This paper presents a novel technology, that using multi-agent wireless network applied on wind turbine monitoring and control systems. It is an efficient technology to save wiring cost, compute locally, reduce the amount of data transmission, and improve reliability of wind turbines. (5 pages)
{"title":"Applying multi-agent wireless sensor network on wind turbine monitoring and control systems","authors":"Fanyu Meng, W. Michie, Ivan Andonovic, K. Kwong","doi":"10.1049/cp.2012.2105","DOIUrl":"https://doi.org/10.1049/cp.2012.2105","url":null,"abstract":"This paper presents a novel technology, that using multi-agent wireless network applied on wind turbine monitoring and control systems. It is an efficient technology to save wiring cost, compute locally, reduce the amount of data transmission, and improve reliability of wind turbines. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124616169","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}
Delivery of broadband telecommunication services in specific environments is often more easily realized by wireless systems than by roll out of cable networks. However, mobile and wireless broadband connectivity traditionally is also associated with extensive planning efforts and large investments. Wireless mesh network (WMN) technology, which is typically known for low infrastructure cost, rapid deployment, and simplified planning and maintenance is seen as a potential solution to this problem. Provision of security and Quality of Service (QoS) can be established by applying corresponding conceptual enhancements. Focus of this paper is to give an overview on technical achievements and application scenarios for carrier-grade WMNs. (5 pages)
{"title":"Wireless mesh networks for efficient provision of reliable broadband communication services","authors":"D. Hugo, D. Chieng","doi":"10.1049/cp.2012.2086","DOIUrl":"https://doi.org/10.1049/cp.2012.2086","url":null,"abstract":"Delivery of broadband telecommunication services in specific environments is often more easily realized by wireless systems than by roll out of cable networks. However, mobile and wireless broadband connectivity traditionally is also associated with extensive planning efforts and large investments. Wireless mesh network (WMN) technology, which is typically known for low infrastructure cost, rapid deployment, and simplified planning and maintenance is seen as a potential solution to this problem. Provision of security and Quality of Service (QoS) can be established by applying corresponding conceptual enhancements. Focus of this paper is to give an overview on technical achievements and application scenarios for carrier-grade WMNs. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124145879","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}
Conventional base station design does not longer fulfill network needs. New demand for energy efficiency, scalability, support for varying traffic load, flexibility in provided features and adoption to novel network architectures forces the “Plain Old Base Station” to change. Sophisticated modularization promises solution for the most of mentioned criteria. This paper presents a concept of a modular base station and advantages of scalable architecture paradigm SAfRAN. In this context particular emphasis is put on energy savings. Simulation results for macro base stations with different modularization levels and operation schemes give image of the relation between base station design and its energy consumption and promises excellent energy savings by a factor of 2 compared to conventional base stations. (6 pages)
{"title":"New concept of a modular wireless base station and benefits for network management and energy efficiency","authors":"Wieslawa M. Wajda","doi":"10.1049/cp.2012.2079","DOIUrl":"https://doi.org/10.1049/cp.2012.2079","url":null,"abstract":"Conventional base station design does not longer fulfill network needs. New demand for energy efficiency, scalability, support for varying traffic load, flexibility in provided features and adoption to novel network architectures forces the “Plain Old Base Station” to change. Sophisticated modularization promises solution for the most of mentioned criteria. This paper presents a concept of a modular base station and advantages of scalable architecture paradigm SAfRAN. In this context particular emphasis is put on energy savings. Simulation results for macro base stations with different modularization levels and operation schemes give image of the relation between base station design and its energy consumption and promises excellent energy savings by a factor of 2 compared to conventional base stations. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132657276","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}
Peng Hou Ho, D. W. Holtby, K. Lim, K. Kwong, D. Chieng, A. Ting, S. Chien
In a wireless multi-hop or mesh network, stations which are connected to Mesh Access Point (MAP) lesser hops from the gateway are expected to enjoy higher throughput and lower delay than stations connected to the MAP further hops away. To solve this issue, we introduce a technique to determine network layer queue size limit of ingress radio interfaces in the multi-radio MAPs. The intention is to partially control the transmit probability of forwarded packets during network congestion. End-to-end throughput and delay with four types of queue configurations were measured in an experimental testbed. The results show that a delay variance reduction of 38× between the first hop and the subsequent hops can be achieved using the proposed technique with a minimal drop (<0.05Mbps) in average throughput. (6 pages)
