2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies最新文献_第5页

Load Adaptive Caching Points for a Content Distribution Network 为内容分发网络加载自适应缓存点

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.24

Samaneh Igder, Hamdi Idjmayyel, B. Qazi, S. Bhattacharya, J. Elmirghani

{"title":"Load Adaptive Caching Points for a Content Distribution Network","authors":"Samaneh Igder, Hamdi Idjmayyel, B. Qazi, S. Bhattacharya, J. Elmirghani","doi":"10.1109/NGMAST.2015.24","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.24","url":null,"abstract":"The unprecedented growth in content demand on smartphones has significantly increased the energy consumption of current cellular and backbone networks. Apart from achieving stringent carbon footprint targets, provisioning high data rates to city vehicular users while maintaining quality of service (QoS) remains a serious challenge. In previous work, to support content delivery at high data rates, the number and locations of caching points (CPs) within a content distribution network (CDN) were optimized while reducing the operational energy consumption compared to typical cellular networks. Further reduction in energy consumption may be possible through sleep cycles, which reduces transmission energy consumption. However, sleep cycles degrade the quality of service. Therefore, in this paper, we propose a novel load adaptation technique for a CP which not only enhances content download rate but also reduces transmission energy consumption through random sleep cycles. Unlike a non-load adaptive (deterministic) CP, the performance results reveal that the load adaptive CP achieves considerably lower average piece delay (approximately 60% on average during the day), leveraging the introduction of random sleep cycles to save transmission energy. The proposed CP saves up to 84% transmission energy during off-peak hours and 33% during the whole day while fulfilling content demand in a city vehicular environment.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124709137","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

Security for Future Software Defined Mobile Networks 未来软件定义移动网络的安全性

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.43

Madhusanka Liyanage, Ijaz Ahmed, M. Ylianttila, Jesus Llorente Santos, R. Kantola, Oscar Lopez Perez, Mikel Uriarte Itzazelaia, Edgardo Montes de Oca, Asier Valtierra, C. Jimenez

{"title":"Security for Future Software Defined Mobile Networks","authors":"Madhusanka Liyanage, Ijaz Ahmed, M. Ylianttila, Jesus Llorente Santos, R. Kantola, Oscar Lopez Perez, Mikel Uriarte Itzazelaia, Edgardo Montes de Oca, Asier Valtierra, C. Jimenez","doi":"10.1109/NGMAST.2015.43","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.43","url":null,"abstract":"5G constitutes the next revolution in mobile communications. It is expected to deliver ultra-fast, ultra-reliable network access supporting a massive increase of data traffic and connected nodes. Different technologies are emerging to address the requirements of future mobile networks, such as Software Defined Networking (SDN), Network Function Virtualization (NFV) and cloud computing concepts. In this paper, we introduce the security challenges these new technologies are facing, inherent to the new telecommunication paradigm. We also present a multitier approach to secure Software Defined Mobile Network (SDMN) by tackling security at different levels to protect the network itself and its users. First, we secure the communication channels between network elements by leveraging Host Identity Protocol (HIP) and IPSec tunnelling. Then, we restrict the unwanted access to the mobile backhaul network with policy based communications. It also protects the backhaul devices from source address spoofing and Denial of Service (DoS) attacks. Finally, we leverage Software Defined Monitoring (SDM) and data collection to detect, prevent and react to security threats.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"1826 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127453704","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: 47

Optimising QoE Distribution for Video Applications through LTE-WiFi Interworking 通过LTE-WiFi互联优化视频应用QoE分布

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.70

Mirghiasaldin Seyedebrahimi, Xiaohong Peng

{"title":"Optimising QoE Distribution for Video Applications through LTE-WiFi Interworking","authors":"Mirghiasaldin Seyedebrahimi, Xiaohong Peng","doi":"10.1109/NGMAST.2015.70","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.70","url":null,"abstract":"Mobile WiFi devices are becoming increasingly popular in non-seamless and user-controlled mobile traffic offloading alongside the standard WiFi hotspots. Unlike the operator-controlled hotspots, a mobile WiFi device relies on the capacity of the macro-cell for the data rate allocated to it. This type of devices can help offloading data traffic from the macro-cell base station and serve the end users within a closer range, but will change the pattern of resource distributions operated by the base station. We propose a resource allocation scheme that aims to optimize user quality of experience (QoE) when accessing video services in the environment where traffic offloading is taking place through interworking between a mobile communication system and low range wireless LANs. In this scheme, a rate redistribution algorithm is derived to perform scheduling which is controlled by a no-reference quality assessment metric in order to achieve the desired trade-offs between efficiency and fairness. We show the performance of this algorithm in terms of the distribution of the allocated data rates throughout the macro-cell investigated and the service coverage offered by the WiFi access point.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132600549","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

Simulation-Based Study of Distributed Denial of Service Attacks Prevention in the Cloud 云环境下分布式拒绝服务攻击防范仿真研究

