Monday, June 8, 2015

Data traffic optimization feature set

Data traffic optimization in wireless networks has reached a mature stage as a technology . The innovations that have marked the years 2008 – 2012 are now slowing down and most core vendors exhibit a fairly homogeneous feature set. 

The difference comes in the implementation of these features and can yield vastly different results, depending on whether vendors are using open source or purpose-built caching or transcoding engines and whether congestion detection is based on observed or deduced parameters.

Vendors tend nowadays to differentiate on QoE measurement / management, monetization strategies including content injection, recommendation and advertising.

Here is a list of commonly implemented optimization techniques in wireless networks.
  •  TCP optimization
    • Buffer bloat management
    • Round trip time management
  • Web optimization
    • GZIP
    •  JPEG / PNG… transcoding
    • Server-side JavaScript
    • White space / comments… removal
  • Lossless optimization
    • Throttling / pacing
    • Caching
    • Adaptive bit rate manipulation
    • Manifest mediation
    • Rate capping
  • Lossy optimization
    • Frame rate reduction
    • Transcoding
      • Online
      • Offline
      • Transrating
    • Contextual optimization
      • Dynamic bit rate adaptation
      • Device targeted optimization
      • Content targeted optimization
      • Rule base optimization
      • Policy driven optimization
      • Surgical optimization / Congestion avoidance
  • Congestion detection
    • TCP parameters based
    • RAN explicit indication
    • Probe based
    • Heuristics combination based
  • Encrypted traffic management
    • Encrypted traffic analytics
    • Throttling / pacing
    • Transparent proxy
    • Explicit proxy
  • QoE measurement
    • Web
      • page size
      • page load time (total)
      • page load time (first rendering)
    • Video
      • Temporal measurements
        • Time to start
        • Duration loading
        • Duration and number of buffering interruptions
        • Changes in adaptive bit rates
        • Quantization
        • Delivery MOS
      • Spatial measurements
        • Packet loss
        • Blockiness
        • Blurriness
        • PSNR / SSIM
        • Presentation MOS

An explanation of each technology and its feature set can be obtained as part of the mobile video monetization report series or individually as a feature report or in a workshop.

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