based on fuzzy time-series with equal-frequency partitioning and fast Fourier transform algorithm 基于等频分割和快速傅立叶变换算法的模糊时间序列股票价格预测

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154806

Bo-Tsuen Chen, Mu-Yen Chen, Min-Hsuan Fan, Chia-Chen Chen

{"title":"Forecasting stock price based on fuzzy time-series with equal-frequency partitioning and fast Fourier transform algorithm","authors":"Bo-Tsuen Chen, Mu-Yen Chen, Min-Hsuan Fan, Chia-Chen Chen","doi":"10.1109/COMCOMAP.2012.6154806","DOIUrl":"https://doi.org/10.1109/COMCOMAP.2012.6154806","url":null,"abstract":"The prediction of stock markets is an important and widely research issue since it could be had significant benefits and impacts, and the fuzzy time-series models have been often utilized to be the forecast models to make reasonably accurate predictions. For promoting the forecasting performance of fuzzy time-series models, this paper proposed a new model, which incorporates the concept of the equal-frequency partitioning and fast Fourier transform algorithm, and it's never be adopt on fuzzy time-series before. In order to evaluate our proposed approach, the source data was using actual trading data from Taiwan Stock Exchange (TAIEX), and the experimental period is selected from 1997 to 2003 as the datasets for verifications. Finally, the experimental results showed that our proposed approach was effective in improving the forecasting errors on forecasting stock price significantly. Furthermore, the performances in terms of root mean squared error (RMSE) indicate that the proposed model is superior to the compared models suggested by Chen (1996), Yu (2005), and Chang et al. (2011) earlier. It is evident that the proposed model is a good approach to improve the forecasting performance fuzzy time-series models.","PeriodicalId":281865,"journal":{"name":"2012 Computing, Communications and Applications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130178662","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: 7

A simple and cheap end-to-end voice encryption framework over GSM-based networks 基于gsm网络的简单廉价的端到端语音加密框架

2012 Computing, Communications and Applications Conference Pub Date : 2012-02-21 DOI: 10.1109/COMCOMAP.2012.6154800

Prawit Chumchu, A. Phayak, P. Dokpikul

引用次数: 8