2012 4th Computer Science and Electronic Engineering Conference (CEEC)最新文献_第4页

SIP-based internetwork system between Future IP Networks and ZigBee based Wireless Personal Area Networks (WPAN) 基于sip的未来IP网络与基于ZigBee的无线个人区域网络(WPAN)互联系统

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375406

M. Alshamrani, H. Cruickshank, Zhili Sun, B. Elmasri, V. H. Tafreshi

{"title":"SIP-based internetwork system between Future IP Networks and ZigBee based Wireless Personal Area Networks (WPAN)","authors":"M. Alshamrani, H. Cruickshank, Zhili Sun, B. Elmasri, V. H. Tafreshi","doi":"10.1109/CEEC.2012.6375406","DOIUrl":"https://doi.org/10.1109/CEEC.2012.6375406","url":null,"abstract":"The internetwork system between Future IP Networks and ZigBee Wireless Networks has two main approaches; the SIP Proxy Based approach, and the ZigBee Stack Based approach. Because of the dynamic nature of the ZigBee devices, both approaches need to be improved to support the connectivity system and the Quality of Service (QoS) for different types of sensing and actuating applications. This paper proposes an initial design for a modified version of SIP (Mod-SIP) for ZigBee Stack Based approach. In addition, the paper introduces the Combined Approach which is an enhanced internetwork system used to provide more reliable and flexible connectivity system between ZigBee WPANs, and the IP clouds. An initial design and simulation efforts on OPNET implemented to study the current approaches and compare it with the proposed approaches. It shows that the SIP Proxy Based approach is not efficient for Future IP Networks applications as it has a high rate of End-to-End delays because of the lack of flexibility between SIP signaling system and the ZigBee WPANs. The initial investigations shown that the Combined approach can provide more reliable connectivity system with the support for the QoS for different types of instantaneous applications such as VoIP and video conferencing.","PeriodicalId":142286,"journal":{"name":"2012 4th Computer Science and Electronic Engineering Conference (CEEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127456252","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: 2

IMU/GPS based pedestrian localization 基于IMU/GPS的行人定位

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375373

Ling Chen, Huosheng Hu

引用次数: 25

Performance analysis of hybrid network for cloud datacenter 云数据中心混合网络性能分析

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375396

I. K. Musa, R. Nejabati, D. Simeonidou

引用次数: 3

The importance of social tie detection in socially-aware opportunistic routing 社会关系检测在社会意识机会路由中的重要性

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375392

N. Vastardis, Kun Yang

引用次数: 1

Adaptive VBR video for congested wireless home networks 拥挤无线家庭网络的自适应VBR视频

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375387

Ismail Amin Ali, M. Fleury, M. Ghanbari

引用次数: 0

Power option pricing via Fast Fourier Transform 基于快速傅里叶变换的电力期权定价

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375369

S. N. Ibrahim, J. O'Hara, N. Constantinou

{"title":"Power option pricing via Fast Fourier Transform","authors":"S. N. Ibrahim, J. O'Hara, N. Constantinou","doi":"10.1109/CEEC.2012.6375369","DOIUrl":"https://doi.org/10.1109/CEEC.2012.6375369","url":null,"abstract":"The basis of the option universe has been the European option, and much literature has been devoted to the extension of this option to create many new exotic options, including some with nonlinear payoffs. In this work, we study a European-style power option pricing, under a constant volatility dynamics, using the risk-neutral valuation within the Black-Scholes framework. Apart from applying the closed-form solution, we price the power option using the Fast Fourier Transform (FFT) technique which requires an analytical characteristic function of the power option. The resulting approximations are then compared with other numerical methods such as the Monte Carlo simulations, which show promising results and demonstrate the efficiency of the FFT technique as it can compute option prices for a whole range of strike prices. Besides, we show that there exists a relationship between the power call option and the power put option that is similar to the put-call parity relationship of vanilla options. We also find a transformation between the underlying asset and the power contract which enables us to obtain the pricing formulas of the power options from the vanilla options, as well as simplify the Greeks for power options. In addition to the Greeks derived from the closed-form solution, we present the Greeks using the pricing formula obtained from a characteristic function.","PeriodicalId":142286,"journal":{"name":"2012 4th Computer Science and Electronic Engineering Conference (CEEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125343650","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

Analysis of channel error upon selectively encrypted H.264 video 选择性加密H.264视频的信道误差分析

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375393

M. Asghar, M. Ghanbari, M. Fleury, M. Reed

引用次数: 4

Applying Gaussian mixture model on Discrete Cosine features for image segmentation and classification 应用高斯混合模型对离散余弦特征进行图像分割和分类

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375404

Hanan Al-Jubouri, H. Du, H. Sellahewa

{"title":"Applying Gaussian mixture model on Discrete Cosine features for image segmentation and classification","authors":"Hanan Al-Jubouri, H. Du, H. Sellahewa","doi":"10.1109/CEEC.2012.6375404","DOIUrl":"https://doi.org/10.1109/CEEC.2012.6375404","url":null,"abstract":"Content-based image retrieval (CBIR) is the process of searching digital images in a large database based on features, such as colour, texture and shape (so-called visual content) of a given query image. Consequently, retrieved images are the most similar in content to the query image. One effective approach is to segment an image into regions (i.e. clusters) of similar colour and texture to capture its visual content. This paper presents a study that applies an adaptive Expectation-Maximization algorithm on Gaussian Mixture Model (EM/GMM) to segment an image according to local colour and texture features extracted from Discrete Cosine Transform coefficients (DCT). The EM algorithm determines rather than imposes the effective number of clusters from the image's content. This paper evaluates the effectiveness of our method by conducting a number of image classification experiments using the k-nearest neighbor (k-NN) classifier. The experiments have shown a clearly marked improvement in image retrieval accuracy of using EM/GMM over the k-means algorithm. The paper is intended to demonstrate the effectiveness of adaptive GMM in segmenting an image and capturing regions of similar colour and texture within an image.","PeriodicalId":142286,"journal":{"name":"2012 4th Computer Science and Electronic Engineering Conference (CEEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115831492","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

A novel design flow for fault-tolerant computing 一种新的容错计算设计流程

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-06 DOI: 10.1109/CEEC.2012.6375375

J. Kimmitt, G. Wilson, D. Greaves

引用次数: 2

Autonomic cooperative communications for emergency networks 应急网络自主协同通信

2012 4th Computer Science and Electronic Engineering Conference (CEEC) Pub Date : 2012-12-01 DOI: 10.1109/GLOCOMW.2012.6477697

M. Wódczak

引用次数: 4