{"title":"End-to-end throughput and delay analysis of WiFi multi-hop network with deterministic offered load","authors":"Peng Hou Ho, D. W. Holtby, K. Lim, K. Kwong, D. Chieng, A. Ting, S. Chien","doi":"10.1049/cp.2012.2083","DOIUrl":"https://doi.org/10.1049/cp.2012.2083","url":null,"abstract":"In a wireless multi-hop or mesh network, stations which are connected to Mesh Access Point (MAP) lesser hops from the gateway are expected to enjoy higher throughput and lower delay than stations connected to the MAP further hops away. To solve this issue, we introduce a technique to determine network layer queue size limit of ingress radio interfaces in the multi-radio MAPs. The intention is to partially control the transmit probability of forwarded packets during network congestion. End-to-end throughput and delay with four types of queue configurations were measured in an experimental testbed. The results show that a delay variance reduction of 38× between the first hop and the subsequent hops can be achieved using the proposed technique with a minimal drop (<0.05Mbps) in average throughput. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124449010","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}
As the Web development moves into its second phase of the Web evolution, it has been decided to set up a Web 3.0 research group aimed at constructing an electronic commerce platform combined with an electronic tracking system for agricultural products based on Web 3.0. This paper outlines the concept of Web 3.0 and how to build an agriculture business related platform using Web 3.0 technology. The function of this platform is more practical compared with the platform based on Web 2.0. On the one hand, it standardizes the integration of information resources and optimizes the search function in the electronic commerce platform. Clients can check the states of safety and quality of the goods through the Internet browser access at real time with the electronic supervision. (5 pages)
{"title":"Electronic commerce and supervision platform in agriculture based on Web 3.0","authors":"Xiaoxiao Li, Jing Li, Sheng Dai, Chong Shen","doi":"10.1049/cp.2012.2103","DOIUrl":"https://doi.org/10.1049/cp.2012.2103","url":null,"abstract":"As the Web development moves into its second phase of the Web evolution, it has been decided to set up a Web 3.0 research group aimed at constructing an electronic commerce platform combined with an electronic tracking system for agricultural products based on Web 3.0. This paper outlines the concept of Web 3.0 and how to build an agriculture business related platform using Web 3.0 technology. The function of this platform is more practical compared with the platform based on Web 2.0. On the one hand, it standardizes the integration of information resources and optimizes the search function in the electronic commerce platform. Clients can check the states of safety and quality of the goods through the Internet browser access at real time with the electronic supervision. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133173717","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}
Seyed Dawood Sajjadi Torshizi, Ka Kien Lo, K. Kwong, A. Ting, M. Abbas, F. Hashim, Heng-Siong Lim
In this paper, the performance of IEEE 802.11n Wi-Fi technology at 5.18 GHz frequency in one of the rural areas in Malaysia, which is typically covered by dense tropical foliage, is evaluated and analyzed. To our best knowledge, studies on the performance of the IEEE 802.11n technology in foliage area have not been fully explored. We have conducted line-of-sight and non-line-of-sight measurements through the tropical foliage using directional high gain antennas to determine the throughput and other well-known performance metrics. It is observed that by utilizing the key features of 802.11n such as channel bonding and short guard interval, superior performance results can be achieved for both aforementioned situations. Precise correlation of utilized hardware specification and acquired results in different points is another aspect of this work. The findings are useful for future rural wireless deployment particularly with low height antenna using IEEE 802.11n technology. (6 pages)
{"title":"An investigation of vegetation effect on the performance of IEEE 802.11n technology at 5.18 GHz","authors":"Seyed Dawood Sajjadi Torshizi, Ka Kien Lo, K. Kwong, A. Ting, M. Abbas, F. Hashim, Heng-Siong Lim","doi":"10.1049/cp.2012.2069","DOIUrl":"https://doi.org/10.1049/cp.2012.2069","url":null,"abstract":"In this paper, the performance of IEEE 802.11n Wi-Fi technology at 5.18 GHz frequency in one of the rural areas in Malaysia, which is typically covered by dense tropical foliage, is evaluated and analyzed. To our best knowledge, studies on the performance of the IEEE 802.11n technology in foliage area have not been fully explored. We have conducted line-of-sight and non-line-of-sight measurements through the tropical foliage using directional high gain antennas to determine the throughput and other well-known performance metrics. It is observed that by utilizing the key features of 802.11n such as channel bonding and short guard interval, superior performance results can be achieved for both aforementioned situations. Precise correlation of utilized hardware specification and acquired results in different points is another aspect of this work. The findings are useful for future rural wireless deployment particularly with low height antenna using IEEE 802.11n technology. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126827783","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}
