Ikbal Chammakhi Msadaa, Pasquale Cataldi, F. Filali
Intelligent Transportation Systems (ITS) have been under development since the 80’s as part of a global strategy for solving many of our modern life transportation problems. These systems enable people to reach their destinations in a safe, efficient, and comfortable way. In order to reach that goal, several radio access technologies (RAT) such as UMTS, WiFi, WiMAX and 5.9 GHz have been proposed for next generation ITS. Yet, the coexistence of these technologies in the vehicles raises the challenge of choosing the most appropriate RAT. In order to address this problem and define optimal rules for the communication technology selection, comparisons on the network performance have to be done. In this paper, we compare two of the most promising infrastructure-based wireless technologies: mobile WiMAX (based on IEEE 802.16e standard) and the 5.9 GHz technology based on the upcoming IEEE 802.11p standard. We investigate, through simulation, the potential and limitations of both technologies as a communication media for vehicle-to-infrastructure (V2I) communications. The performance of the two systems is evaluated for different vehicle speeds, traffic data rates, and network deployments.
{"title":"A Comparative Study between 802.11p and Mobile WiMAX-based V2I Communication Networks","authors":"Ikbal Chammakhi Msadaa, Pasquale Cataldi, F. Filali","doi":"10.1109/NGMAST.2010.45","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.45","url":null,"abstract":"Intelligent Transportation Systems (ITS) have been under development since the 80’s as part of a global strategy for solving many of our modern life transportation problems. These systems enable people to reach their destinations in a safe, efficient, and comfortable way. In order to reach that goal, several radio access technologies (RAT) such as UMTS, WiFi, WiMAX and 5.9 GHz have been proposed for next generation ITS. Yet, the coexistence of these technologies in the vehicles raises the challenge of choosing the most appropriate RAT. In order to address this problem and define optimal rules for the communication technology selection, comparisons on the network performance have to be done. In this paper, we compare two of the most promising infrastructure-based wireless technologies: mobile WiMAX (based on IEEE 802.16e standard) and the 5.9 GHz technology based on the upcoming IEEE 802.11p standard. We investigate, through simulation, the potential and limitations of both technologies as a communication media for vehicle-to-infrastructure (V2I) communications. The performance of the two systems is evaluated for different vehicle speeds, traffic data rates, and network deployments.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121758400","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}
Digital evidence is proving increasingly pivotal in criminal investigations whether it is an arrest for a minor offence or a more serious activity. As people rely on mobile phones and their many functions, the digital trail of evidence continues to grow. The forensic examination of mobile phones is a relatively new discipline and research activity into the forensic analysis of these types of phones, and the information they may contain, is limited when compared to the exponential increase in ownership of these types of phones. The amount of ubiquitous information stored on mobile phones will continue to grow as their processing power and storage capacity increases and the phones incorporate more functionality and applications. Guidelines, publications and research into the more traditional digital forensic examination of computer hard disks are well documented, whereas for mobile phones, the publications and research are not that established. The aim of this paper is to examine the current methods involved in the forensic examination of mobile phones and to identify those areas of mobile phone examination where the current United Kingdom ACPO guidelines and the United States of America NIST guidelines are unclear or insubstantial.
{"title":"An Analysis of the Digital Forensic Examination of Mobile Phones","authors":"P. Thomas, P. Owen, D. McPhee","doi":"10.1109/NGMAST.2010.17","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.17","url":null,"abstract":"Digital evidence is proving increasingly pivotal in criminal investigations whether it is an arrest for a minor offence or a more serious activity. As people rely on mobile phones and their many functions, the digital trail of evidence continues to grow. The forensic examination of mobile phones is a relatively new discipline and research activity into the forensic analysis of these types of phones, and the information they may contain, is limited when compared to the exponential increase in ownership of these types of phones. The amount of ubiquitous information stored on mobile phones will continue to grow as their processing power and storage capacity increases and the phones incorporate more functionality and applications. Guidelines, publications and research into the more traditional digital forensic examination of computer hard disks are well documented, whereas for mobile phones, the publications and research are not that established. The aim of this paper is to examine the current methods involved in the forensic examination of mobile phones and to identify those areas of mobile phone examination where the current United Kingdom ACPO guidelines and the United States of America NIST guidelines are unclear or insubstantial.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125278050","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}
3GPP standards release 8 and 9 have introduced Long Term Evolution (LTE) Radio Access Technology (RAT) to provide broadband services to end users. LTE is an all-IP packet switched technology. The evolution path towards LTE can be done in two ways. First, for GSM only operators, internetworking between GSM networks and LTE is envisioned to go through IP Multimedia Subsystem (IMS). Second, for 3G/3.5G operators the internetworking can be utilized through Packet Data Network Gateway (P-GW). LTE deployment and internetworking with the existing GSM/EDGE Radio Access Technology (GERAN) and / or UMTS Terrestrial Radio Access Networks (UTRAN) will bring out several technical issues. First, internetworking between GERAN and LTE will highlight the control of voice calls over IP networks. However, most operators agreed to support VoLTE. Second, LTE will be deployed in the same frequency band as of GERAN/UTRAN which will cause signalling problems. In this paper, first, based on service requests, we propose an algorithm to optimize the available network resources in multi radio deployment. Second, single radio IMS enhanced user equipment is modelled, and finally, a voice call continuity study will be conducted through a Discrete Event Simulator (DES) based on multi service environment.
