Abstract - Technofist

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25 Νοε 2013 (πριν από 3 χρόνια και 4 μήνες)

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A Bidirectional Routing Abstraction for


Asymmetric Mobile Ad Hoc Networks.

IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 16, NO. 1,



Abstract



Wireless links are often asymmetric due to heterogeneity

In

the transmission power of devices, non
-
uniform environmental

Noise

and other signal propagation phenomenons. Unfortunately,

routing protocols for mobile ad hoc networks typically

Work

well only in bidirectional networks. This paper first presents

A

simula
tion study quantifying the impact of asymmetric links on

Network

connectivity and routing performance. It then presents a

Framework

called BRA that provides a bidirectional abstraction of

The

asymmetric network to routing protocols. BRA works by
maintaining

Multi
-
hop

reverse routes for unidirectional links and provides

Three

new abilities: improved connectivity by taking advantage

Of

the unidirectional links, reverse route forwarding of contro
l

Packets

to enable off
-
the
-
shelf routing protocols, and detection

Packet

loss on unidirectional links. Extensive simulations of AODV

Layered

on BRA show that packet delivery increases substantially

(two
-
fold in some instances) in asymmetric networks compa
red to

Regular

AODV, which only routes on bidirectional links.

Index Terms

Ad hoc network, asymmetry, routing, unidirectional


Existing System:



The Data mining Algorithms can be categorized into the following:



AODV Algorithm



Classification



Clustering
Algorithm



Given databases of sufficient size and quality, data mining
technology can generate new business opportunities by providing
these capabilities:

-
Automated prediction of trends and behavior.

-
Automated discovery of previously unknown patterns.



Pr
oposed System:


Here the system will take care of the scheduling of data packets
between the source and destination computers.

-
Job scheduling to route the packets at all the ports in the router.

-
Maintaining queue of data packets and scheduling algorithm

is
implemented.

-
FCFS scheduling and BRA scheduling is called for source and
destination.

Software requirements:





Hardware:

PROCESSOR


:

PENTIUM IV 2.6 GHz

RAM



:

512 MB DD RAM

MONITOR


:

15” COLOR

HARD DISK


:

20 GB

FLOPPY DRIVE

:

1.44 MB

CDDRIVE


:

LG 52X


Software:

Front End


: Java Swings

Back End


: Sql Server

Tools Used

: Java Eclipse (Ganymede or Galileo)


Operating
System:

Windows