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Efficient MCCAOP Advertisements Strategy and Implementation

This presentation delves into the concepts and rationale behind MCCAOP advertisements as outlined in Draft 7.03. It includes a comparison with the mechanism in 11-10/814, focusing on reservations distribution and signaling methods. The speaker suggests enhancements, such as expanding the number of advertised elements, utilizing sets, and optimizing reporting functionalities. Key points include the benefits of distributing reservations over elements, modular addition, and deletion, and the importance of effective signaling for improved efficiency in MCCAOP advertisements.

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Efficient MCCAOP Advertisements Strategy and Implementation

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  1. MCCAOP Advertisement motivation discussion Authors: Date: 2010-12-05 Dee Denteneer, Philips

  2. Abstract This presentation explains the concepts and motivation of MCCAOP advertisments as in the Draft 7.03 and a comparison with the mechanism as given in 11-10/814. Dee Denteneer, Philips

  3. MCCAOP Reservations, as in Draft 7.03 • Distribute reservations over various elements • The number of reservations per elt is limited <= 62 • Advertise at least one element regularly • Advertise changed elements regularly • If the number of elt <= 8 • identify the elts via an ID • Allows modular addition and deletion of reservations • Allows limited signalling in Beacon and Probe • Else • Signal ‘partial report‘ in element • Elements not further identified • Limited certainty at receiver; mainly to cover the case of too many reservations (i.e. More than 8*62) Dee Denteneer, Philips

  4. Changes per 814r1 • Introduce a set, and set ID • group current elements in a set • Increase # elements for a set to 16 (from 8) • Introduce Distributed or partial report over all levels of reporting mechanism: per set/ element / per report Dee Denteneer, Philips

  5. Advantages (?) • If the set is complete, • can distribute the reservations over 16 elements • Needs 2B for this in every element. • We can also increase the ID size to 1B (now 3 bits) and add 1B to every element, can then use 2^8 elements • Signals ‘incomplete’ report on many levels • Shares the limited use of the current partial report • But uses a whole Zoo of bits for this • Easy deletion of the current set of reservations • ? Dee Denteneer, Philips

  6. Suggestions • Allow >= 1 element per Advertisement frame, as per 814r1 • Allow at most 1 per Beacon and Probe Response, as per Draft(?) • Allow more than 8 elements to advertise • E.g. 2^8 • If 2^8 elements are alllowed, remove the ‘partial’ functionality • Upperbound the MaxTrackStates by 2^8 * 62 • Keep or delete the Set Sequence number (?) • First spell out advantages Dee Denteneer, Philips

  7. References • 11-10/814r1 „MCCAOP Advertisements“ • contains normative text implementing these ideas • IEEE 802.11s D7.02 Dee Denteneer, Philips

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