Mobile Ad-hoc Networks (manet)

•MANET is MOBILE AD-HOC NETWORK.

•ADHOC MEANS ‘FOR THIS PURPOSES’.

•MANET IS SELF-CONFIGURING LESS INFRASTRUCTURE WIRELESS NETWORK THAT TRANSMITS FROM COMPUTER TO COMPUTER.

•DEVICES ARE FREE TO MOVE INDEPENDENTLY.

 

CHARACTERISTICS :-

1. DYNAMIC TOPOLOGY- Topology changes rapidly and unpredictably

2. POSSIBLY UNITE- directional links

3. CONSTRAINED RESOURCES- battery power

4. WIRELESS TRANSMITTER RANGE- Routers move randomly free

TYPES OF MANET:-

• VEHICULAR ADHOC NETWORK(VANETs)• INTELLIGENT VEHICULAR ADHOC

NETWORK(INVANETs)• INTERNET BASED MOBILE ADHOC

NETWORK(IMANETs)

ROUTING IN MANET:-PRO -ACTIVE (TABLE DRIVEN) ROUTINGREACTIVE (ON DEMAND) ROUTINGHYBRID ROUTING (BOTH PROACTIVE AND

REACTIVE)BACKPRESSURE ROUTING

Routing Protocols for MANETs

APPLICATION & USES OF MANET:-

MILITARY OR POLICE EXCERICESDISASTER RELIEF OPERATIONMINE SITE OPERATIONROBOT DATA ACQUISITOINSUITABLE FOR ALL EMERGENCY SITUATIONS

ADVANTAGES OF MANET:-PROVIDE ACCESS TO INFORMATION AND

SERVICES REGARDLESS OF GEOGRAPHIC AREA

NETWORK CAN BE SETUP AT ANY PLACE AND AT ANY TIME

WORKS WITHOUT ANY INFRASTRUCTUREWIRELESS COMMUNICATIONHIGH MOBILITYSMALL & LIGHT EQUIPMENT

DISADVANTAGES OF MANET:-Limited resourcesLimited physical securityLack of authorization facilitiesSecurity protocols for wired networks

cannot work for ad-hoc network

SOME EXAMPLES OF MANET:-LARGE IT CAMPUSEMPLOYEES OF COMPANY MOVING WITH IN

A LARGE CAMPUS WITH LAPTOPS &CELL PHONES

MOVING SOLDIERS WITH WERABLE COMPUTERS

SHOPPING MALLs, RESTAURANTs , COFFEE SHOPS CUSTOMERS SPEND PART OF THE DAY IN A NETWORK WHICH IS MANET NETWORK

CONCLUSION:-THUS FROM ABOVE WE CONCLUDE THAT

MANET IS A WIRELESS NETWORK WITH MANY ADVANTAGES AND A FEW DISADVATAGES.

MANET HAS MANY TYPES.MANET ALSO HAS MANY USES

&APPLICATION.

REFERENCES:-[1]. Tomas Krag and Sebastian Büettrich (2004-

01-24). "Wireless Mesh Networking". O'Reilly Wireles dev center.

[2]. H K SONI (2011-03-22). "Ad hoc network". DoS attack in MANET.

[3]. http://en.wikipedia.org[4]. http://www.ics.uci.edu/~keldefra/manet.htm[5]. http://www.wifinotes.com/how-to-setup-ad-

hoc-network.html[6]. http://www.antd.nist.gov/wahn_mahn.shtml[7].

http://www.oreillynet.com/pub/a/wireless/2004/01/22/wirelessmesh.html