The Advent of Network coding
Research Proposal: The Proposal mainly focuses on the new technique "Network
Coding" employed in wireless communications in order to improve the efficiency of
Throughput and High data rates. The main purpose of any communication system is to
transfer the data between source and destination (for both single cast / multicast) without loss
of originality. One can establish the communication path either through wired or wireless
connections depending on distance. In wired communications, the data transmission will be
done using wired-based technology which may include direct path between the source and
destination. Wired communication is packet-based or connection-orientated. Connection
based communication rely on a dedicated communication channel being set-up for exchange
of data / signalling between end-points. Most wired based communications are now packet-
based and data is broken into individually routable packets transmitted over an IP
infrastructure. A Signalling and management packet also exists with throughout the wired
network, and allows the propagation of routes to direct traffic. Numerous packet based
technologies Ethernet, ATM, MPLS, PPP, have evolved and compete to become more widely
deployed. Packetized communication can be considered to exist at 7 layers with layers 1,2
and 3 being relevant to communication on the wire. Switching occurs at layer 2 this is
typified by immediate communication with the neighbouring devices and no consideration to
global addressing. Layer 3 is the level at which decisions regarding traffic route taken, based
on packet addresses is made. Layer 1 is the physical wire or media employed. Wired
communications offer far higher speeds, with a possible 10 Gb now easily possible on one
cable, wireless
has approximately 300 Mbps maximum. Wireless allows free movement
of clients and deployment of networks in difficult environment such as the battlefield, where
wires couldn't be laid.
The drawback of coding schemes introduced at earlier stage of communication was end –to-
end connection which may include delay and also if the link or route between transmitter and
receiver failed may result in system failure. Hence in order to overcome this drawback,
Network coding was introduced by Ahlswede. In general traditional computer networks has
store and forward method where the routers receives the packets and forward the data
without modification. But introduction of Network coding made this method simple but very
effective way. Using network coding packets from same stream or different streams arrived at
routers are allowed to coded or mixed before forwarding.
Software used: Matlab
doc_291845038.pdf
Research Proposal: The Proposal mainly focuses on the new technique "Network
Coding" employed in wireless communications in order to improve the efficiency of
Throughput and High data rates. The main purpose of any communication system is to
transfer the data between source and destination (for both single cast / multicast) without loss
of originality. One can establish the communication path either through wired or wireless
connections depending on distance. In wired communications, the data transmission will be
done using wired-based technology which may include direct path between the source and
destination. Wired communication is packet-based or connection-orientated. Connection
based communication rely on a dedicated communication channel being set-up for exchange
of data / signalling between end-points. Most wired based communications are now packet-
based and data is broken into individually routable packets transmitted over an IP
infrastructure. A Signalling and management packet also exists with throughout the wired
network, and allows the propagation of routes to direct traffic. Numerous packet based
technologies Ethernet, ATM, MPLS, PPP, have evolved and compete to become more widely
deployed. Packetized communication can be considered to exist at 7 layers with layers 1,2
and 3 being relevant to communication on the wire. Switching occurs at layer 2 this is
typified by immediate communication with the neighbouring devices and no consideration to
global addressing. Layer 3 is the level at which decisions regarding traffic route taken, based
on packet addresses is made. Layer 1 is the physical wire or media employed. Wired
communications offer far higher speeds, with a possible 10 Gb now easily possible on one
cable, wireless
has approximately 300 Mbps maximum. Wireless allows free movementof clients and deployment of networks in difficult environment such as the battlefield, where
wires couldn't be laid.
The drawback of coding schemes introduced at earlier stage of communication was end –to-
end connection which may include delay and also if the link or route between transmitter and
receiver failed may result in system failure. Hence in order to overcome this drawback,
Network coding was introduced by Ahlswede. In general traditional computer networks has
store and forward method where the routers receives the packets and forward the data
without modification. But introduction of Network coding made this method simple but very
effective way. Using network coding packets from same stream or different streams arrived at
routers are allowed to coded or mixed before forwarding.
Software used: Matlab
doc_291845038.pdf