A Review: TCP Variants with MANET (original) (raw)
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Transmission Control Protocol (TCP) is a reliable which maintains end-to-end senentics and it is one of the core of the internet protocol (IP) suite responsible for transmission of internet traffic and very efficient for wired networks. However, experimental analysis and research showed that, TCP's congeation control algorithm performs poorly over Mobile Ad-Hoc Networks with degraded throughputs, fairness services and energy consumption. In this paper we present the reviews and simulated result based comparision of TCP-Variants in terms of throughput, delay and packet drop. Our result based analysis showed that, traditional TCP congestion control protocol fails in MANET whereas Proactive and BWE based TCP-variants gives improved performance in terms of throughput, delay and packet drop. Hence there is motivation for RTT and BWE based investigation and research desirable for adapting TCP over Mobile Ad-Hoc Networks.
A Survey on Performance of Congestion Control Mechanisms for Standard TCP Versions
2011
Transmission Control Protocol (TCP) is a basic communication language and a connection oriented protocol tied with transport layer consists of collection of rules and procedures to control communication between links. There are many TCP variants that modified and developed with respectively with the communications needs. Most of TCP current versions are include set of algorithms which built to control the congestion in critical links of network with maintaining the network throughput. In present years, TCP has been faced the fast growth in internet in parallel with the demand increasing to transfer the media on high speed links supported TCP. In the last years, computer networks and mobile cellular systems have qualified incredible evolution and a lot of computers and other user equipment's become linked together with most mutual protocol stack used being TCP . Currently, it is hard to recognize the congestion control mechanisms that are applied by different engines in Internet. One more imperative problem is the manner that these mechanisms are employed in diverse operating systems. The greatest universal transport protocol involved is the TCP and in the original accomplishment of TCP, a very small number of variants were done to minimalize the congestion in network path. Employment used accumulative confident acknowledgements and the expiration of a retransmission timer to afford reliability based on a modest go-back-n model. Some successive variants of TCP grounded on the mechanisms of congestion control and avoidance have been proposed and established. This article introducing a study and background to the performance of different congestion control mechanisms with various TCP variants and provide an investigation to the behavior for each mechanism.
Investigation of TCP Congestion Control with Reliable Communication Technique in MANET
International Journal of Computer Applications, 2013
A Mobile Ad Hoc Network (MANET) is a self-organizing, infrastructure less, multi-hop network. The wireless and distributed nature of MANETs poses a great challenge to system security designers. Congestion takes place in MANETs with limited resources. In these networks, shared wireless channel and dynamic topology leads to interference and fading during packet transmission. Packet victims and bandwidth dilapidation are caused due to congestion, and thus, time and energy is wasted during its recovery. This approach and apply Enhanced TCP technique and get improve result of TCP previous technique and eliminate the congestion from the network after that analyze result through various network parameter like routing overhead , throughput, packet delivery ratio , TCP packet analysis etc.
TRANSMISSION CONTROL PROTOCOL AND CONGESTION CONTROL: A REVIEW OF TCP VARIANTS
Transmission control protocol (TCP) provides a reliable data transfer in all end-to-end data stream services on the internet. There are some mechanisms that TCP has that make it suitable for this purpose. Over the years, there have been modifications in TCP algorithms starting from the basic TCP that has only slow-start and congestion avoidance algorithm to the modifications and additions of new algorithms. Today, TCP comes in various variants which include TCP Tahoe, Reno, new reno, vegas, sack etc. Each of this TCP variant has its peculiarities, merits and demerits. This paper is a review of four TCP variants, they are: TCP tahoe, Reno, new reno and vegas, their congestion avoidance algorithms, and possible future research areas.
Evolution of Congestion Control Mechanisms for TCP and Non TCP Protocols
2013
Modern world of communication is demanding wired as well as wireless communication to provide faster data transmission that too in huge data amount. Now mobiles are no more just for calling. Each and every application of mobile is demanding Internet. This paper is written with the aim to study upon how the problem of congestion is taken care by the existing congestion control mechanisms. What are the options available in congestion control and what are their characteristics. This paper also explains the classification of congestion control schemes which came one after the other in the last decade. This paper briefly describes study on congestion control algorithms, its classification, its compatibility with TCP which is a most widely used protocol, few non TCP but popular congestion control algorithms and the analysis and conclusion of problem statement.
