Comparative Study of MANET and VANET

MANET COMPARE VANET
Arranged by :
group 4A
1. Nurul Puspita sari (13441073)
2. Windi Antika (13441084)
3. Yusnaini Khairunnisa (13441087)
4. Yusniar (13441078)
Study program: Information Systems

Comparative Study of  MANET and VANET

Routing Protocols

Abstract— A Vehicular Ad-hoc Network (VANET) is a type of Mobile Ad-hoc Network (MANET) that is used to provide communications between nearby vehicles, and between vehicles and fixed infrastructure on the roadside. Though VANET is a type of MANET but the routing protocols of MANET are not feasible with VANET and if they are even feasible then they are not able to provide the optimum throughput required for a fast changing vehicular ad-hoc network. The difference between VANET and MANET is that in VANET, the nodes are moving on predefined roads, and their trails aren’t too complicated and this is where the routing protocols have to be modified or changed. The differences in the architecture and characteristics have been studied in this paper to suggest the best out of the existing routing protocols. This paper presents the various protocols optimized for both the MANET and VANET. A protocol is analyzed from the existing reactive protocols which will be efficient for both the MANET and VANET.

Keywords— Mobile Ad hoc network (MANET), Vehicular Ad-hoc Network (VANET), Proactive, Reactive, Mobility.

I. INTRODUCTION

A mobile ad hoc network is a collection of two or more nodes equipped with wireless communications and networking capabilities without central network control, which may be referred to as an infrastructure-less mobile network. Vehicular Ad-hoc Networks (VANETs) represent a rapidly emerging, particularly challenging class of Mobile Ad Hoc Networks (MANETs). VANETs are distributed, self organizing communication networks built up by moving vehicles, and are thus characterized by a very high node mobility and limited degrees of freedom in the mobility patterns. We have a number of ad hoc routing protocols [3, 10, 12] for MANETs but when we have to deal with a VANET then we require ad hoc routing protocols that must adapt continuously to the unreliable conditions. Why MANET Protocols Not Feasible in VANETs: Analysis of traditional routing protocols for mobile Ad-hoc networks (MANETs) demonstrated that their performance is poor in VANETs [16]. The main problem with these protocols in VANETs environments is their route instability. The traditional node-centric view of the routes (i.e., an

Established  route is a fixed succession of nodes between the source and destination) leads to frequent broken routes in the presence of VANETs’ high mobility [20], as illustrated in figure below. Consequently, many packets are dropped and the overhead due to route repairs or failure notifications increases significantly, leading to low delivery ratios and high transmission delays.

1.   Mobile Ad Hoc Network (MANET)

MANET is a network consisting of multiple nodes are mobile, where mobile nodes can communicate without using the communication lines are permanent, or temporary (ad-hoc). In contrast to other wireless networks, MANET does not require network infrastructure and has a topology change at any time. Therefore, MANET has the ability to configure the network independently.

MANET has nodes that are mobile which can move in any direction to perform communication. Nodes in the network also serves as a router that is able to forward the message to be delivered to the recipient. Each node on the network MANET should be able to determine the best route for forwarding packets of information and send it as a failure if no service interruption, then the node fix the route.

2.MANET(INFRASTRUCTURE LESS(ADHOC)) ARCHITECTURE AND CHARACTERISTICS

In ad-hoc networks all nodes are mobile and can be connected dynamically in an arbitrary manner. As the range of each host’s wireless transmission is limited, so a host needs to enlist the aid of its nearby hosts in forwarding packets to the destination if it wants to communicate with hosts outside its transmission range. So all nodes of these networks behave as routers and take part in route discovery and maintenance of routes to other nodes in the network. The ad-hoc routing protocols can be divided into two categories.

Table-Driven Routing Protocols: In table driven routing protocols, consistent and up-to-date routing information to all nodes is maintained at each node.

On-Demand Routing Protocols: In On-Demand routing protocols, the routes are created as and when required. When a source wants to send to a destination, it invokes the route discovery mechanisms to find the path to the destination.

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