Mobile Ad Hoc Network Temporarily Forms a Network without Support

I. INTRODUCTION

Mobile Ad hoc network (MANET) is a self configuring infrastructureless network of mobile devices .MANET is a collection of wireless mobile nodes that dynamically form a network temporarily without any support of central administration. Mobile ad hoc network is a collection of wireless mobile nodes that establishes the network in absence of fixed infrastructure.MANET routing protocols possess two properties such as:

1. QUALITATIVE PROPERTIES.

2. QUANTITATIVE PROPERTIES.

1.Qualitative properties involves:

• Distributed operation

• Loop freedom

• Demand based routing

• Security

2.Quantitative properties involves:

• End to end throughput.

• Delay

• Route discovery time

• Memory byte requirement

• Network recovery time

2. RELATED STUDY:

A Mobile Ad-hoc Network (MANET) is a temporary wireless network composed of mobile nodes, in which an infrastructure is absent. Nodes in these networks utilize the same random access wireless channel, cooperating in a friendly manner to engaging themselves in multihop forwarding. The nodes in the network not only acts as hosts but also as routers that route data to/from other nodes in network .

Characteristics of MANETs:

1.Dynamic network topology:

MANET can be formed without any preexisting infrastructure.As the nodes move,the topology may change rapidly and the connectivity within the network varies with time.

2.Distributed operations:

Nodes collaborate operations to implement functions and not a single node is solely responsible for the overall operation.. Every node in the MANET can assist in routing of packets in the network.

3.It follows dynamic topology where nodes may join and leave the network at any time and the multi-hop routing may keep changing as nodes j...

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...air of survey papers from which we identified early reactive and proactive MANET routing protocols. Our review focuses upon protocols developed by Perkins, namely the Destination Sequenced Distance Vector (DSDV) and Ad-hoc On-demand Distance Vector (AODV) which researchers claim is the most popular MANET routing protocol. Due to the popularity of the AODV protocol a number of variations and improvements on the core protocol have been proposed by researchers to address specific issues with the protocol. We investigate the evolution of the AODV protocol by reviewing works based upon the Multicast Ad-hoc

On-demand Distance Vector (MAODV), developed by [18], this protocol adds multicasting support to the core AODV protocol. A number of researchers highlighted the lack of security mechanisms within the original AODV protocol as a major concern for deployment of a MANET.