Analisis Performa Protokol GPSR Dan GPSR-HLS Pada Jaringan Vehicular Ad hoc Network (VANET)

One of the main characteristics of VANET networks is the high node speed, which causes
the network topology to change rapidly. This becomes an obstacle in sending data packets
between one node and another node. The challenge faced in VANET is choosing the right routing
protocol in accordance with the existing scenario. Types of VANET routing protocols can be
categorized into several types, namely topology, geographic, cluster, broadcast and geocast
based protocols. Greedy Perimeter Stateless Routing (GPSR) is an example of a geographical
routing protocol that uses the position of a node geographically to determine its destination. The
performance shown by the GPSR protocol in previous studies shows a fairly good performance,
but there are still weaknesses in the recovery mechanism of sending data packets. The method
that can be used to deal with these problems is to use Hierarchical Location Service (HLS), which
is a service to determine the position of a node based on a hierarchy. Testing with urban scenarios
in Malang based on the maximum node speed, number of nodes, and data packet size shows the
performance of the GPSR-HLS protocol has increased in the number of data packets received at
the receiving node to above 95% in all three scenarios.