Research paper on the TCP protocol and its handling of bottlenecks, with a simple comparison between several copies of the protocol.
In this paper, we propose modifications to TCP by
introducing adaptive delay and loss response (TCP-ADaLR) to
mitigate the adverse effects of satellite link characteristics.
Wireless networks suffer from frequent loss of packets for many reasons such as
interference, collision and fading. This makes wireless medium unreliable medium for data
transfer. The main methods for ensuring the reliability in this medium are usi
ng
transmission control protocol (TCP) and the automatic repeat request (ARQ). Recently,
network coding has been found as new technology that changes the traditional forwarding
method (Store- and- Forward) in the networks to more effective and intelligent method
(Code- and- Forward), which contributes to the increase of both capacity and throughput of
these networks.
In this research, random linear network coding is used as promising technology that
aims to achieve the reliable transfer of data in losing wireless networks, and studying the
enhancement that this technology presents to the performance of these networks in unicast
and multicast transmission. For evaluating the efficiency of this technology and comparing
its performance with the performance of reliable transfer protocols, we use the networks
simulator (NS3). Simulation results showed that random linear network coding achieve the
reliable transfer of data with bigger throughput and less delay and number of transmission
compared with the protocols (TCP, ARQ).
Long Term Evolution “LTE” is considered to be one of the most
important and latest communication technologies falling under the fourth
generation of cellular communications technology 4G. LTE supports
high-speed and large bandwidth which makes it
a great candidate to
providing the potential to improve the Quality of Service "QoS"
associated with specific types of data transfer. As a consequence,
researchers have paid their attentions to this type of networks. In fact, it
was a great challenge for researchers to achieve a good level of QoS for
all users as the LTE provides Audio and Data transmission to users at the
same time.
This research is mainly about the influence of protocols on the
performance of Satellite Communication.
We have studied and compared many TCP variants recently proposed.
This research includes an amendment to a TCP-Peach+ protocol to improve the performance of the TCP over satellite links, Where the protocol has been proposed based on splitting the connecting path between the source and target, in order to obtain a
n adjusted protocol of the kind of Satellite transport protocol (STP) specialized in the space segment only, and that by proposing a new algorithm for this protocol which is located under the satellite transport layer (STL). We have focused in our research on a comparison between the proposed protocol and TCP-Peach+ protocol.
