2007 International Conference on IP Multimedia Subsystem Architecture and Applications最新文献

Towards recommending the right service in the right context 在正确的上下文中推荐正确的服务

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559092

R. Ramakrishnan, A. Seetharam, A. Sinha

引用次数: 1

A case study of large scale P2P video multicast 以大规模P2P视频组播为例

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559096

S. Agarwal, Deutsche Telekom

引用次数: 18

Blending of external applications with advanced telephony services in the IP Multimedia Subsystem (IMS) IP多媒体子系统(IMS)中外部应用程序与高级电话服务的混合

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559086

R. Shacham, R. Jana, C. W. Rice, J. Murray

引用次数: 0

Analysis of system performance for differentiated handling of SIP requests 分析系统性能对SIP请求的不同处理

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559098

G. Vineel

{"title":"Analysis of system performance for differentiated handling of SIP requests","authors":"G. Vineel","doi":"10.1109/IMSAA.2007.4559098","DOIUrl":"https://doi.org/10.1109/IMSAA.2007.4559098","url":null,"abstract":"The IP multimedia subsystem (IMS) relies on the session initiation protocol (SIP) protocol for call management and signaling. The SIP protocol defines several types of request messages for its operation. A call setup, for instance, involves SIP INVITE request, which often generates message exchanges across multiple SIP proxies before the call is established. While requests such as INVITE are initiated by end users (referred herein as user-triggered requests), other SIP requests are system-triggered, wherein the user equipment (UE) automatically generates certain SIP requests for addressing and other housekeeping purposes. In particular, the SIP REGISTER requests are required to allow the UEs to register themselves with designated SIP registrar servers. Also, UEs are required to refresh their registrations by means of fresh REGISTER requests, at regular intervals. Consequently, a SIP server can experience a significant amount of load, even if the user call rates are low. In this paper, we suggest that the performance of SIP based systems can be improved by differentiated handling of the user-triggered and system-triggered requests. For instance, since the user-triggered requests have more direct impact on response time experienced by end users, these type of requests can scheduled with a higher priorities on the server. Moreover, the system-triggered requests can be delayed or even curtailed, in order to ldquosmoothenrdquo the request arrival rates at the server. We also attempt to quantify the impact of user-triggered and system-triggered requests, on the performance of an IMS system. In particular, we compute the performance of IMS by means of simulations, driven by real-world traffic statistics. We further propose and analyze a simple heuristic algorithm for controlling the rate of generation of REGISTER requests. In our simulation experiments, we find that the average server load, as measured by its job queue size, decreased by 50% when the algorithm was applied.","PeriodicalId":301770,"journal":{"name":"2007 International Conference on IP Multimedia Subsystem Architecture and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125901345","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

Policy control for IPTV domain IPTV域策略控制

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559091

D. Sreenivas

{"title":"Policy control for IPTV domain","authors":"D. Sreenivas","doi":"10.1109/IMSAA.2007.4559091","DOIUrl":"https://doi.org/10.1109/IMSAA.2007.4559091","url":null,"abstract":"This paper intends to showcase the various areas in IPTV domain where policies can be applied. Polices are set of rules which regulate the usage of critical resources thereby enforcing QOS and security. The overall architecture of IPTV involves multiple transport capabilities and network aspects at the lower layers and infinite possibilities of primary and supplementary services at the application layer. The very thought of monitoring, controlling and billing the usage of resources throws open a Pandora box of problems of coordination and control. Added to this are facts of maintaining QOS and network performance aspects as defined in the SLA of the providers. QOS is Ubiquitous in IMS. Charging domains are created keeping in mind the content provider, portal operator, service provider, network operator & infrastructure provider. A central resource monitor, operating accordingly to the applied polices, facilitates the charging domain to get a common bill for all the services used in various IMS entities. This keeps both the customer and operators at multilevel, informed and content. Enabling end to end QOS and providing usage based charging are the 2 primary topics addressed in this paper. Some of the areas addressed by this paper are broadly summarized as following. ldr Integration and Percolation of operators SLA into policies and distributing them into concerned network entities in the IPTV domain. ldr Monitoring and controlling the network entities which have been provisioned with policies. ldr Centralized Billing and correlation of the network entities involved. ldr Enabling security at both application and network levels in IPTV domain.","PeriodicalId":301770,"journal":{"name":"2007 International Conference on IP Multimedia Subsystem Architecture and Applications","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124067928","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