{"title":"LTE Capacity and Service Continuity in Multi Radio Environment","authors":"B. Abuhaija, K. Al-Begain","doi":"10.1109/NGMAST.2010.35","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.35","url":null,"abstract":"3GPP standards release 8 and 9 have introduced Long Term Evolution (LTE) Radio Access Technology (RAT) to provide broadband services to end users. LTE is an all-IP packet switched technology. The evolution path towards LTE can be done in two ways. First, for GSM only operators, internetworking between GSM networks and LTE is envisioned to go through IP Multimedia Subsystem (IMS). Second, for 3G/3.5G operators the internetworking can be utilized through Packet Data Network Gateway (P-GW). LTE deployment and internetworking with the existing GSM/EDGE Radio Access Technology (GERAN) and / or UMTS Terrestrial Radio Access Networks (UTRAN) will bring out several technical issues. First, internetworking between GERAN and LTE will highlight the control of voice calls over IP networks. However, most operators agreed to support VoLTE. Second, LTE will be deployed in the same frequency band as of GERAN/UTRAN which will cause signalling problems. In this paper, first, based on service requests, we propose an algorithm to optimize the available network resources in multi radio deployment. Second, single radio IMS enhanced user equipment is modelled, and finally, a voice call continuity study will be conducted through a Discrete Event Simulator (DES) based on multi service environment.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114256968","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}
In recent years, an ever-increasing growth in international air traffic has made airports the most complex and busiest built environments known. Provisioning quality of service (QoS) to passengers and staff, in such a dynamic environment, is extremely challenging. However, having previously designed and determined the passenger flow [1,2] according to flight departures, in this paper we propose an ad hoc network scenario to disseminate important information to staff and travellers for business, security and social reasons. This setup not only helps us to provide useful information to the users in a cost-effective way, it also enables us to study some unknown parameters such as the impact of buffer size and battery consumption in this dynamic environment.
{"title":"Performance Analysis of an Ad Hoc Network in the INtelligent Airport","authors":"I. E. Ahmed, B. Qazi, J. Elmirghani","doi":"10.1109/NGMAST.2010.47","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.47","url":null,"abstract":"In recent years, an ever-increasing growth in international air traffic has made airports the most complex and busiest built environments known. Provisioning quality of service (QoS) to passengers and staff, in such a dynamic environment, is extremely challenging. However, having previously designed and determined the passenger flow [1,2] according to flight departures, in this paper we propose an ad hoc network scenario to disseminate important information to staff and travellers for business, security and social reasons. This setup not only helps us to provide useful information to the users in a cost-effective way, it also enables us to study some unknown parameters such as the impact of buffer size and battery consumption in this dynamic environment.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129344170","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}
WiMAX (Worldwide Interoperability Microwave Access) has been one of the most important technologies in telecommunication networks during last few years. Mobility is the most challenging research in WiMAX networks that are highlighted in broadband wireless communications. There is more demand for new data services which need high data rate. But the long interruption of handovers is not acceptable for this kind of services. The real time services like: IPTV and VoIP are sensitive to packet loss. This paper is focused on procedures and the interruption time of full handover in mobile WiMAX. All events that affect on handover during movement of a mobile station will be considered. We have presented a new algorithm to improve the handover interruption time and to decrease the amount of signaling transaction during the handover procedure. In this algorithm we have used GPS (Global Position system) to perform handover faster. Our focus in this algorithm is on the distance between MS (Mobile Station) and BS (Base Station). The MS finds its position using GPS and calculates distance to the SBS (Source Base Station) and neighbor BSs. In the next step, MS selects the target BS according to the distance.
