Answer to Question #258350 in Computer Networks for Chakalaka

Question

Your term paper should investigate the behaviour of devices in a wireless network. To

obtain a topic that is suitable for investigation, please pick one or two parameters from

the list below, or add own suggestions:

 number, distance, position of nodes

 type and size of interface queues

 number, destination, type of traffic flows

 number and size of data units in a flow

 directionality of the flow(s)

 routing protocol in use

 transport-layer protocol in use

Then pick one or two possible results to be investigated from the list below, or add own

suggestions:

 reachability of nodes

 success rate of transmission

 bytes transmitted per unit of time

 delay and jitter in a traffic flow

 duration of transmission setup (time before first data unit is transmitted)

 handover properties

Answer 1

Data communication is transmission of data between different devices. The basic requirements of any communication system are source, destination and communication medium. In wireless Network they do not require any fixed infrastructure, Traditional infrastructure environment has evolved into the ad hoc environment. Ad hoc Networks are self- configuring network of wireless devices with no access point or a centralized control. Every node in the network is independent to join or leave the network at any time. Each intermediate node in the network can act as a router to forward a packet for path discovery. Due to node mobility, the topology of the network changes randomly and frequently. Ad Hoc networks have gained a lot of attention because of its significant advantages brought like multi-hop and infrastructure-less transmission. In ad-hoc network this is achieved by multi-hop wireless links since there is no fixed path defined. Therefore there is the need of routing protocols eg proactive suitable for larger network due to congestion, reactive protocol which enables self-initiating between mobile nodes. For reliable data delivery from the source to the destination, this protocols are needed.