8/4/2019 Analysis of the SCTP Behavior in Mobile Ad Hoc Networks With Multi Streaming

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Analysis of the SCTP behavior in mobile ad hoc networks with multi

streaming

ABSTRACTIn this paper we have evaluated the SCTP behavior in order to show the advantages of

multistreaming in ad hoc networks. Ad hoc networks are highly error prone because of node mobility andinterference and channel fading on wireless links. This is why we have assumed a system characterized by

high error rate in the wireless communication links. At first we have discussed the error model that

summarizes the possible causes of message lost in the network and we have selected the routing protocol

that affects the least SCTP performance. Then we have presented our results comparing the SCTP against

the TCP, assuming different scenarios.

The main result we have achieved has been to prove that multistreaming increases good put and

reduces overhead if many errors occur during the communication because it limits the HOL blocking

problem. Furthermore, the SCTP outperforms TCP especially if small buffers at the receiver end point are

used. Since wireless devices in ad hoc networks are generally characterized by limited resources and the size

of the receiving buffer is directly proportional to the dimension of the device and to its power consumption,

this result is very interesting. As consequence of the results we have shown in this paper, we can assert thatat the transport layer the SCTP

EXISTING SYSTEM:

Ad hoc networks have emerged as a promising approach for communication in

mobile environments. However, ad hoc networks are characterized by unique properties and challenging

problems that limit the utilization of traditional networking techniques and protocols in this context.

Wireless links are highly error prone and they can break frequently because of node mobility, interference

and channel fading.It is very hard to maintain an end-to-end route, due to the dynamic topology of the

system. In this paper we

Consider the problem of maintaining reliable end-to-endcommunication in an ad hoc network. The main

drawback here is HOL (head-of-line) blocking.

PROPOSED SYSTEM:

SCTP is reliable, connection and message oriented and it offers a partially ordered

service. Such transport protocol is ideal for applications that need flexible control over the ordering of

individual elements, like multimedia applications. Application data can be divided in independent

Application Data Units (ADUs) and SCTP processed ADUs indifferent data streams (multistreaming

approach). Each stream is kind of a sub-flow within the overall data flow, and the delivery of a sub-flow is

independent from the others. SCTP multiplexes several data streams into one SCTP association. Here we are

using AODV, DSDV, DSRrouting algorithms for implementing multistreaming concept.

REQUIREMENTS:

SOFTWARE

LINUX O.S

NS-2/QUALNET SIMULATOR TOOL

SUBMITTED BY

B.MALLIKARJUNA REDDY 11MIT0001

T.VENU KRISHNA 11MIT0012

P.KASTHURI THEJA 11MIT0033

SD.MOHAMMED RAJA 11MIT0070

GUIDED BY

R.THANDEESWRAN