UHD September - Page 14

qarvaB2708_4k 01/09/2015 12:00 Page 1 4K UHD OTT over 4,000 km... Degradation by distance is a problem for all OTT providers and 4K UHD will the biggest challenge yet, but Qarva has an answer. TT video on demand services such as Netflix and Prime have seen OTT steal a march on other transmission paths by providing 4K UHD options today. However, they are doing so by using multiple CDNs and, even then, providing a maximum performance of about 15Mb/s. As 4K UHD becomes more popular and, therefore, more demanded by the subscribers of all OTT providers – including for live streaming – then degradation becomes a problem that only mass deployment of CDNs can resolve, until now. At IBC Qarva (Stand 14.E30) will be demonstrating the transmission of the Eutelsat 4K UHD show channel from its headquarters in Tbilisi, Georgia, to Amsterdam using a single server. The transmission stream will be at the full 30Mb/s available from Eutelsat and will look indistinguishable from the satellite signal received on a dish in Tbilisi, despite an onward journey of 4,000 kilometres over the open Internet. This is made possible by Qarva’s aQua video server using its proprietary MultiPipe protocol. The server ‘splits’ the original stream up and delivers it via up to 32 separate, persistent, O TCP connections all the way to the client device. Each stream is typically 1-1.5Mb/s so an aggregated stream of 4045Mb/s is easily achievable. On the client – in the case of IBC, a Smart TV – sits more Qarva proprietary software that aggregates those connections to render the original stream at its full original bandwidth, or at the maximum bandwidth allowed by the local connection if that is lower. So, the viewer sees the original content in the same quality as it arrived at the CDN server and, for live TV, with a delay of only about two seconds even over a 4,000 kilometre journey. Unlike HLS, which delivers 10 second packets of data and, therefore, can have a ‘to live’ delay of up to 30 seconds as packets catch up, MultiPipe’s concurrent multiple connections means the data arrives for aggregation at the client in the near real time. And the provider only has to use one CDN server; the aQua. And aQua runs on any standard Linux server such as an HP380 or Dell. As with all Qarva’s products legacy integration has been considered from the outset; Qarva MultiPipe can be integrated as a proxy agent on older platforms on the end "Eutelsat 4K UHD live streamed over 4,000Km to IBC." "aQua runs on any standard Linux server." 14 EUROMEDIA UHD Special user device with the aggregated video stream output to the device’s legacy player as HTTP video stream or HLS video stream. George Mikeladze, CEO and founder of Qarva says: “We are dedicated to making OTT every bit as good and enjoyable an experience for the viewer as ‘regular’ digital broadcast television. To this end, we have spent many years developing technology solutions that improve the Quality of Experience (QoE) of OTT.” “This is particularly important with 4K UHD where OTT is ahead of the game because of VoD services like Netflix and Amazon. Now Qarva technologies mean live linear 4K UHD can be taken from source and streamed over the Internet to subscribers all over the world in original quality and all from one server.” “This is not a Peer-to-Peer solution, it does not carry an overhead for the subscriber’s bandwidth, the signal is actually split over many concurrent connections then reassembled by the cl Y[