Table 1 A comparison of data dissemination protocols for VANETs
From: Collecting road traffic information using vehicular ad hoc networks
Forwarding strategy | Messages per hop | Simulated scenarios | Assumptions | ||||||
|---|---|---|---|---|---|---|---|---|---|
Protocol | Probabilistic | Distance | Straight road | Intersection | Multi-sessions | GPS | Map | RSU | |
SAB [13] | ✓ | One (broadcast) | ✓ | ||||||
Weighted p-persistence [7] | ✓ | One (broadcast) | ✓ | ✓ | |||||
Slotted 1-persistence [7] | ✓ | One (broadcast) | ✓ | ✓ | |||||
IF [8] | ✓ | ✓ | One (broadcast) | ✓ | ✓ | ||||
PREDAT [14] | ✓ | ✓ | One (broadcast + periodic beacons) | ✓ | ✓ | ✓ | ✓ | ||
DRIVE [15] | ✓ | One (broadcast) | ✓ | ✓ | ✓ | ✓ | |||
DOT [12] | ✓ | One (broadcast + periodic beacons) | ✓ | ✓ | |||||
IVG [9] | ✓ | One (broadcast, with rebroadcast overhearing) | ✓ | ✓ | |||||
DRG [10] | ✓ | One (broadcast, with rebroadcast overhearing) | ✓ | ✓ | ✓ | ||||
EDB [6] | ✓ | Two (broadcast request, ack) | ✓ | ✓ | ✓ | ✓ | |||
TSM [11] | ✓ | Three (broadcast + periodic beacons) | ✓ | ✓ | ✓ | ||||
UMB [4] | ✓ | Four (broadcast RTS, CTS, data, ack) | ✓ | ✓ | ✓ | ✓ | ✓ | ||
SB [5] | Four (broadcast RTS, CTS, data, ack) | ✓ | ✓ | ||||||
Route finding [17] | ✓ | Two (broadcast request, unicast reply) | ✓ | ✓ | ✓ | ✓ | |||
Geocache [16] | ✓ | Two (broadcast request, unicast reply) | ✓ | ✓ | ✓ | ||||