Protocol Independent Adaptive Route Update for VANET

Table 1

Routing update strategy comparison.

Primary factor	Options	Routing preference
Application needs	Control messages	Reactive
	Broadcast	Reactive
Node deployment	Ad hoc	Proactive
	Hybrid (Clustered biased)	Hybrid
	Hybrid (Infrastructure biased)	Reactive
Mobility model	Random	Proactive
	Bidirectional probabilistic	Reactive
	Multidirectional probabilistic	Hybrid
Node density	High	Reactive
	Low	Proactive
Scalability	High	Reactive
	Low	Proactive
Relative mobility	High	Hybrid
	Medium	Proactive
	Low	Reactive
QoS requirement	Throughput	Reactive
	Jitter	Proactive
	Delay	Proactive