More Info About Underwater Sensor networks using optical wireless communication.

http://seminarsprojects.net/Thread-underwater-sensor-network-using-optical-wireless-communication-full-report ....etc

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Hi am Nisha.I need full information about the project Efficient Multipath Communication for Time-Critical Applications in Underwater Acoustic
Sensor Networks to complete my project successfully. ....etc

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Wireline Quality Underwater Wireless Communication
Using High Speed Acoustic Modems

Abstract--The paper introduces LinkQuest Inc.'s cutting-edge
high speed underwater acoustic modems. LinkQuest Inc.
combined recent advances in high speed digital communication
with broadband underwater acoustics in the development of the
high speed modems. Advanced Broadband Spread Spectrum
Technology results in dramatically increased data rate and
robustness and decrease in power consumption. The modems are
proven to perform at high dat ....etc

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Abstract In this paper, we focus on critical event monitoring in wireless sensor networks (WSNs), where only a small number of packets need to be transmitted most of the time. When a critical event occurs, an alarm message should be broadcast to the entire network as soon as possible. To prolong the network lifetime, some sleep scheduling methods are always employed in WSNs, resulting in significant broadcasting delay, especially in large scale WSNs. In this paper, we propose a novel sleep scheduling method to reduce the delay of alarm broadca ....etc

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Can you help name some mission critical applications where every second counts ....etc

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Please provide abstract and documentation for Remote control of critical software applications with mobile phone topic to the below email id [email protected] please sir ....etc

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BackGround
A CDMA (Code Division Multiple Access) based communication system allows the users to share an available frequency spectrum. The users are allocated different codes that are recognizable for the preferred receivers. This solution has several advantages, among other it gives increased robustness to interference. The CDMA project will investigate the benefits and losses of using CDMA communication system on an acoustic channel between two computers. The focus of the project will be to study how a higher data rate will affect t ....etc

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Presented By:
Reena Kumari
M.Tech (ETC)
Roll No: 851015
3rd semester,2009

Introduction
Goal:
To design a efficient MAC protocol for underwater acoustic sensor network suitable for multi-hop network

Different emphasis from mid-semester surveys:
Challenges and opportunities of Physical channel of underwater communication(already discussed)
Studied different MAC protocol as introduced by different authors (already discussed)
Comparison between MAC s and their challenges (already discussed) ....etc

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Connected Sensor Cover: Self-Organization of Sensor Networks for Efficient Query Execution (Java)
IEE/ACM Transactions on Networking, Vol. 14, No. 1

Abstract:
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor network can be exploited to reduce the communication cost incurred in execution of such queries. Any reduction in communication cost would result in an efficient use of the battery energy, which is ....etc

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high speed underwater acoustic modems is shown in this paper. high speed digital communication and broadband underwater acoustics technologies have been combined to achieve this . increased data rate and decreased power consumption is achieved by Broadband Spread Spectrum Technology. The underwater communication has to deal with noises such as offshore drilling noise, ambient noise, ship noise etc. no communication errors has been seen to appear with these noises.
Broadband Spread Spectrum Technology us implemented using DSP which is sui ....etc

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