2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)最新文献_第4页

Quality codec interface for VoIP on differentiated services networks 差异化业务网络VoIP高质量编解码器接口

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654563

Ahmad Zmily, Dirar Abu-Saymeh

{"title":"Quality codec interface for VoIP on differentiated services networks","authors":"Ahmad Zmily, Dirar Abu-Saymeh","doi":"10.1109/SACONET.2013.6654563","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654563","url":null,"abstract":"As converged services are becoming the standard for corporate networks, concerns have been arising on the best way to ensure efficient use of expensive WAN bandwidth. Achieving excellent quality of multimedia and voice communication requires the allocation of large bandwidth for these services. In most cases, lossy compression codecs are used to reduce bandwidth requirements resulting in lower quality of service. The codec selection is maintained even during low bandwidth utilization. In this paper, we present a codec interface that combines high-fidelity high-bitrate and low-fidelity low-bitrate codecs. Audio packets from the low-bitrate codec are transmitted on the highest priority class of service of differentiated services networks. This ensures that these packets always arrive at destination. Audio packets from the high-bitrate codec are transmitted on the lowest priority class of service. At low bandwidth utilization, the high-fidelity high-bitrate packets will be used and during congestions, these packets would be dropped. This ensures achieving the best possible voice quality during varying network loads. Simulation results measuring the mean opinion score of voice quality show that superior voice quality can be achieved with this method over using standalone codecs while maintaining excellent quality of service for data traffic as well.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115023699","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

Ecosystem for customer experience assurance 确保客户体验的生态系统

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654553

A. Cuadra, M. Cutanda, A. Aurelius, K. Brunnström, J. E. Vergara, M. Varela, J. Laulajainen, A. Morais, A. Cavalli, A. Mellouk, B. Augustin, Ismael Perez-Mateos

{"title":"Ecosystem for customer experience assurance","authors":"A. Cuadra, M. Cutanda, A. Aurelius, K. Brunnström, J. E. Vergara, M. Varela, J. Laulajainen, A. Morais, A. Cavalli, A. Mellouk, B. Augustin, Ismael Perez-Mateos","doi":"10.1109/SACONET.2013.6654553","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654553","url":null,"abstract":"Nowadays service providers focus all their effort on customers' satisfaction although determining the Quality of Experience (QoE) is not a trivial task. In addition, the evolution from traditional networks towards Next Generation Networks (NGN) is enabling service providers to deploy a wide range of multimedia services such as Internet Television (IPTV), Video on Demand (VoD), and multiplayer games services, all on the same underlying IP network. However, managing the satisfaction level of customers to provide a good user experience is not being an easy task due to the complexity of orchestrating network and customer data sources. This document proposes an ecosystem that allows managing customer experience in order to guarantee the quality levels delivered to end users, which is being implemented into the Celtic IPNQSIS project. The QoE ecosystem lies on a customer experience architecture formed by Data acquisition level, Monitoring level and Control Level. The work proposed in this paper will settle the basis of next generation Customer Experience Management systems.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115284781","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

Performance evaluation of Dynamic-Power AODV, AOMDV, AODV and DSR protocols in MANETs 动态功率AODV、AOMDV、AODV和DSR协议在manet中的性能评估

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654577

A. Bamhdi, P. King

{"title":"Performance evaluation of Dynamic-Power AODV, AOMDV, AODV and DSR protocols in MANETs","authors":"A. Bamhdi, P. King","doi":"10.1109/SACONET.2013.6654577","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654577","url":null,"abstract":"Mobile Ad Hoc Networks (MANET) are networks formed by mobile radio nodes without supporting infrastructure. The mobility of the radios means that the topology of the network is constantly changing. If there is a high density of radios, then the throughput of the network will be reduced because of mutual interference. In order to solve this problem, the Dynamic Power Ad-hoc On-Demand Distance Vector (DP-AODV) was developed. It attempts to adjust transmission power, based on the node density, to keep a constant number of radios within range of each other. Our protocol determines the power required to preserve connectivity through the nodes, in order to decrease interference and power consumption, as well as to improve the network throughput. In this paper, we present some results on the performance of DP-AODV, on the basis of comparisons with the standard protocols Ad-Hoc On-Demand Multipath Distance Vector (AOMDV), Ad-Hoc On-Demand Distance Vector (AODV) and Dynamic Source Routing (DSR). Simulation results show that DP-AODV gives better performance than AODV and DSR in all situations, but AOMDV gives better in delay than the others.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116989947","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: 12

End-to-end service provisioning across MPLS and IP/WDM domains 跨MPLS和IP/WDM域提供端到端业务

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654561

F. Muñoz, R. Muñoz, Juan Rodríguez, V. López, Ó. D. Dios, J. Fernández-Palacios

引用次数: 3

Evaluating quality of experience in IPTV services using MPEG frame loss rate 用MPEG丢帧率评价IPTV服务的体验质量