2019
A comparative study has been carried out to find the performance of each of TCP New-Reno, TCP Fack, TCP Sack and TCP Vegas for congestion control in Mobile-Ad-Hoc Networks(MANET). For this, two Ad-hoc routing protocol, such as AODV, DSR and one table driven protocol, DSDV have been implemented. For this various node densities and the above three different protocols, simulation data and thus graphs have been obtained for each of TCP Variants for congestion control mechanisms. The simulation study has been done by using widely recognized network simulator NS-2, version 2.29.3 for Manet. The performance studies have been done by analyzing these data for each of them and comparison has been made and results have been discussed.
Exploration and evaluation of traditional TCP congestion control techniques
TCP or Transmission Control Protocol represents one of the prevailing ''languages'' of the Internet Protocol Suite, complementing the Internet Protocol (IP), and therefore the entire suite is commonly referred to as TCP/IP. TCP provides reliability to data transferring in all end-to-end data stream services on the internet. This protocol is utilized by major internet applications such as the e-mail, file transfer, remote administration and world-wide-web. Other applications which do not require reliable data stream service may use the User Datagram Protocol (UDP), which provides a datagram service that emphasizes reduced latency over reliability. The task of determining the available bandwidth of TCP packets flow is in fact, very tedious and complicated. The complexity arises due to the effects of congestion control of both the network dynamics and TCP. Congestion control is an approved mechanism used to detect the optimum bandwidth in which the packets are to be sent by TCP sender. The understanding of TCP behaviour and the approaches used to enhance the performance of TCP in fact, still remain a major challenge. In conjunction to this, a considerable amount of researches has been made, in view of developing a good mechanism to raise the efficiency of TCP performance. The article analyses and investigates the congestion control technique applied by TCP, and indicates the main parameters and requirements required to design and develop a new congestion control mechanism.
Demonstration of the Functioning of TCP Protocol Used for Network Congestion Control
Congestion can occur when the quality of service in a network reduces as a result of a node or link conveying too many data. TCP is the most widely used protocol for Internet traffic, including email, web browsing, data and an increasing portion of multimedia content delivered in real time using the HTTP/TCP protocols. Performances of existing TCP congestion control algorithms degrade significantly when deployed over wireless networks. TCP was designed primarily for reliability as opposed to real time delivery, but the problem is particularly severe for real time applications, such as, HTTP/TCP based streaming. In this paper, we carried out a research on the TCP’s four related congestion control algorithms, namely: slow-start, congestion avoidance, fast retransmit and fast recovery. We studied the behaviour and implementation of slow-start and congestion avoidance algorithms, as well as the modifications to the fast retransmit and fast recovery. We used the OPNET Network Model as our methodology. The TCP performance on the network was modeled, first without background traffic and then with background traffic. We compared these algorithms using the same network model to deterministically check several scenarios; and simulations were conducted to ascertain the differences between the congestion control algorithms studied and OPNET’s software. The results gotten showed that using different algorithms, traffic could actually be fine tuned in the network being modeled so as to achieve higher Performance. The adjustments were done in the OPNET simulator. Call for Papers: https://sites.google.com/site/ijcsis/
Exploring Congestion Control Mechanism of TCP Variants over Wired & Wireless Networks
A reliable end to end communication is a buzzword that is promised by the transport layer protocol TCP. TCP, a Reliable transport protocols are tuned to perform well in different networks but, packet losses occur mostly because of congestion. TCP contains several mechanisms (such as slow start, congestion avoidance, fast retransmit and fast recovery) for ensuring reliability. However, it has reached its limitation in some challenging network environments like-High speed communication, Communication over different media. Thus, it requires further analysis and development of congestion control algorithms. In this paper, we have explored the reliability and robustness of TCP variants (Tahoe, Reno, New-Reno, SACK, FACK and TCP VEGAS, HSTCP, CUBIC TCP) based on different parameters such as throughput, end-to-delay, jitter and packet drop ratio over wired and wireless networks. We have also compared and discussed different congestion control and avoidance mechanisms of TCP variants to show how they affect the throughput and efficiency of different network environments.
Progress Of Different TCP Variant
2013
At the beginning of development of network technology TCP were designed assuming that communication is using wired network, but recently there is huge demand and use of wireless network for communication. TCP protocol using wireless network unable to handle causes of packet losses in wireless network and also causes of unnecessary delay .So the biggest challenge in MANET is design of TCP variant which should give best performance in all scenarios. Uptil now more than dozens of variants designed and modified by research community but not a single TCP variant performance well in all scenarios. Such as congestion, link failure, signal loss, interference as well as rod and grid network topologies. As some of TCP-variant performs well in particular scenarios but degrades in other scenarios. Our objective was to design such a TCP variant which has to perform optimum in every network scenario For Example congestion, link failure, signal loss and interference scenario as well as chain and t...