Sarah Bailey: What kind of pressure is the growth of online video placing on our networks?
Patrick Lopez: Video currently accounts for over 60% of mobile data traffic and it is the fastest growing service in telecommunications. Multiple polls and surveys show that more than 66% of video sessions suffer from late start, buffering interruption, poor picture quality or do not even start.
Our networks have not been designed to deliver video efficiently or in a managed fashion and the current work that is being done to chart 5G, network function virtualization or software defined networking is not really taking video as a dominating use case. With 2K, 4K and 8K video formats emerging over the next years, our industry must look at video as a specific service if it wants to have a chance to grow profitably.
Is increased speed the answer to sometimes troubling standards of user experience?
If net neutrality provisions prevent operators from managing actively video traffic, the user experience will continue to suffer, independently to the increased speed offered by networks.
More speed or more capacity without control results in more congestion and a poorer user experience. The answer to our current issues resides in a better controlled and managed video delivery.
Active traffic management, traffic steering and intelligent video policy engines are the key to decrease pressure on congested networks and increase user experience.
Can we measure latency and variability of latency enough to base pricing on them?
No. Specifically, video streaming services are an end-to-end system and overall latency depends on a variety of factors from devices, radio access networks, core networks, backhaul, CDN and content providers. These systems are not well integrated to be able to accurately measure and manage latency end to end.
Are the Internet of Things and Virtualization glossing over underlying network problems?
They are not taking into account the increasing tendency for encrypted traffic. Additionally, as an industry, we tend to research new technologies and try and find an application to them, instead of designing services and then adjusting / creating technology to fit our purposes.
What will be the key new technology or trend that will shift operator thinking towards investing Network QoE?
Mobile video advertising is one of the largest network operators’ revenue opportunities in the next five years and it will be realized only if a more integrated QoE measurement and management is implemented in mobile networks.
Patrick Lopez will be participating in an interactive discussion, ‘What will be the Impact of the Net Neutrality Debate on Long Term Network Strategy?’ on day one of the Broadband World Forum, Tuesday 20th October