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654554

D. Hernando, J. L. D. de Vergara, D. Madrigal, F. Mata

{"title":"Evaluating quality of experience in IPTV services using MPEG frame loss rate","authors":"D. Hernando, J. L. D. de Vergara, D. Madrigal, F. Mata","doi":"10.1109/SACONET.2013.6654554","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654554","url":null,"abstract":"Current network services such as Voice over IP or IP Television pose new challenges to network providers. Network operators need to know if their services are being properly provided. However, current quality of service parameters commonly used in data networks (e.g. throughput, packet delays, packet losses, etc.) do not show a clear view of what the users are experiencing. Thus, it is necessary to translate such measured quality parameters into a quality of experience value. Several models are being developed to cope with this problem. For instance, some approaches have used the packet loss rate to evaluate the experienced quality of an IP television channel. Unfortunately, packet loss just explains a fraction of the quality behavior. Then, we go one step further, taking into account the different MPEG frame types that are transmitted. In this paper, we have defined a model to predict the experienced quality that is a function of the loss of the different types of MPEG frames, providing a mean opinion score of the delivered service. The final results show that our model is able to better predict the quality of experience of such video services than just using the packet loss rate.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133771170","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

A distributed, bandwidth-efficient accident prevention system for interurban VANETs 用于城际vanet的分布式、带宽高效的事故预防系统

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654564

Estrella M. Garcia-Lozano, Carolina Tripp Barba, M. Aguilar Igartua, Celeste Campo

引用次数: 11

Concurrency and locality of content demand 内容需求的并发性和局部性

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654552

V. Nordell, A. Aurelius, A. Gavler, Å. Arvidsson, M. Kihl

{"title":"Concurrency and locality of content demand","authors":"V. Nordell, A. Aurelius, A. Gavler, Å. Arvidsson, M. Kihl","doi":"10.1109/SACONET.2013.6654552","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654552","url":null,"abstract":"Distribution of media data over the Internet is increasing in popularity and volume. This poses challenges not only for network operators but also for service providers when it comes to serving the demand in a cost-efficient way. In this paper, we approach this problem by investigating the potential of co-operative approaches where locality in space (users in the same network) and locality in time (concurrent downloads) are exploited such that as many requests as possible may be handled inside the access and metro networks. This approach may contribute not only to reducing transport costs (less traffic in core networks and at peering points) by but also improve the end user experience (by reduced round trip times and exclusion of some possible bottlenecks). To this end we develop a method to measure the possible gains from, firstly, optimal handling of concurrent downloads and, secondly, optimal utilization local availability. We apply the method to BitTorrent data from two metropolitan access networks and find that the bandwidth savings amount to between 10% and 20% when optimizing concurrent downloads and between 56% and 66% when exploiting local availability with a simulated network cache.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122355283","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

EV-planning: Electric vehicle itinerary planning 电动车行程规划:电动车行程规划

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654583

S. Mehar, S. Senouci, Guillaume F. Remy

{"title":"EV-planning: Electric vehicle itinerary planning","authors":"S. Mehar, S. Senouci, Guillaume F. Remy","doi":"10.1109/SACONET.2013.6654583","DOIUrl":"https://doi.org/10.1109/SACONET.2013.6654583","url":null,"abstract":"In the latest few years, lot of efforts have been done to pave the way to sustainable mobility, in order to solve pollution problems and fuel shortage. The use of electric vehicles (EV) is considered as one of the best ecologic and economic solution. However, autonomy barriers and limitations slow the progress and the deployment of this technology. In this paper, we propose an advanced electric vehicles' fleet management architecture. This architecture considers the most important factors that can affect the traveling mode of electric vehicles, in order to offer different services to fleet management companies for an efficient monitoring and management of their fleets. One of the most important service, considered in this paper, consists on providing economic itineraries planning for electric vehicles. Best routes, in term of electric power consumption, are computed based on the collected information about road topology (elevation variations, source, destination, etc.), weather conditions, vehicle characteristics, driver profile, traffic conditions and electric charging stations positions. In case of battery drop, new routes passing through the nearest available charging stations are recalculated and provided to the driver. To prove the concept, we implemented a lightweight traffic management server that provides this itinerary planning service to an EV fleet company. The server provides a web application to book an EV and plan the trip. All possible itineraries are displayed on a map with electric power consumption, traveled distance and duration details. Then, the server uploads the chosen itinerary into the vehicle's GPS or into the driver's smartphone.","PeriodicalId":187635,"journal":{"name":"2013 International Conference on Smart Communications in Network Technologies (SaCoNeT)","volume":"328 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116347836","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: 34

A cross layer solution to improve TCP performances in Ad Hoc wireless networks 一种在自组织无线网络中提高TCP性能的跨层解决方案

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-06-17 DOI: 10.1109/SACONET.2013.6654575

Yassine Douga, Malika Bourenane

引用次数: 9

On modeling geometric joint sink mobility with delay-tolerant cluster-less Wireless Sensor Networks 基于容延迟无簇无线传感器网络的几何联合sink迁移建模

2013 International Conference on Smart Communications in Network Technologies (SaCoNeT) Pub Date : 2013-04-19 DOI: 10.1109/SaCoNeT.2013.6654586

M. Akbar, N. Javaid, A. Khan, Z. Khan, U. Qasim

引用次数: 18