ACARS Media Management - PowerPoint PPT Presentation

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ACARS Media Management

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  1. ACARS Media Management Prepared for DCIT #23 Systems Integration Working Group

  2. Why? • Media management is a part of the framework in which FANS operates. • Media management is used today to meet existing user requirements for shared use networks to be used for ATS services.

  3. Goals of media management inquiry • Establish a common understanding of ACARS media management • Media management may mean different things to different groups • Identify operational impacts of media management, if any • Identify systemic approaches to mitigating impacts of media management

  4. The state of ACARS media management as understood today • Existing media • VHF • Plain Old ACARS (POA) • AOA (VDL Mode 2) • SATCOM • INMARSAT • IRIDIUM • HF • Aircraft behavior depends greatly upon individual ship configuration • Ground (CSP) behavior driven by operator requirements • Can be affected by ground automation (FAA) requests (e.g. TEI) • Operator configuration controls order in which media are used

  5. Purpose of media in ACARS • POA – First media used for ACARS, extremely limited growth potential at this point • AOA – More efficient use of VHF spectrum, support for future technology (ATN) • SATCOM(INMARSAT) – Support for remote coverage, also first • HF – Adds to SATCOM with global coverage including polar coverage • IRIDIUM – Alternative form of global coverage

  6. Impacts to operation • Use of VDL Mode 2 media • Frequency and duration of usage • Latency • Thresholds for acceptability • Per service?

  7. Future possibilities for understanding • Types of timers in the CHI • What is the impact to controllers when these timers are exceeded