Martin Körling

Evolution of open IPTV standards and services

IP-based TV services bring opportunities for interactivity and personalization. They also bring challenges in delivery quality and interoperability. Open standards are essential to ensure market success but also to enable innovation of future services and applications. We give an overview of the current status of IPTV standardization, especially how specifications complement each other to achieve a complete system. Some key challenges and opportunities are described, including how to enable 3rd party innovation on top of IPTV platforms.

Fostering rapid, cross-domain service innovation in operator networks through Service Provider SDN

Software defined networking (SDN) and Network Function Virtualization (NFV) are new approaches to next generation network architecture for operator networks that have received much discussion in the research literature and in new forums organized to standardize their interfaces. While these approaches to network architecture are important, they only cover part of the problem. A fundamental property required from any next generation architecture is support for rapid, cross-domain service innovation. In this paper, we discuss Service Provider SDN (SP-SDN), an architectural approach to rapid service innovation based on exposure of functionality for cross-domain control at the service layer. The functionality is exposed through Web-style interfaces that feature abstractions crafted by suppressing detail irrelevant for the majority of the created services. The control spans mobile, fixed and cloud operator networks, allowing the rapid and flexible provisioning of services across all three domains. We compare this approach to SDN and NFV, and find that SP-SDN complements rather than competes with the two. We present two examples of prototype systems built with SP-SDN.

The developer experience

Over the last few years, there has been a tremendous evolution of hardware and software capabilities of mobile devices and networks. This has opened up for rich user experiences and development of applications and services. Still, there is a big potential for improvement in how application developers can reach mobile users in a simple, rich and controlled way; a potential for improvement of the developer experience. Recent industry initiatives, such as Symbian Foundation, Android, and Apple iPhone, show varying degrees of openness and reach. What makes up a good developer experience? We take a look at technology trends, their impact and challenges.Over the last few years, there has been a tremendous evolution of hardware and software capabilities of mobile devices and networks. This has opened up for rich user experiences and development of applications and services. Still, there is a big potential for improvement in how application developers can reach mobile users in a simple, rich and controlled way; a potential for improvement of the developer experience. Recent industry initiatives, such as Symbian Foundation, Android, and Apple iPhone, show varying degrees of openness and reach. What makes up a good developer experience? We take a look at technology trends, their impact and challenges.