2008 Third International Conference on Systems and Networks Communications最新文献

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Employing of Clustering Algorithm CWN-PAM in Mobile Network Planning 聚类算法CWN-PAM在移动网络规划中的应用
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.71
Manal El Harby, L. F. Ibrahim
{"title":"Employing of Clustering Algorithm CWN-PAM in Mobile Network Planning","authors":"Manal El Harby, L. F. Ibrahim","doi":"10.1109/ICSNC.2008.71","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.71","url":null,"abstract":"With the rapid development in mobile network we need effective network planning tool to satisfy the need of customers. However, deciding upon the optimum placement for the base stations (BS) to achieve best services while reducing the cost is a complex task requiring vast computational resource. This paper addresses antenna placement problem or the cell planning problem, involves locating and configuring infrastructure for mobile networks. The Cluster Partitioning Around Medoids (PAM) original algorithm has been modified and a new algorithm M-PAM (Modified-Partitioning Around Medoids) has been proposed by the authors in a recent work. In the present paper, the M-PAM algorithm is modified and a new algorithm CWN-PAM (Clustering with Weighted Node-Partitioning Around Medoids) has been proposed to satisfy the requirements and constraints. Implementation of this algorithm to a real case study is presented. Results demonstrate the effectiveness and flexibility of the modifying algorithm in tackling the important problem of mobile network planning.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124868115","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: 10
Blind a Daptive Channel Shortening with a Generalized Lag-Hopping Algorithm Which Employs Squared Auto-Correlation Minimization [GLHSAM] 基于平方自相关最小化的广义跳滞后盲信道缩短算法[GLHSAM]
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.60
K. Maatoug, J. Chambers
{"title":"Blind a Daptive Channel Shortening with a Generalized Lag-Hopping Algorithm Which Employs Squared Auto-Correlation Minimization [GLHSAM]","authors":"K. Maatoug, J. Chambers","doi":"10.1109/ICSNC.2008.60","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.60","url":null,"abstract":"A generalized blind lag-hopping adaptive channel shortening (GLHSAM) algorithm based upon squared auto-correlation minimization is proposed. This algorithm provides the ability to select a level of complexity at each iteration between the sum-squared auto-correlation minimization (SAM) algorithm due to Martin and Johnson and the single lag auto-correlation minimization (SLAM) algorithm proposed by Nawaz and Chambers whilst guaranteeing convergence to high signal to interference ratio (SIR). At each iteration a number of unique lags are chosen randomly from the available range so that on the average GLHSAM has the same cost as the SAM algorithm. The performance of the proposed GLHSAM algorithm is confirmed through simulation studies.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123774011","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
A Novel Prioritized Control Scheme Using Random Access Period Control for Wide Area Ubiquitous Wireless Networks 一种基于随机访问周期控制的广域泛在无线网络优先控制方案
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.16
Y. Shimizu, F. Nuno, Kazuji Watanabe
{"title":"A Novel Prioritized Control Scheme Using Random Access Period Control for Wide Area Ubiquitous Wireless Networks","authors":"Y. Shimizu, F. Nuno, Kazuji Watanabe","doi":"10.1109/ICSNC.2008.16","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.16","url":null,"abstract":"In wide area ubiquitous wireless networks, most wireless terminals (WTs) will transmit small amounts of data at comparatively long intervals. Therefore, each AP must be capable of accommodating a great many WTs. Moreover, this network is required to accommodate a variety of services; some services need to be prioritized. In this paper, we propose a novel prioritized control scheme that applies random access to wide area ubiquitous wireless networks. Two kinds of priority classes are considered; high priority (HP) class and low priority (LP) class. The transmission performance of HP class must be guaranteed regardless of LP class traffic situation. To meet this requirement, the proposed scheme isolates the random access (RA) periods of the two classes and controls the RA period for HP class according to the HP class traffic situation, which is predicted from the HP event notification history (event here means that a WT has HP traffic to send). This paper also clarifies the problems of the conventional scheme and reveals the transmission performance of the conventional and proposed scheme by computer simulation.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126521782","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 Survey of Available Tools for Developing Wireless Sensor Networks 开发无线传感器网络的可用工具综述
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.15
Guodong Teng, Kougen Zheng, Wei Dong
