A Framework of Federated 3 rd Party and Personalized IPTV Services Using Network Virtualization

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1 SpringerLink - Abstract springer.com springerprotocols.com English SEARCH FOR AUTHOR OR EDITOR PUBLICATION VOLUME ISSUE PAGE 3808 SpringerLink South Korea HOME MY SPRINGERLINK BROWSE TOOLS HELP SHOPPING CART LOG IN Related Book Series View Related Documents Book Chapter A Framework to Describe and Search for Virtual Resource Objects Éric Renault Book Chapter Dynamic Bandwidth Allocation for Preventing Congestion in Data Center Networks Cong Wang Book Chapter The Internet Architecture - Is a Redesign Needed? Anja Feldmann Book Chapter An Identity Management Infrastructure for Secure Personalized IPTV Services Daniel Díaz Sánchez Book Chapter COMPUTER SCIENCE UBIQUITOUS COMPUTING AND MULTIMEDIA APPLICATIONS Communications in Computer and Information Science, 2011, Volume 150, , DOI: / _16 A Framework of Federated 3 rd Party and Personalized IPTV Services Using Network Virtualization Md. Motaharul Islam, Mohammad Mehedi Hassan and Eui-Nam Huh Link Out to this Chapter at Kyunghee University Global Campus: Abstract Get KHU Download PDF (368.3 KB) Look Inside Permissions & Reprints REFERENCES (11) EXPORT CITATION ABOUT Increasing demand of 3 rd party and personalized Internet Protocol Television (IPTV) services require cost effective strategies for content distribution network and quality of service provisioning. However, current IPTV architecture does not explicitly define any standard components, interfaces and cost effective policies for emerging 3 rd party and personalized IPTV services. So in this paper we introduce a framework of federated 3 rd party and personalized IPTV services using virtual network (VN). The federated 3 rd party services can provide competitive IPTV services which will be cost effective and ensured QoS service provision. Also VN can provide flexible IPTV services with lower cost as compared to existing IP overlay network by sharing same physical network among multiple service providers. Through this framework, present IPTV services can be enhanced in terms of quality of service provisioning of the content delivery and resource utilization. Keywords 3 rd party IPTV service Network Virtualization Hosting service Personalized IPTV content Fulltext Preview 9:05:17]

2 A Framework of Federated 3 rd Party and Personalized IPTV Services Using Network Virtualization Md. Motaharul Islam, Mohammad Mehedi Hassan, and Eui-Nam Huh Department of Computer Engineering, College of Electronics and Information Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, , Republic of Korea {motahar,hassan,johnhuh}@khu.ac.kr Abstract. Increasing demand of 3 rd party and personalized Internet Protocol Television (IPTV) services require cost effective strategies for content distribution network and quality of service provisioning. However, current IPTV architecture does not explicitly define any standard components, interfaces and cost effective policies for emerging 3 rd party and personalized IPTV services. So in this paper we introduce a framework of federated 3 rd party and personalized IPTV services using virtual network (VN). The federated 3 rd party services can provide competitive IPTV services which will be cost effective and ensured QoS service provision. Also VN can provide flexible IPTV services with lower cost as compared to existing IP overlay network by sharing same physical network among multiple service providers. Through this framework, present IPTV services can be enhanced in terms of quality of service provisioning of the content delivery and resource utilization. Keywords: 3 rd party IPTV service, Network Virtualization, Hosting service, Personalized IPTV content. 1 Introduction Internet Protocol Television (IPTV) has become a killer application for the next generation Internet and has rendered the opportunity to earn revenue for the different service providers. IPTV provides the digital television services over Internet Protocol (IP) from the content providers to the end users at a reasonable cost [1]. Currently, IPTV services are growing in number of service providers, customers, and contents enlarging its area of services at the same time. The worldwide IPTV subscribers are forecasted to reach to 103 Millions in 2011[7]. So to realize good revenue opportunities, new and innovative 3rd party and personalized IPTV services need to be created. The 3rd party and personalized content service is a consumer based wide selection service of contents. Under that situation, highlighting on what the customer may like or want to enjoy becomes a key factor for victorious IPTV service. Moreover, the personalization trends allow providing more new value added services which will make the IPTV service worthwhile. To satisfy the quality of service (QoS) requirements of emerging 3rd party and personalized IPTV services, a typical IPTV network T.-h. Kim et al. (Eds.): UCMA 2011, Part I, CCIS 150, pp , Springer-Verlag Berlin Heidelberg 2011

