Under Water Acoustic Communication Channel

A SEMINAR REPORT

ON

UNDERWATER ACOUSTIC COMMUNICATION CHANNEL

[pic]

Submitted

By

SOWMYA.G.S

1DS06TE099

[pic]

Bachelor of Engineering (B.E.)

In

TELECOMMUNICATION ENGINEERING (TE)

DAYANANDA SAGAR COLLEGE OF ENGINEERING

CERTIFICATE
[pic]
[pic]

UNDERWATER ACOUSTIC COMMUNICATION CHANNEL

Submitted

By

SOWMYA.G.S

Of the VIII semester in the year 2010 in partial fulfillment of the requirements in the awards of Bachelor of Engineering in Telecommunication.

DATE OF SUBMISSION:-

TAFF IN CHARGE HEAD OF DEPT.

Contents

Introduction…………………………………………………………………. 05

Background……………………………………………………………………..07

Underwater Acoustic Physics in the Ocean

Propagation Loss………………………………………….......13

Absorption…………………………………………………..... 13

Spreading Loss………………………………………………..14

Range, SNR…………………………………………………....14

Multipath………………………………………………………16

Communication in underwater acoustic sensor networks

Introduction…………………………………………………..18

Need for acoustic sensor networks…………………………..18

Drawbacks in the existing access control

And routing protocols………………………………………..19

UW-ASN communication architecture……………………….21

A protocol

References: ← http://arl.nus.edu.sg/twiki/pub/ARL/BibEntries/Chitre2008b.pdf ← http://web.mit.edu/people/millitsa/resources/pdfs/ency.pdf ← http://www.cs.virginia.edu/sigbed/archives/akyildiz.pdf ← http://undergraduate.csse.uwa.edu.au/year4/Current/Students/Files/2004/StevenWong/CorrectedDissertation.pdf