Proposal on Wide Area DLNA Communication System

User-provided multimedia content distribution architecture in mobile and ubiquitous communication networks

“…This communication paradigm is not cost-effective due to its significant expense in processing and communication resources, and slow response time. Even though existing methods extend home services outside the home by relaying or tunneling in-home UPnP/DLNA messages to remote devices (Kawamoto et al, 2009;Kim et al, 2007;Motegi et al, 2008;Song et al, 2009), these problems remain and become worse in wide area networks. As Section 5 mentions, experimental results show that the UPnP/ DLNA-specific SOAP control scheme creates a severe performance reduction in a wide-area network compared with that in a local network.…”

“…Third, inside connected VPNs have the problem of no privacy and access control (Song et al, 2009). Therefore, Motegi et al (2008) and Song et al (2009) proposed different UPnP/DLNA proxies without regard to SIP and VPN concerns. Furthermore, Kawamoto et al (2009) and Venkitaraman (2008) employed special peer-to-peer (P2P) overlay architectures on home gateways, among which the content search and retrieval operations comply with the P2P's conventions without loss of generality.…”

“…First, IPSec may induce high computation overhead and slow down multimedia traffic, so Kim et al (2007) adopted a hardware crypto-accelerator to decrease processing time. Second, a VPN limits user population to a special crowd (Motegi et al, 2008). Third, inside connected VPNs have the problem of no privacy and access control (Song et al, 2009).…”

The Home as a Content Provider for Mash-Ups with External Services

“…However, research work has been focusing, for quite some time, on how to extend this functionality to devices outside the core home network. For example, in [9] the authors propose a system that expands the interconnection area from a home network to a mobile phone, and a similar solution is presented in [14]. In [13] a solution that utilizes the Session Initiation Protocol (SIP) is suggested for linking individual remote devices to a DLNA-AV based home network, while the solution presented in [1] targets the same with the usage of the Atom publishing protocol.…”

Adopting IPsec to SIP Network for On-Demand VPN Establishment between Home Networks

“…In correspondence to these situations, more consumer electronics such as Digital Living Network Alliance (DLNA) [1] capable televisions or digital video recorders are being introduced into the market. In the next stage of home network services, connecting two home networks with VPN to enjoy digital contents is no longer a future usage scenario but a realistic situation even for ordinary users [2] [3]. VPN services for home networks require a stable broadband connection, as in enterprise services, since many audio/visual appliances transfer high-quality digital content.…”