3 148 M.M. Islam, M.M. Hassan, and E.-N. Huh infrastructure requires significant investments for the distribution network, in terms of guaranteed bandwidth as well as available storage capacity for hosting service. However, the present internet architecture cannot provide desired services to the end user for its inherent limitations. So current IPTV service providers are forced to use IP overlay network but it also adds complexity and increased cost to service providers [3][11]. Recent works in the field of virtual networks offer a viable alternative that promises to cut costs by sharing the infrastructure among different service providers [4]. The key on network virtualization is of dividing the physical network infrastructure into several slices and associating them to different virtual providers. However, there are no explicit components and interfaces for new 3rd party and personalized IPTV services with network virtualization in the current IPTV Architecture [5][6][10]. So in this paper we propose a framework of federated 3rd party and personalized IPTV services through VN. A number of 3rd parties can join together and may form a consortium (federation) to provide quality oriented cost effective services. VN can offer the possibility to test, debug, and roll out new network architectures for 3rd party and personalized IPTV services. The paper is organized as follows: in section 2, we present the related works. In section 3 we give the details of the proposed framework with service delivery architecture and federated 3rd party and personalized IPTV services architecture and hosting services using NV. Section 4 describes the future research issues. Section 5 finally concludes the paper. 2 Related Works In comparison to traditional analog TV, IPTV provides the digital television services over Internet Protocol (IP) from the content providers to the end users at a cost effective approach. To enrich quality oriented service delivery, the 3 rd party and personalized IPTV content providers can contribute a lot. Addition of VN with current IPTV distribution network can greatly enhance the network architecture and service quality. However, no work has been found in the literature regarding the delivery of content from federated 3 rd party using VN architecture. There are few approaches proposed in the literature regarding virtualization in IPTV distribution network. In [2], the authors discuss some runtime aspects by examining control interfaces and signaling protocols necessary for the management of VN architecture. They also discuss how an IPTV application service provider may benefit from a network virtualization concept and describe the different roles of player and stakeholders in the VN architecture. However, they do not consider the 3 rd party content provider issues in the architecture. In [1] authors discuss about P2P IPTV, in which user serve as peers and participate in video data sharing. This concept can be enriched and be fruitful if the peers form a group and provide the content as a 3 rd party. Although IPTV is considered as a killer application of the next generation Internet, its success depends on quality oriented and cost effective contents development. So we propose a framework of federated 3 rd party and personalized IPTV services. In this framework we also focus the problem of overlay based IPTV distribution network and give the solution of existing problem by using virtual network approach.

4 A Framework of Federated 3 rd Party and Personalized IPTV Services Proposed Framework 3.1 IPTV and Network Virtualization Here we briefly describe the proposed architecture of the federated 3 rd party and personalized IPTV services through network virtualization. In our scheme we proposed that 3 rd party and personalized content provider will be connected to the virtual network. VN can provide services through its virtual nodes and virtual links. In this framework IPTV content will be provided by the 3 rd party. We consider two types scenario. Either the 3 rd party and personalized content provider may contribute individually or can have a consortium to provide quality oriented and cost effective services. IPTV service provider can use these content provided by the 3 rd party and personalized content provider thorough virtual network. It helps to dynamically share and host the content as required by the service provider and the end user. Now a day in most of the cases, IPTV access network can be of two types: i. IMS (IP Multimedia Subsystem) ii. Non-IMS. In our proposed scheme we considered both IMS and Non-IMS which is included in the virtual network attachment protocol module. Through the proposed scheme it is possible to render the IPTV services to the end user in cost effective approach. In figure 1 federated 3 rd party and personalized IPTV scenario has been depicted. Fig. 1. Network Virtualization for IPTV