Performance study of IMS signaling plane IMS信令平面性能研究

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559097

S. Pandey, V. Jain, D. Das, V. Planat, R. Periannan

引用次数: 13

Enabling network based presence aggregation using IMS 使用IMS启用基于网络的状态聚合

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559075

K. Valsala

{"title":"Enabling network based presence aggregation using IMS","authors":"K. Valsala","doi":"10.1109/IMSAA.2007.4559075","DOIUrl":"https://doi.org/10.1109/IMSAA.2007.4559075","url":null,"abstract":"IP multimedia subsystems (IMS) and presence are the biggest buzzwords in the telecom industry today. Almost all major service providers are strategizing and planning roll out of IMS compliant network and value added services, to provide rich user experience. Moving to the hyper connected world, users have to manage multiple identities, corresponding to each connection, spread across multiple networks. Multimedia services are envisioned to be delivered seamlessly across the multiple devices of the same user. Current implementations around Presence agent aggregating presence information have limitations due to user identities spreading across multiple access devices. This limited the power of rich presence and mostly application tends to use presence aggregation around enterprise applications like email, calendars and Instant Messengers. With the advent of IMS technology, we can foresee a world exploring the benefits of presence from different networks, with presence being aggregated at the network rather than presence agents. IMS architecture eases the aggregation of presence from multiple sources and technologies. The access agnostic IMS architecture also promises one unified identity for a user spread across multiple devices and media types and thus making communication user centric. This paper details how IMS architecture can be envisioned to provide network based presence aggregation and demonstrates how the presence aggregation can be used to implement complex new services. It reports how a personpsilas availability across multiple devices and networks can be traced out with a single identity in IMS world and how the IMS network nodes interwork for this scenario.","PeriodicalId":301770,"journal":{"name":"2007 International Conference on IP Multimedia Subsystem Architecture and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128802223","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

Handling feature interactions for multi-party services in 3GPP IP multimedia subsystem 处理3GPP IP多媒体子系统中多方业务的功能交互

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559088

Wei-Kuo Chiang, Cheng-Yang Tseng

{"title":"Handling feature interactions for multi-party services in 3GPP IP multimedia subsystem","authors":"Wei-Kuo Chiang, Cheng-Yang Tseng","doi":"10.1109/IMSAA.2007.4559088","DOIUrl":"https://doi.org/10.1109/IMSAA.2007.4559088","url":null,"abstract":"In this paper, an approach with extended cocoons to detect and resolve the feature interaction induced by the centralized multi-party service is proposed, hereinafter referred to as the ECOMPS. The ECOMPS is built based on the approach presented in (Kolberg and Magill, 2007) which manages the feature interaction between call control services within a single session; therefore, the good characters are inherited. The ECOMPS introduces a cocoon surrounding the centralized multi-party service, called COMPS, to modify the original SIP request message to include the information about participants in the multi-party service; in addition, the cocoon for call control services in (Kolberg and Magill) is extended, called COCCS, to describe the servicepsilas execution on the modified request message. Moreover, the ECOMPS can be applied to the service capability interaction manager (SCIM) in 3GPP IP multimedia subsystem (IMS) to detect the feature interaction between SIP application servers where call control services are deployed on, even with the centralized multi-party service involved in the communication. The ECOMPS is also illustrated by taking the multi-party conferencing service as an example. The feature interaction caused by the centralized multi-party service can be detected and resolved with the ECOMPS.","PeriodicalId":301770,"journal":{"name":"2007 International Conference on IP Multimedia Subsystem Architecture and Applications","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126688458","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 study case on user experience with IMS using instant communication services 使用即时通信服务的IMS用户体验研究案例

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559090

D. Mansutti, Marie-Noelle Mathieu, B. Menez

{"title":"A study case on user experience with IMS using instant communication services","authors":"D. Mansutti, Marie-Noelle Mathieu, B. Menez","doi":"10.1109/IMSAA.2007.4559090","DOIUrl":"https://doi.org/10.1109/IMSAA.2007.4559090","url":null,"abstract":"The evolution to IP-based next-generation networks, the widely adoption of IMS by both fixed and mobile service providers and the need to better integrate enterprise solutions with telecom services are expected to drive a new wave of enhanced services that will seamlessly combine IT and telecom technologies. Telecom service providers have great expectations from these new networks, helping them to reduce their costs, to extend their reach (with the ability to offer services across multiple access networks to a wide range of personal devices) and to respond more quickly to ever-changing requirements from consumers and enterprise customers. Indeed, these customers are expecting more and more blended lifestyle services including multimedia and interactive services. But, even if network technologies are evolving, the biggest barrier to increased service adoption is still that the user experience does not meet consumer expectations. Then, this paper describes work being undertaken within HP OpenCall Software group and explores strong new user experiences and business models and their associated benefits, technical challenges and implementation choices. This work is based on our experience from using standard IT services in collaboration with the IMS technology in different areas to implement the instant group communication class of applications. As part of this work, three different areas have been analyzed and compared.","PeriodicalId":301770,"journal":{"name":"2007 International Conference on IP Multimedia Subsystem Architecture and Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126019428","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

IPTV and VoD services in the context of IMS IMS环境下的IPTV和VoD业务

2007 International Conference on IP Multimedia Subsystem Architecture and Applications Pub Date : 2007-12-01 DOI: 10.1109/IMSAA.2007.4559093

R. Shiroor

引用次数: 11