ppt on underwater wireless communications
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
merinsherin scaria
Active In SP
**

Posts: 1
Joined: Sep 2010
#1
12-09-2010, 12:20 PM


[/color][/size][/font][font=Times New Roman][size=medium][color=#000000]
Reply
seminar surveyer
Active In SP
**

Posts: 3,541
Joined: Sep 2010
#2
23-09-2010, 09:43 AM

hi
to get more information on 'underwater wireless communications', please visit the thread given below.

topicideashow-to-under-water-wireless-sensor-networks

Regards
Reply
pallavi chopra
Active In SP
**

Posts: 1
Joined: Feb 2011
#3
17-02-2011, 05:14 PM

i need a ppt n some information on underwater wireless communication ..help needed.
Reply
project topics
Active In SP
**

Posts: 2,492
Joined: Mar 2010
#4
04-04-2011, 12:10 PM

i know there is lot of paper presented below the domain underwater communication see some of them
topicideashow-to-underwater-wireless-communication-full-report
topicideashow-to-underwater-sensor-network-using-optical-wireless-communication-full-report
topicideashow-to-under-water-communication
topicideashow-to-underwater-wireless-communication-using-high-speed-acoustic-modems
topicideashow-to-underwater-optical-communication
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
KICKKICK
Active In SP
**

Posts: 1
Joined: Sep 2012
#5
11-09-2012, 08:32 PM

PLEASE PERMIT ME TO DOWNLOAD THIS PPTRolleyes
Reply
project uploader
Active In SP
**

Posts: 2,534
Joined: Jan 2012
#6
12-09-2012, 04:17 PM

To get more information about the topic "underwater wireless communications"
please visit the age
topicideashow-to-underwater-wireless-communication-full-report
topicideashow-to-underwater-wireless-communication-using-high-speed-acoustic-modems
topicideashow-to-underwater-wireless-communication-full-report?pid=27292&mode=threaded
if you not get relevant information about underwater wireless communications from there .. please reply here again with specific information request (with listing of sub titles and headings ) . so that we/generous users can help you on that
Reply
seminar flower
Super Moderator
******

Posts: 10,120
Joined: Apr 2012
#7
01-10-2012, 01:56 PM

UNDERWATER WIRELESS COMMUNICATION


.doc   1UNDERWATER WIRELESS.doc (Size: 415 KB / Downloads: 19)

ABSTRACT:

Underwater wireless communication is a flourishing research area in the field of wireless communications. This paper presents the overall framework of the necessity of underwater wireless systems, characteristics of an acoustic channel, hardware and working of acoustic modems, sensor networks and different communication architectures involved in the sensor networks. Applications till date, like oceanographic data collection,AUVs(autonomous underwater vehicles),underwater radio etc.., future challenges like effective transmission of video and audio signals by real time monitoring have been emphasized with a view to overcome the present limitations.

INTRODUCTION

The signals that are used to carry digital information through an underwater channel are not radio signals as electromagnetic waves propogate over short distances. Instead acoustic waves are used which can propogate over long distances. Over the past decades, cabled submersibles were used to discover the remains of titanic and hydrothermal vents due to the burden and cost of heavy cables that must be used to establish a high-speed communication between the remote end and the surface. To overcome such impediments, underwater wireless communication has come into existence.

WORKING PRINCIPLE:

When no data is being transmitted, the modem stays in sleep mode thereby it periodically wakes
Up to receive possible data being transmitted by far end modem. This results in low power consumption.

DATA TRANSMISSION IN MODEM:

Suppose the bottom modem tries to send data to surface modem, it receives data from its link while it is in sleep mode and then it switches to the transmit mode and begins to transmit. As the surface modem wakes up and detects data from bottom modem, it switches from sleep mode to receive mode.

UNDERWATER ACOUSTIC SENSOR NETWORKS:

Underwater networks consist of a variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area. Traditional approach for ocean bottom monitoring is to deploy underwater sensors that record data and then recover the instruments. By this method real time monitoring is not possible, failures occur. This can be overcome by connecting underwater instruments by means of wireless links.

3-D ARCHITECTURE:

• Sensor nodes float at different depths in order to observe a given phenomenon.
• The possible solution to achieve different depths would be to attach each UW-sensor node to a surface buoy, by means of wires.
• Multiple floating buoys may obstruct ships navigating on the surface.
They may also be easily detected and deactivated by enemies in military settings.
Due to the above reasons, each sensor is anchored to the ocean bottom and equipped with a floating buoy that can be inflated by a pump. The buoy pushes the sensor towards the ocean surface. The depth of the sensor can then be regulated by adjusting the length of the wire that connects the sensor to the anchor, by means of an electronically controlled engine that resides on the sensor.

CONCLUSION:

This paper gives the overall view of the necessity of underwater wireless communication and its applications. Despite much development in this area of the underwater wireless communication, there is still an immense scope so more research as major part of the ocean bottom yet remains unexploded. Advanced versions of the existing applications and innovative inventions have become a must in this field. Therefore, the main objective is to imbibe knowledge about this emerging field and thereby encourage research and implementation of advanced technology to overcome the present limitations such as the environmental effects on the noise performance of acoustic systems as mentioned in this paper.
Reply
Guest
Thinking To Register

 
#8
18-02-2013, 02:39 PM



plz send ppt about under water wireless communication
Reply
seminar tips
Super Moderator
******

Posts: 8,857
Joined: Oct 2012
#9
19-02-2013, 10:07 AM

to get information about the link bellow "underwater wireless communications" full report ppt and related topic refer the link bellow

topicideashow-to-underwater-wireless-communication-full-report

topicideashow-to-power-point-on-underwater-wireless-communication

topicideashow-to-underwater-wireless-communication-full-report?pid=27292&mode=threaded

topicideashow-to-ppt-on-underwater-wireless-communication-free-download
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  ieee seminar paper on wireless tachometer pdf Guest 1 93 31-10-2016, 11:14 AM
Last Post: amrutha735
  wireless fingerprint attendance system based on zigbee technology seminar ppts Guest 1 65 29-10-2016, 03:39 PM
Last Post: amrutha735
  a seminar report on underwater concrete pdf Guest 1 104 29-10-2016, 03:22 PM
Last Post: amrutha735
  documentation on intelligent wireless video cameras Guest 1 85 29-10-2016, 02:56 PM
Last Post: amrutha735
  arun kumar notes on wireless communication 8th sem ece Guest 1 111 29-10-2016, 11:44 AM
Last Post: jaseela123
  wireless communication by arun vtu Guest 1 59 29-10-2016, 11:44 AM
Last Post: jaseela123
  arun kumar notes on wireless communication 8th sem ece Guest 1 193 29-10-2016, 11:09 AM
Last Post: ijasti
  wireless telemetry for electronic pill technology ppt Guest 1 77 11-10-2016, 04:27 PM
Last Post: amrutha735
Thumbs Up wireless voice communication between solar panel and laser miniproject doucment Guest 1 74 11-10-2016, 03:05 PM
Last Post: amrutha735
  wireless helth monitoring system in hospitals extc final year projects synopsis pdf Guest 1 52 11-10-2016, 02:03 PM
Last Post: amrutha735