Reactive and Proactive Routing Strategies in Mobile Ad Hoc Network
Md. Ibrahim Talukdar, Md. Sharif Hossen · 2021
Mobile ad hoc networks (MANETs) are networks where wirelessly connected devices connect with each other with no central administration. In MANETs, nodes act as both workstations and routers. Due to the nodes’ mobility, interference, and multipath propagation, there is no fixed topology in these networks. In these networks, the routing becomes much more complex and crucial. To establish emergency communication in such a scenario, a selective proper routing protocol is required. In this chapter, the detailed Quality of Service (QoS) comparison among reactive Ad Hoc On-Demand Distance Vector (AODV), Dynamic Source Routing (DSR), and proactive Destination-Sequenced Distance-Vector Routing (DSDV) protocols in MANETs are analyzed and sketched for varying the number of nodes, packet sizes, data rates, and the velocity of nodes in order to find the suitable routing protocol, which works best in a particular mobile network scenario. The QoS parameters, i.e., packet delivery, delay, overhead ratio, and throughput, are calculated through AWK scripts using an NS-2 simulator. Simulation is performed under the IEEE 802.11 MAC layer with the Constant Bit Rate (CBR) traffic pattern. The outcome of this chapter reflects that each routing protocol performs better under certain circumstances wherein AODV performs well in most cases for an ad hoc networking scenario.