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.50

Wael Alosaimi, M. Alshamrani, K. Al-Begain

{"title":"Simulation-Based Study of Distributed Denial of Service Attacks Prevention in the Cloud","authors":"Wael Alosaimi, M. Alshamrani, K. Al-Begain","doi":"10.1109/NGMAST.2015.50","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.50","url":null,"abstract":"Distributed Denial of Service (DDoS) attacks can affect the availability of the networks. In the age of cloud computing, these attacks are being more harmful in terms of their common influences and their new effects that harm the cloud sustainability by exploiting its scalability and payment model (pay-as-you-use). Therefore, a new form of DDoS attacks is introduced in the cloud context as an economical version of such attack. This new form is known as Economical Denial of Sustainability (EDoS) attack. To counteract such attacks, traditional network security means are used. Specifically, the firewalls that are working as filters for the incoming packets to the targeted network according to designated rules by the administrators can mitigate the impacts of DDoS and EDoS attacks. In this paper, a new solution called Enhanced DDoS-Mitigation System (Enhanced DDoS-MS) is proposed to encounter these attacks by utilizing the firewall capabilities in controlling a verification process to protect the targeted system. These capabilities are evaluated in a simulation environment. The results proved that the firewall mitigates the DDoS impacts successfully by improving the provided services to the users in terms of the response time and server load under attack. The study also suggests following implementation for the proposed framework with an active testbed.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127762056","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: 8

Assessment of Personal Exposure to Wireless Communication Technologies in Different Microenvironments 不同微环境下个人无线通信技术暴露评估

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.56

E. Hamiti, M. Ibrani, Luan Ahma, Rreze Halili, Doruntine Berisha, Vlerar Shala

{"title":"Assessment of Personal Exposure to Wireless Communication Technologies in Different Microenvironments","authors":"E. Hamiti, M. Ibrani, Luan Ahma, Rreze Halili, Doruntine Berisha, Vlerar Shala","doi":"10.1109/NGMAST.2015.56","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.56","url":null,"abstract":"The use of mobile communication applications, services, and technologies has become an indispensable part of everyday life, a fact which has promoted research on the assessment of human exposure to radio-frequency electromagnetic fields and related health issues. To evaluate personal exposure to wireless technologies and broadcast transmitters in this study the personal exposure meters with triaxial E-field probe are used, enabling frequency selective measurements of electric field strength in 14 predefined frequency bands (80 MHz-6 GHz). The measurements were conducted in five microenvironments: home, office, coffee shops, transport vehicles and outdoor, resulting in 122 944 measurement samples. For each microenvironment the mean value of power density from different wireless technologies is presented, including the contribution of specific wireless technology to the total personal exposure. The obtained results are compared with the exposure limits given by the International Commission on Non-Ionizing Radiation Protection.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126812558","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

Denial of Service Attacks Mitigation in the Cloud 云中的拒绝服务攻击缓解

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.48

Wael Alosaimi, M. Zák, K. Al-Begain

引用次数: 6

Privacy-Enhanced Group Communication for Vehicular Delay Tolerant Networks 车载容延迟网络的隐私增强组通信

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.67

C. P. A. Ogah, H. Cruickshank, Zhili Sun, Ganesh Chandrasekaran, Yue Cao, P. Asuquo, Masoud Al Tawqi

{"title":"Privacy-Enhanced Group Communication for Vehicular Delay Tolerant Networks","authors":"C. P. A. Ogah, H. Cruickshank, Zhili Sun, Ganesh Chandrasekaran, Yue Cao, P. Asuquo, Masoud Al Tawqi","doi":"10.1109/NGMAST.2015.67","DOIUrl":"https://doi.org/10.1109/NGMAST.2015.67","url":null,"abstract":"Vehicular Delay Tolerant Networking (VDTN) is a special instance of Vehicular Ad hoc Networking (VANET) and in particular Delay Tolerant Networking (DTN) that utilizes infrastructure to enhance connectivity in challenged environments. While VANETs assume end-to-end connectivity, DTNs and VDTNs do not. Such networks are characterized by dynamic topology, partitioning due to lack of end-to-end connectivity, and opportunistic encounters between nodes. Notably, VDTNs enhances the capabilities DTNs to provide support for delay and intermittent connectivity. Hence, they can easily find applicability in the early stages of the deployment of vehicular networks characterized by low infrastructure deployment as is obtainable in rural areas and in military communications. Privacy implementation and evaluation is a major challenge in VDTNs. Group communication has become one of the well discussed means for achieving effective privacy and packet routing in ad hoc networks including VDTNs. However, most existing privacy schemes lack flexibility in terms of the dynamics of group formation and the level of privacy achievable. Again, it is difficult to evaluate privacy for sparse VDTNs for rural area and early stages of deployment. This paper reports on an improved privacy scheme based on group communication scheme in VDTNs. We analyze the performance of our model in terms of trade-off between privacy and performance based on delivery overhead and message delivery ratio using simulations. While this is a work in progress, we report that our scheme has considerable improvement compared to other similar schemes described in literature.","PeriodicalId":217588,"journal":{"name":"2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116561625","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: 11

Q-learning Based Random Access with Collision free RACH Interactions for Cellular M2M 基于q学习的无碰撞RACH交互随机存取蜂窝M2M

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.22

L. Bello, P. Mitchell, D. Grace, Tautvydas Mickus

引用次数: 9

A Communication Channels Dynamic Switching Model for Always-Connected Availability of Service Oriented Mobile Applications 面向服务的移动应用始终连接可用性的通信通道动态交换模型

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.51

Diogo Azevedo, H. Paredes, Benjamim Fonseca

引用次数: 0

Internet of Things and M2M Communications as Enablers of Smart City Initiatives 物联网和M2M通信是智慧城市计划的推动者

2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies Pub Date : 2015-09-01 DOI: 10.1109/NGMAST.2015.10

S. K. Datta, C. Bonnet

引用次数: 16