Information Technology Reference
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Figure 14.3
V2R-based vehicle navigation systems.
Figure 14.4
V2V-based vehicle navigation systems.
[2,5,13]. In this type of architecture, there is no need to deploy roadside
units and BSs. Also, there is no need for TIC. Real-time traffic information
is collected and managed by vehicles themselves using V2V communication
links. Traffic information is relayed from one vehicle to another vehicle in
a multi-hop fashion. The advantage of V2V-based architecture is that no
infrastructure is required, which greatly reduces the overall installation and
maintenance cost. However, since vehicles are not stationary and V2V-based
architecture employs multi-hop relay, the failure rate of multi-hop relay is
higher than one-hop relay. From this point of view, V2R-based systems are
more reliable than V2V-based systems.
Since the V2R-based and V2V-based systems have their own advantages
and disadvantages, it is nature to combine both approaches. Figure 14.5