A new niche of densely populated, unprotected networks is becoming more prevalent in public areas such as Shopping Malls, defined here as independent open-access networks, which have attributes that make attack detection more challenging than in typical enterprise networks. To address these challenges, new detection systems which do not rely on knowledge of internal device state are investigated here. This paper shows that this lack of state information requires an additional metric (The exchange timeout window) for detection of WLAN Denial of Service Probe Flood attacks. Variability in this metric has a significant influence on the ability of a detection system to reliably detect the presence of attacks. A parameter selection method is proposed which is shown to provide reliability and repeatability in attack detection in WLANs. Results obtained from ongoing live trials are presented that demonstrate the importance of accurately estimating probe request and probe response timeouts in future Independent Intrusion Detection Systems. (6 pages)
{"title":"The effect of probe interval estimation on attack detection performance of a WLAN independent intrusion detection system","authors":"J. Milliken, Valerio Selis, K. Yap, A. Marshall","doi":"10.1049/cp.2012.2110","DOIUrl":"https://doi.org/10.1049/cp.2012.2110","url":null,"abstract":"A new niche of densely populated, unprotected networks is becoming more prevalent in public areas such as Shopping Malls, defined here as independent open-access networks, which have attributes that make attack detection more challenging than in typical enterprise networks. To address these challenges, new detection systems which do not rely on knowledge of internal device state are investigated here. This paper shows that this lack of state information requires an additional metric (The exchange timeout window) for detection of WLAN Denial of Service Probe Flood attacks. Variability in this metric has a significant influence on the ability of a detection system to reliably detect the presence of attacks. A parameter selection method is proposed which is shown to provide reliability and repeatability in attack detection in WLANs. Results obtained from ongoing live trials are presented that demonstrate the importance of accurately estimating probe request and probe response timeouts in future Independent Intrusion Detection Systems. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115288208","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}
Today, most modern web applications contain the combination of information and presentation from more than one server in order to make the web application more interesting and delivering acceptable performance. Thus, Cross-Domain communication is used to enable those servers to communicate and exchanging data to each other. In this paper, a survey has been made on some available techniques of Cross-Domain communication in order to be applied in a specific system, which is a real time web application system. The techniques included were chosen based on the current practice of most developers. A signalling based experiment on newly emerged techniques - post Message and CORS, besides Browser Plugin technique was also conducted. All these techniques have been compared to each other to identify the suitability of the techniques in order to be implemented in real time web application based on these requirements; functionalities separation, process invisibility, and data size independent. (6 pages)
{"title":"Cross-domain data exchanges for web application","authors":"M. Hisham, S. Ariffin, K. Choong, C. Lee","doi":"10.1049/cp.2012.2099","DOIUrl":"https://doi.org/10.1049/cp.2012.2099","url":null,"abstract":"Today, most modern web applications contain the combination of information and presentation from more than one server in order to make the web application more interesting and delivering acceptable performance. Thus, Cross-Domain communication is used to enable those servers to communicate and exchanging data to each other. In this paper, a survey has been made on some available techniques of Cross-Domain communication in order to be applied in a specific system, which is a real time web application system. The techniques included were chosen based on the current practice of most developers. A signalling based experiment on newly emerged techniques - post Message and CORS, besides Browser Plugin technique was also conducted. All these techniques have been compared to each other to identify the suitability of the techniques in order to be implemented in real time web application based on these requirements; functionalities separation, process invisibility, and data size independent. (6 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122688018","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}
The offline Dynamic Storage Allocation (DSA) problem is a well-known problem in combinatorial optimization. The problem is one of packing a set of blocks of arbitrary sizes on an area, with the objective of minimizing the area's usage along the y-axis, under the condition that the x-position of the blocks are fixed (as given in the input). The problem has uses in memory management, berth allocation, and can potentially be used in the allocation of bandwidth resources in a network. Li et al. [4] considered the case of the problem where the width of the blocks (their dimension along the y-axis) is to be no larger than a given number. They obtained several approximation algorithms for special cases of the problem, by first studying the feasibility of several subcases with further restriction, such as limiting the y-dimension of the area to pack the blocks. We believe that such feasibility results on subcases of the problem can help in obtaining algorithms for other special cases of the problem. In this paper we propose a method to automatically derive such results. Our implementation of a simplified version of the proposed method in C++ correctly duplicated many of the earlier results obtained by Li et al. (4 pages)