{"title":"A Survey of Available Tools for Developing Wireless Sensor Networks","authors":"Guodong Teng, Kougen Zheng, Wei Dong","doi":"10.1109/ICSNC.2008.15","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.15","url":null,"abstract":"In recent years, wireless sensor networks (WSNs) have been an area of significant research. The challenges regarding programming, monitoring, managing WSNs are increasing dramatically, and challenges for the corresponding tools as well. This paper covers the whole scope of the WSN development life cycle and describes the major components for developing WSNs, then provides a survey of some of the software tools currently available to assist in the development of WSNs, and finally presents challenges for developing WSNs. These challenges for future development tools of WSNs provide some motivations and objectives.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131366289","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: 10
Space Imaging Infrastructure Development of PUBSAT and NERVA Orbital Vehicle PUBSAT和NERVA轨道飞行器空间成像基础设施发展
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.53
R. Rugescu, J. Kohlenberg, M. Prathaban
{"title":"Space Imaging Infrastructure Development of PUBSAT and NERVA Orbital Vehicle","authors":"R. Rugescu, J. Kohlenberg, M. Prathaban","doi":"10.1109/ICSNC.2008.53","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.53","url":null,"abstract":"Imaging infrastructure development for the PUBSAT nanosatellite and the associated NERVA orbital nano-launcher are presented, with emphasize on challenges related to environmental and political problems of high atmospheric flight on the seashore of western Black Sea. Means of laboratory modeling of the orbital flight environment are presented, suited to development within the existing experimental facilities of the University \"Politehnica\" of Bucharest. Emphasize is made to the optical system requirements, especially those related to attitude control of the satellite. Suborbital flights with recoverable payload are considered for further development of the imaging system, with potential launching from the existing flight test field on the Romanian Black Sea western shore. This phase of development follow the ground-based laboratory modeling of the attitude command system. The real scale laboratory model concept of the PUBSAT is presented, with capability of three-axis attitude control demonstration on the ground, with weightlessness simulation by air-bearings. The study is part of the UPB program of developing a low cost orbital system for applications in enhanced environmental policies in cooperation with Greece, USA and France.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121114746","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
Elder Care Architecture 长者护理建筑
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.66
Isabel Marcelino, J. Barroso, J. Bulas-Cruz, António Pereira
{"title":"Elder Care Architecture","authors":"Isabel Marcelino, J. Barroso, J. Bulas-Cruz, António Pereira","doi":"10.1109/ICSNC.2008.66","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.66","url":null,"abstract":"As we observe society in our days, we can see that people live longer; this means that we have an older population. As we know, elder are more likely to have health issues. The special needs presented by elder are gaining a major concern from all of us. Another tendency of our society is the lack of time that people demonstrate and, as a consequence, the lack of time reflects when families can't take care of their own elders. Many solutions are being presented in order to solve this problem. Some of them are taking advantage of the new technology developments in body sensor network area. In this paper we proposed an architecture of a system called elder care. The elder care solution has two primary goals: monitoring vital signs, sending alerts to family and specialized help and provide a social network in order to wrap all elder to avoid social isolation.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128756747","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: 18
Modeling and Design of a Novel Backward-Wave Scanning-Beam Antenna Based on Negative Refractive Index Material Structures 基于负折射率材料结构的新型后向波扫描波束天线建模与设计
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.35
A. Hamdi, A. Kouki, A. Samet
{"title":"Modeling and Design of a Novel Backward-Wave Scanning-Beam Antenna Based on Negative Refractive Index Material Structures","authors":"A. Hamdi, A. Kouki, A. Samet","doi":"10.1109/ICSNC.2008.35","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.35","url":null,"abstract":"A new field of physics has appeared with the emergence of materials known as \"Left handed materials\" (LHM) or \"metamaterials\". These materials show very particular characteristics. Their index of refraction has a negative value, which results in the reversal of Snell's law. Whereas, in traditional material the Poynting vector S always forms a right- handed triplet with E and H (S = E Lambda H). In the left handed media, the Poynting vector S and the wave vector K are in opposite directions. Thus, the wave moves in the direction opposite to the direction of the energy flow: phase speed and group speed are anti- parallel. Therefore, a left-handed media is artificial and does not exist in nature. Indeed, when these materials are inserted into a guided wave device, one obtains the backward-wave effect. The goal of this work is to study more in details this physical phenomenon. To undertake this study, this paper presents also the design of a 10 GHz beam-scanning CPW-Antenna fabricated on metamaterial support.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122072896","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
