Optimizing mobile media delivery and the impact of encryption

5G Americas
15 Nov 2016
00:00

The white paper focuses on three aspects of mobile video optimization: source optimization, network optimization and client optimization. The source optimization techniques discussed include Adaptive Bit Rate and Video Compression. Network optimization includes TCP optimization, Network Aware Congestion Control, Radio Friendly Pacing and caching. Finally, client optimization techniques include Device Buffering and Server and Network Aware Dynamic Adaptive Streaming (DASH). The user experience can be enhanced when the source, the client and the network are optimized in relationship to one another.

The paper presents some reasons for encryption and protocol evolution driven by privacy, security concerns and the desire by internet players to restrict the role of network operators/middle boxes. This has led to development of new protocols, including HTTP/2 and QUIC, that attempt to enhance the user experience by overcoming the inherent issues with TCP. At the same time, they create network management challenges for mobile operators that can degrade the user experience. Also, there are different protocols that have evolved from TCP and UDP. Furthermore, there is an IETF working group on QUIC.

The important aspect highlighted in this white paper is the need for is fostering a cooperative/collaborative relationship between internet providers and mobile network operators. This cooperation should enable the development of optimized protocols for mobile video that respect user privacy without compromising network management.

This white paper was first published on 5G Americas website

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