5 150 M.M. Islam, M.M. Hassan, and E.-N. Huh 3.2 Service Delivery Architecture Figure 2 presents the service delivery architecture of 3 rd party and personalized IPTV services based on VN. The major components of this service delivery architecture are described as follows: Network virtualization: It is an effective technique for service providers to use substrate network. To provide compelling value-added services, a connection must be made between ASs and two networks: the call control network that provides presence, instance messaging, and other services and a non-(ip Multimedia Subsystem) IMS network such as the Internet that provides web services using hypertext transfer protocol (HTTP). The network virtualization layer provides functions for making seamless connections between ASs and these two networks. AS virtualization: It is effective for achieving provision of value added services. The AS virtualization layer provides intelligence log-in, routing, and access control functions and provides a function for adding ASs independently of the network. Intelligence function lies at the point where information is received from the network [9]. It consists of flow identification and real-time data storage. Access control function performs various control functions such as regulating the number of simultaneous connections based on service level agreement with the subscriber, regulating access when the usage limit has been exceeded in case of prepaid charging, and controlling competition between services. The routing function receives requests from the network and decides which AS to send each request. Fig. 2. Service delivery architecture of IPTV base on VN

6 A Framework of Federated 3 rd Party and Personalized IPTV Services 151 Service orchestration: This function is needed to provide new value added services quickly and economically. The service orchestration layer consists of service components that can be used in common by multiple applications, basic scenarios that define combinations of components, and execution environments for executing those scenarios. Policy management: Policy management is divided into four parts: system policies, AS policies, hosting policies and subscriber policies. System policy management provides a function for managing policies defined for the system in terms of a service delivery platform. AS policy management provides a function for managing policies defined for each AS. Hosting policy provides a function to host 3 rd party content in a virtualized storage environment for the easy access by the end users and prosumers. Subscriber policy management provides a function for managing policies defined for each subscriber. Access Network: There are two types of access networks. i. IMS network. It may consist of home subscriber server (HSS) which is an open source and standard for use in IMS context and serving call session control (S-CSC). ii. Non-IMS Network. It provides basic messaging framework upon which web services can be built up [8]. Hosting Service: It facilitates the federated 3 rd party and personalized IPTV content provider to host the services in the particular AS in the VN environment. The AS represents individual substrate physical node that may host multiple virtual node of the different content provider. The detail descriptions of hosting services are explained in article 3.3 and in the figure Federated 3 rd Party IPTV Using VN We assume that there will be multiple infrastructure providers required to enable communication between different locations and which provide end users with access to their networks. In this case IPTV service provider uses VN to provide application specific services hosted by 3 rd party. Usually, the IPTV service provider would specify the desired network topology for the VN operator. The 3 rd party IPTV content provider interacts within the VN. Individual or federated 3 rd party content providers may access the VN in order to provide the necessary content, e.g., by hosting TV program and video onto streaming servers. If end-users (IPTV customer, prosumers) want to get access to the IPTV VN to which it is subscribed, connectivity should be established by the VN attachment protocol interfaces. It means the end-users node will automatically discover virtual access points of the VN it needs to connect. Figure 3 demonstrates a few 3 rd party content providers forming a federation and belongs to a virtual network. In the same way many consortium may co-exist in terms of the member of different virtual networks. Dynamic collaboration can be done among the content providers of the same virtual network.

7 152 M.M. Islam, M.M. Hassan, and E.-N. Huh Fig rd party IPTV services using VN 3.4 Federated 3 rd Party IPTV Hosting Services Using VN Figure 4 describes basic substrate node architecture to implement federated 3 rd party and personalized IPTV hosting services using network virtualization. It shows a substrate physical node with two real network interfaces. The physical substrate node hosts virtual nodes of two different virtual networks: i. Virtual Network No-1(VN #1) and ii. Virtual Network No-2 (VN #2). For addressing and identification purposes from control planes and data planes we need a unique VN-Identifier (VN-ID). It is required for the following purposes: 1. 3 rd party and personalized IPTV content provider & End User Attachment: In order to attach to the desired virtual networks from any place, a global unique identifier for virtual networks is most important. It facilitates virtual access of 3 rd party content hosting nodes of the corresponding VN by the 3 rd party and personalized IPTV content providers & end users. 2. Accounting, Authorization and Authentication: A globally unique identifier eases assignment of resource usage if multiple infrastructure providers are providing resources to a virtual network. 3. Uniqueness across multiple infrastructure providers: Since VN may span different infrastructure providers; the VN-ID also should be globally unique for accounting purposes. One option may be considered here is that a VN Provider generates the VN-ID as a cryptographic ID, e.g., as hash value of a generated public key. This could be used for improving the security: in case a VN Provider wants to modify a VN configuration, infrastructure providers can verify that the VN Provider possesses the corresponding private key that belongs to the aforementioned public key. Furthermore, the VN Provider can supply credentials to the VN Operator and the involved infrastructure providers, so that only authorized access to control functions is possible.

