Vehicular Reactive Routing protocol: Difference between revisions

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Latest revision as of 18:21, 19 July 2025

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{{Distinguish|Virtual Router Redundancy Protocol}}

{{Orphan|date=March 2012}}

{{Multiple issues|

{{More citations needed|date=July 2025}}

'''Vehicular Reactive Routing protocol (VRR)'''<ref>{{Citation

{{Notability|date=July 2025}}

}}

'''Vehicular Reactive Routing protocol''' ('''VRR)''')<ref>{{Citation

| last1 = Koubek| first1 = Martin

| author1-link =

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| ___location = Finland

| date = 2008-09-11

| issn = 1883-1192 }}</ref> is a reactive routing protocol with geographical features which is specifically designed for [[Wireless Access for the Vehicular Environment]] (WAVE) standard in [[Vehicularvehicular ad hoc Networknetwork]]s ([[VANET]]sVANETs). The protocol takes advantages of the multichannel scheme defined in WAVE and uses the Control Channel (CCH) for signalling, and relies on one of the multiple Service Channels (SCHs) for payload data dissemination.

==Protocol design==

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Due to these modifications, a route is firstly established over the CCH and afterwards data are transmitted over the SCH.

==VRR Protocolprotocol Messagesmessages==

The VRR protocol uses 3 signalling message types. Messages, route request (RREQ) and route reply (RREP) are broadcast on the CCH and acknowledgment (ACK) packets are transmitted on the SCH. Data packets are IPv6 packets and are transmitted after route discovery or route maintenance on one of SCHs. RREQ and RREP are situated inside the WRA field of WSA frame and on each hop the WSA frame is discarded and a new WSA frame created. Both messages are transmitted in the lowest Traffic Class (background).

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{{Reflist}}

[[Category:Routing protocols]]

[[Category:Ad hoc routing protocols]]

[[Category:Routing algorithms]]

[[Category:Routing protocols]]