Some Problems & Methods for Remotely Controllable Automatic Home Security Systems 远程控制自动家庭安防系统的一些问题与方法
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.41
R. Hariprakash, G. Ramu, T. Rajakumari, S. Ananthi, K. Padmanabhan
{"title":"Some Problems & Methods for Remotely Controllable Automatic Home Security Systems","authors":"R. Hariprakash, G. Ramu, T. Rajakumari, S. Ananthi, K. Padmanabhan","doi":"10.1109/ICSNC.2008.41","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.41","url":null,"abstract":"Security systems for home or industry have a lot to perform today and the data collection and fusion demands careful processing and discerning of security problems. The paper examines signals that are created to perform multiple surveillance systems through a common remotely monitored system. The problems of data detection without errors becomes important to avoid falsely discerning insecurity levels. The paper examines methods for this. Among this is considered the technique for encoding using the Hilbert Transform. This works better with Doppler based security sensors with lesser extra bits of transmission for error free reception at the monitoring computer station.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131461439","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
Adaptive DSR Protocol with Cooperative Agents for Different Mobility and Traffic Patterns 不同移动和流量模式下具有协作代理的自适应DSR协议
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.75
Mehdi Rajabzadeh, F. Adibniya, M. Ghasemzadeh
{"title":"Adaptive DSR Protocol with Cooperative Agents for Different Mobility and Traffic Patterns","authors":"Mehdi Rajabzadeh, F. Adibniya, M. Ghasemzadeh","doi":"10.1109/ICSNC.2008.75","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.75","url":null,"abstract":"The autonomous character of mobile ad-hoc networks (MANET) poses significant challenges on network communications. Some of the main challenges in this area related to routing protocols. To make MANETs adaptive to different mobility and traffic patterns, this paper proposes a novel routing scheme which is utilized cross layer design and attempts to develop DSR routing protocol in MANETs with simple node-level management behavior resulting in overall system optimization. We develop a probabilistic multipath routing algorithm and incorporates factors like signal strength into the route metrics so as to predict link breaks before they actually occur. In addition to signal strength and shortest-path metrics, our algorithm updates the goodness of choosing a particular path based on congestion measurement and energy level in each node. By All of the above improvements in conventional DSR, the simulation results testify that our new Robust DSR algorithm can be suitable in ad-hoc situations.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130954017","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
Multi-user Frequency Pre-filtering Technique for MIMO SFBC MC-CDMA Systems MIMO SFBC MC-CDMA系统的多用户频率预滤波技术
2008 Third International Conference on Systems and Networks Communications Pub Date : 2008-10-26 DOI: 10.1109/ICSNC.2008.52
Adão Silva, Elidio Tomas da Silva, A. Gameiro
{"title":"Multi-user Frequency Pre-filtering Technique for MIMO SFBC MC-CDMA Systems","authors":"Adão Silva, Elidio Tomas da Silva, A. Gameiro","doi":"10.1109/ICSNC.2008.52","DOIUrl":"https://doi.org/10.1109/ICSNC.2008.52","url":null,"abstract":"This paper deals with downlink space-frequency block coding (SFBC) with a multi-user pre-filtering technique for MIMO MC-CDMA systems. We consider the use of an antenna array at both the base station (BS) and the user terminal (UT). The space-frequency block codes allow that the spatial diversity be efficiently exploited and the linear multi-user frequency pre-filtering technique modulates the transmitted signal to eliminate the effects of multiple access interference (MAI) and channel distortions at the user terminals. The aim of this technique is to transfer the most computational complexity from UT to the BS, keeping the first one at very low complexity. The performance of the proposed scheme is evaluated, considering typical pedestrian scenario and both uncoded data and channel turbo coding based on UMTS specifications.","PeriodicalId":105399,"journal":{"name":"2008 Third International Conference on Systems and Networks Communications","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133189031","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
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