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Reference Broadcast Synchronization — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-31T12:35:11.535Z
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Reference Broadcast Synchronization — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_ff2010e79253 (Metraipolis archive dc_ff2010e79253, sha256 68c372039de48c3f1b435b938a4b2a1d34a5a9866dbca34a138530b1f3892546)

BibTeX

@misc{dcff2010e79253,
  title = {Reference Broadcast Synchronization — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_ff2010e79253; sha256 68c372039de48c3f1b435b938a4b2a1d34a5a9866dbca34a138530b1f3892546},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Reference Broadcast Synchronization (RBS) is a synchronization method in which the receiver uses the physical layer broadcasts for comparing the clocks. This slightly differs from traditional methods which synchronize the sender's with the receiver's clock. RBS allows nodes to synchronize their clocks to the resolution necessary for example for wireless sensor network applications. Rather than broadcasting a timestamp in a synchronization packet as in protocols such as Network Time Protocol, RBS allows the nodes receiving the synchronization packets to use the packet's arrival time as a reference point for clock synchronization. Because most of the non-deterministic propagation time involved in transmitting a packet over a wireless channel lies between the construction of the packet and the sender's transmitter (e.g., sender's queue delay, MAC contention delay, etc.), by timestamping only at the receiver, RBS removes most delay uncertainty involved in typical time synchronization protocols. For single-hop networks, the RBS algorithm is very simple. First, a transmitter broadcasts some number M as reference broadcasts. Each receiver that receives these broadcasts exchanges the time that each reference broadcast was received locally with its neighbors. Nodes then calculate phase shifts relative to each other as the average of the difference of the timestamps of the node's local clocks for the M reference broadcasts. In multihop networks, time synchronization can be performed hop by hop between two nodes as long as the nodes on each link along the path have a common node whose reference broadcasts they can synchronize to.

Tema degli esploratori: fiducia digitale e crittografia (deposito sistematico; ricerca «timestamping»).
Fonte: Wikipedia in inglese, voce «Reference Broadcast Synchronization» — https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization
Wikidata Q7307102: «precision physical-layer synchronization» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q7307102
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Reference_Broadcast_Synchronization?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1217215649, consultata il 2026-10-31T12:21:57.313Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: cfad3aa0cc17d41a86185bd85d34cc5fe2d6c4c16d78355f5e4a96307e5e8be5