离线动态存储分配(DSA)问题是组合优化中一个众所周知的问题。这个问题是在一个区域内填充一组任意大小的块，目标是在块的x位置固定(如输入中所示)的条件下，沿着y轴最小化该区域的使用率。该问题用于内存管理、泊位分配，并且可能用于网络中带宽资源的分配。Li et al.[4]考虑的问题是，块的宽度(沿y轴的尺寸)不大于给定的数字。他们首先研究了几个具有进一步限制的子情况的可行性，例如限制了包装块的面积的y维，从而获得了该问题的几种特殊情况的近似算法。我们相信这些在该问题子情况上的可行性结果可以帮助我们得到该问题其他特殊情况下的算法。在本文中，我们提出了一种自动导出此类结果的方法。我们在c++中实现了该方法的简化版本，正确地复制了Li等人早期获得的许多结果。
{"title":"An automatic verifier for the feasibility of special cases of the offline dynamic storage allocation problem","authors":"Soon Aik Low, Yen Kaow Ng, Hung-Khoon Tan","doi":"10.1049/cp.2012.2104","DOIUrl":"https://doi.org/10.1049/cp.2012.2104","url":null,"abstract":"The offline Dynamic Storage Allocation (DSA) problem is a well-known problem in combinatorial optimization. The problem is one of packing a set of blocks of arbitrary sizes on an area, with the objective of minimizing the area's usage along the y-axis, under the condition that the x-position of the blocks are fixed (as given in the input). The problem has uses in memory management, berth allocation, and can potentially be used in the allocation of bandwidth resources in a network. Li et al. [4] considered the case of the problem where the width of the blocks (their dimension along the y-axis) is to be no larger than a given number. They obtained several approximation algorithms for special cases of the problem, by first studying the feasibility of several subcases with further restriction, such as limiting the y-dimension of the area to pack the blocks. We believe that such feasibility results on subcases of the problem can help in obtaining algorithms for other special cases of the problem. In this paper we propose a method to automatically derive such results. Our implementation of a simplified version of the proposed method in C++ correctly duplicated many of the earlier results obtained by Li et al. (4 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114798137","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}
Poo Kuan Hoong, I. Tan, Ong Kok Chien, Choo-Yee Ting
Having prior road condition knowledge for planned or unplanned journeys will be beneficial in terms of not only time but potentially cost. Being able to obtain real-time information will further enhance these benefits. Current systems rely on huge infrastructure investments by governments to install cameras, road sensors and billboards to keep motorists informed. These efforts can only be, at best, available at pre-identified hotspots. Radio broadcast is an alternative, where they rely on reports by other motorists. However, such reports are often delayed and not tailored to individual motorist. Seeing the limitations of existing approaches to obtain real-time road conditions, this research work leverages on mobile devices that provide context sensitive information to propose a predictive analytics framework based on a Bayesian Network for road condition prediction. This paper aims to contribute to (i) defining a set of evidences (variables) that could potentially be utilized for road condition prediction and (ii) construction of a Bayesian Network model to predict road conditions. In conclusion, we presented a novel approach to provide potentially unlimited coverage of road traffic conditions with substantially reduced infrastructure investments. (5 pages)
{"title":"Road traffic prediction using Bayesian networks","authors":"Poo Kuan Hoong, I. Tan, Ong Kok Chien, Choo-Yee Ting","doi":"10.1049/cp.2012.2098","DOIUrl":"https://doi.org/10.1049/cp.2012.2098","url":null,"abstract":"Having prior road condition knowledge for planned or unplanned journeys will be beneficial in terms of not only time but potentially cost. Being able to obtain real-time information will further enhance these benefits. Current systems rely on huge infrastructure investments by governments to install cameras, road sensors and billboards to keep motorists informed. These efforts can only be, at best, available at pre-identified hotspots. Radio broadcast is an alternative, where they rely on reports by other motorists. However, such reports are often delayed and not tailored to individual motorist. Seeing the limitations of existing approaches to obtain real-time road conditions, this research work leverages on mobile devices that provide context sensitive information to propose a predictive analytics framework based on a Bayesian Network for road condition prediction. This paper aims to contribute to (i) defining a set of evidences (variables) that could potentially be utilized for road condition prediction and (ii) construction of a Bayesian Network model to predict road conditions. In conclusion, we presented a novel approach to provide potentially unlimited coverage of road traffic conditions with substantially reduced infrastructure investments. (5 pages)","PeriodicalId":383835,"journal":{"name":"IET International Conference on Wireless Communications and Applications","volume":"68 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120974261","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}
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