8 A Framework of Federated 3 rd Party and Personalized IPTV Services 153 Fig. 4. Node hosting federated 3rd party IPTV services using VN There are different important components in the figure 4. These components are discussed below: i. The physical substrate node control consisting of VNode Control and VLink Control allows for setup and modification of virtual node slices and virtual links and must therefore only be accessible by the infrastructure provider. ii. The (De-) Multiplexing and QoS Mechanisms component is responsible for de-multiplexing of multiple incoming / outgoing virtual links via one substrate link. iii. The Hypervisor / Resource Control are responsible for actual creation of virtual nodes and manage the resources assigned to them. iv. VN Management Access allows VN Operators to access each of their virtual nodes in case of initial setup, misconfigurations, or failures inside the virtual network and permits reboot, serial console access, and further management functionalities. VN Operators are allowed to access their virtual nodes after they have been properly authenticated and authorized. The access to this interface may be proxied by a management node of the infrastructure provider. From a security perspective, this interface is highly critical and requires extremely careful engineering. 4 Future Research Issues Success of IPTV depends on quality oriented content delivery. For this reason researches for 3rd party and personalized content delivery are going on. In this regards important research issues may be dynamic bandwidth allocation to the 3rd party content provider, dynamic collaboration among the 3rd party content provider,

9 154 M.M. Islam, M.M. Hassan, and E.-N. Huh security in 3rd parties and virtualization of 3rd party content itself. The other issues mentioned as follows: i. Internetworking interface of 3rd party and personalized IPTV contents with IPTV service provider ii. Interoperable middleware to support innovative content classification and hosting of different 3rd party or personalized IPTV contents source. iii. Contents protection scheme such as digital right management (DRM) including conditional access system (CAS) and downloadable conditional access system (DCAS) to provide appropriate adaptation of 3rd party and personalized IPTV content service. iv. Appropriate policy management for application server flow control and intelligent logging with proper authorization and authentication. 5 Conclusion In this paper we present a framework of integrating federated 3 rd party and personalized IPTV services with network virtualization architecture. As the IPTV subscribers are increasing rapidly, the quality oriented contents must be delivered. In this regard, federated 3 rd party and personalized IPTV content providers can meet up this future demands. VN can ensure the content hosting services in a cost effective approach that can be easily reachable to the worldwide IPTV subscribers. Here we only provide the NV architecture and hosting service. As the next step to our research in this field, we are planning to design a control interface, hosting policy, feasible middleware prototype over virtual networking platform and schedulability of the resources to the 3rd party and personalized IPTV content providers. Acknowledgement This research was supported by the MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the NIPA (National IT Industry Promotion Agency)" (C )). The corresponding author is Eui-Nam Huh. References 1. Xiao, Y., Du, X., et al.: Internet Protocol Television (IPTV): The killer Application for the Next-Generation Internet. IEEE Commutations Magazine, (2007) 2. Bless, R., Werle, C.: Control Plane Issues in the 4WARD Network Virtualization Architecture. Electronic Communications of the EASST 17 (2009) 3. Yu, M., Yi, Y., et al.: Rethinking virtual network embedding: substrate support for path splitting and migration. SIGCOMM Comput. Communication Rev. 38(2), (2008) 4. Jain, R.: I Want My IPTV. IEEE Multimedia 12(3), (2005) 5. Taplin, J.: The IPTV revolution, 6. Park, S.: Integrated Session Control for Peer-to-Peer IPTV Services. In: International Conference on Convergence and Hybrid Information Technology (2008) 7. Global IPTV: Market Analysis and Forecast to 2011,

10 A Framework of Federated 3 rd Party and Personalized IPTV Services Mikocyz, E. et al.: IMS based IPTV services-architecture and Implementation. In: Proceedings of the 3rd International Conference on Mobile Multimedia Communications, Greece, August (2007) 9. Froloshki, H., Pencheva, E.: Enabling Architecture for Third Party Applications in Intelligent Network. Cybernetics and Information Technologies 7(1) ( 2007) 10. The Evolving IPTV Service Architecture, White paper, Cisco Systems Inc. 11. Virtualization in the Core of the Network, White Paper, en.pdf