{"title":"Improved Handover Interruption Time in WiMAX, Using GPS","authors":"H. Pirkomaji, V. T. Vakily","doi":"10.1109/NGMAST.2010.48","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.48","url":null,"abstract":"WiMAX (Worldwide Interoperability Microwave Access) has been one of the most important technologies in telecommunication networks during last few years. Mobility is the most challenging research in WiMAX networks that are highlighted in broadband wireless communications. There is more demand for new data services which need high data rate. But the long interruption of handovers is not acceptable for this kind of services. The real time services like: IPTV and VoIP are sensitive to packet loss. This paper is focused on procedures and the interruption time of full handover in mobile WiMAX. All events that affect on handover during movement of a mobile station will be considered. We have presented a new algorithm to improve the handover interruption time and to decrease the amount of signaling transaction during the handover procedure. In this algorithm we have used GPS (Global Position system) to perform handover faster. Our focus in this algorithm is on the distance between MS (Mobile Station) and BS (Base Station). The MS finds its position using GPS and calculates distance to the SBS (Source Base Station) and neighbor BSs. In the next step, MS selects the target BS according to the distance.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128713734","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}
M. Cao, M. Álvarez-Campana, R. P. Leal, J. Navarro, Eduardo Polo
The IP Multimedia Subsystem (IMS) is considered the current Service Delivery Platform standard for providing multimedia services in Next Generation Networks (NGN). Although fleet management services are traditionally focused on voice communications, they are evolving towards broadband multimedia ones. For this reason, this paper presents an open IMS-based platform that provides advanced multimedia professional services in the aforementioned scenario. After a detailed analysis of the fleet communication requirements, the IMS-based architecture of the platform is presented. Then, the deployed services are described, from the basic ones to those more advanced, e.g. Push-To-Talk (PTT) and videoconferencing. It stands out the feature of the platform, which provides an environment that facilitates the development, deployment and integration of new services. We finally discuss the importance of the contributions made by the platform for the fleet management scenarios.
{"title":"An IMS-Based Testbed for Fleet Management Services","authors":"M. Cao, M. Álvarez-Campana, R. P. Leal, J. Navarro, Eduardo Polo","doi":"10.1109/NGMAST.2010.24","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.24","url":null,"abstract":"The IP Multimedia Subsystem (IMS) is considered the current Service Delivery Platform standard for providing multimedia services in Next Generation Networks (NGN). Although fleet management services are traditionally focused on voice communications, they are evolving towards broadband multimedia ones. For this reason, this paper presents an open IMS-based platform that provides advanced multimedia professional services in the aforementioned scenario. After a detailed analysis of the fleet communication requirements, the IMS-based architecture of the platform is presented. Then, the deployed services are described, from the basic ones to those more advanced, e.g. Push-To-Talk (PTT) and videoconferencing. It stands out the feature of the platform, which provides an environment that facilitates the development, deployment and integration of new services. We finally discuss the importance of the contributions made by the platform for the fleet management scenarios.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128811465","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}
Service Oriented Architecture (SOA) has a capability to avoid problems with managing supply chain, such as data inconsistencies, multiple channels of update and when Different lines of business have different technologies. SOA allows corporations to integrate the supply chain applications of an enterprise, and hence building a competitively differentiated, agile and interoperable supply chain. As a result SOA adoption leads to achieve better supply chain performance. This paper aims to review the integration of supply chains using SOA approach in particular, to support agile reconfigurable supply chains.
{"title":"Motivation for Integrating Supply Chains Using Service Oriented Architecture Approach","authors":"Rand Obeidat, Zakareia Zaatreh","doi":"10.1109/NGMAST.2010.30","DOIUrl":"https://doi.org/10.1109/NGMAST.2010.30","url":null,"abstract":"Service Oriented Architecture (SOA) has a capability to avoid problems with managing supply chain, such as data inconsistencies, multiple channels of update and when Different lines of business have different technologies. SOA allows corporations to integrate the supply chain applications of an enterprise, and hence building a competitively differentiated, agile and interoperable supply chain. As a result SOA adoption leads to achieve better supply chain performance. This paper aims to review the integration of supply chains using SOA approach in particular, to support agile reconfigurable supply chains.","PeriodicalId":184193,"journal":{"name":"2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127544192","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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