MANET in Mobile Computing

MANET in Mobile Computing

• 1.
  MANET
• 2.
  DEFINITION A mobile adhoc network (MANET) is a continuously self-configuring, infrastructure- less network of mobile devices connected without wires. Each device in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently.
• 3.
  DIAGRAM
• 4.
  CHARACTERISTICS OF MANET 1)In MANET, each node act as both host and router. That is it is autonomous in behavior. 2) The nodes can join or leave the network anytime, making the network topology dynamic in nature. 3) Mobile nodes are characterized with less memory, power and light weight features.
• 5.
  CHARACTERISTICS OF MANET 4)All nodes have identical features with similar responsibilities and capabilities and hence it forms a completely symmetric environment. 5) When a source node and destination node for a message is out of the radio range, the MANETs are capable of multi-hop routing.
• 6.
  PROS OF MANET 1)Scalable—More number of nodes can be formed. 2) The network can be set up at any place and time. 3) Less expensive as compared to wired network. 4) They provide access to information and services regardless of geographic position.
• 7.
  LIMITAIONS OR CHALLENGESOF MANET 1) The wireless link characteristics are time- varying in nature (i.e.) There are transmission impediments like fading, path loss, blockage and interference that adds to the susceptible behavior of wireless channels.
• 8.
  LIMITAIONS OR CHALLENGESOF MANET 2) Limited range of wireless transmission. (i.e.) The data rates are low when compared to the wireless networks.
• 9.
  LIMITAIONS OR CHALLENGESOF MANET 3) Packet losses due to errors in transmission (i.e.) MANETs experience higher packet loss due to factors such as hidden terminals that results in collisions, interference, frequent breakage in paths caused by mobility of nodes, increased collisions due to the presence of hidden terminals problems.
• 10.
  LIMITAIONS OR CHALLENGESOF MANET 4) Frequent network partitions The random movement of nodes often leads to partition of the network. This mostly affects the intermediate nodes.
• 11.
  LIMITAIONS OR CHALLENGESOF MANET 5) Limitations of Mobile Nodes The mobile nodes have short Battery Life
• 12.
  APPLICATIONS OF MANET 1)Military Ad-Hoc networking would allow the military to take advantage of technology to maintain an information network between the soldiers, vehicles, and military information head quarter.
• 13.
  APPLICATIONS OF MANET 2)Rescue Operation Ad hoc can be used in emergency/rescue operations for disaster relief efforts, e.g. in fire, flood, or earthquake.
• 14.
  APPLICATIONS OF MANET 3)Business Work Whenever any emergency meeting is planned outside the office exchange of information on a given project is made possible by means of MANET.
• 15.
  APPLICATIONS OF MANET 4)Classroom and Conference Ad-Hoc networks can autonomously link an instant and temporary multimedia network using notebook computers to spread and share information among participants e.g. conference or classroom.
• 16.
  APPLICATIONS OF MANET 5)Personal Area Network A personal area network is a short range, localized network where nodes are usually associated with a given person.