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Space station marks 10 years in service

Space station marks 10 years in service

...Holding a sound-level meter, Expedition 3 mission commander Frank Culbertson researches acoustic conditions aboard the ISS. The space station's Acoustic Measurement Programme is... Read more

1 November, 2010 by James Martin
Underwater <endeca_term>Acoustic</endeca_term> Communication Based on VMCK Modulation

Underwater Acoustic Communication Based on VMCK Modulation

In this paper, ultra narrow band modulation is applied into acoustic communication, which is original and innovative. The Very Minimum Chirp Keying (VMCK... Read more

1 January, 2012
Scheduling Granularity in Underwater <endeca_term>Acoustic</endeca_term> Networks

Scheduling Granularity in Underwater Acoustic Networks

Underwater acoustic networks have many distinct channel characteristics when compared to terrestrial networks. Long... Read more

2 December, 2011
Ricean Shadowed Statistical Characterization of Shallow Water <endeca_term>Acoustic</endeca_term> Channels for Wireless Communications

Ricean Shadowed Statistical Characterization of Shallow Water Acoustic Channels for Wireless Communications

In this paper, the statistical behaviour of the shallow water acoustic channel for wireless communications is shown to be well characterized by the... Read more

8 November, 2011
A Reliable Geocasting Solution for Underwater <endeca_term>Acoustic</endeca_term> Sensor Networks

A Reliable Geocasting Solution for Underwater Acoustic Sensor Networks

Reliable data delivery for underwater acoustic sensor networks is a major concern in applications such as surveillance, data... Read more

10 October, 2011
NAMS: A Networked <endeca_term>Acoustic</endeca_term> Modem System for Underwater Applications

NAMS: A Networked Acoustic Modem System for Underwater Applications

In this paper, the authors present a Networked Acoustic Modem System (NAMS) by integrating a high-speed OFDM modem and a... Read more

29 September, 2011
Utility Based Cross-Layer Collaboration for Speech Enhancement in Wireless <endeca_term>Acoustic</endeca_term> Sensor Networks

Utility Based Cross-Layer Collaboration for Speech Enhancement in Wireless Acoustic Sensor Networks

A wireless acoustic sensor network is considered that is used to estimate a desired speech... Read more

2 September, 2011
A Reliable and Efficient MAC Protocol for Underwater <endeca_term>Acoustic</endeca_term> Sensor Networks

A Reliable and Efficient MAC Protocol for Underwater Acoustic Sensor Networks

UnderWater Acoustic Sensor Networks (UWASNs) are playing a key role in ocean applications. Unfortunately... Read more

12 July, 2011
QUO VADIS: QoS-Aware Underwater Optimization Framework for Inter-Vehicle Communication Using <endeca_term>Acoustic</endeca_term> Directional Transducers

QUO VADIS: QoS-Aware Underwater Optimization Framework for Inter-Vehicle Communication Using Acoustic Directional Transducers

Underwater acoustic communications consume a significant amount of energy due to the high transmission... Read more

1 July, 2011
Implementation of Cooperative Virtual MISO Communication in Underwater <endeca_term>Acoustic</endeca_term> Wireless Sensor Networks

Implementation of Cooperative Virtual MISO Communication in Underwater Acoustic Wireless Sensor Networks

...paper, for the first time, virtual antennas are used in an underwater acoustic wireless sensor network and their effects on total system performance are studied... Read more

1 July, 2011
Protocol Design Issues in Underwater <endeca_term>Acoustic</endeca_term> Networks

Protocol Design Issues in Underwater Acoustic Networks

...this paper, the authors discuss issues related to the design of underwater acoustic network protocols which are tailored around, and leverage on, the differences between... Read more

25 June, 2011
Sensor Networks for <endeca_term>Acoustic</endeca_term> Source Localization Using Acoustic Fingerprint in Urban Environments and Construction Sites

Sensor Networks for Acoustic Source Localization Using Acoustic Fingerprint in Urban Environments and Construction Sites

The authors investigate the feasibility and performance of the acoustic localization system using the acoustic fingerprint for asynchronous Wireless Sensor Network (WSN... Read more

24 June, 2011
Design and Analysis of Low Frequency Transmitter and Receiver for an Insecure Shallow Water <endeca_term>Acoustic</endeca_term> Channel of the Persian Gulf

Design and Analysis of Low Frequency Transmitter and Receiver for an Insecure Shallow Water Acoustic Channel of the Persian Gulf

Underwater acoustic communications presents unique challenges that are being overcome with advances in signal... Read more

25 May, 2011
Design and Simulation of a Secure and Robust Underwater <endeca_term>Acoustic</endeca_term> Communication System in the Persian Gulf

Design and Simulation of a Secure and Robust Underwater Acoustic Communication System in the Persian Gulf

In recent years, UnderWater Acoustic (UWA) communications have received much attention as their applications have begun to... Read more

1 May, 2011
A MACA-based MAC Protocol for Underwater <endeca_term>Acoustic</endeca_term> Sensor Networks

A MACA-based MAC Protocol for Underwater Acoustic Sensor Networks

The Medium Access Control (MAC) protocol design of UnderWater Acoustic Sensor Networks (UWASNs) faces many challenges: the power limitation at nodes, long... Read more

1 April, 2011

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debsmk

I have just changed mine to white they said 3 to 5 days

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Atangana

I would like a job for me and do good to their tackiness vellent my help I will do my best to help you mercie for all

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BrownieBoy

Well done to IDC for producing a report that says using XP is a waste of money. Only 11 years too late with it is all....

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Jack Schofield

@Burn-IT ...which doesn't mean it isn't true ;-) I'll be interested if you can find any properly-researched, independent data from any of the...

3 hours ago by Jack Schofield on Using Windows XP is a waste of money, says IDC
Burn-IT

As said, sponsored by Microsoft........

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If the link to the next section existed that would be awesome.... Guess I have to ask uncle google where it is

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I think that we have been here before, shipments are not equal to sales. Correct?

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It is useful for their lifes,and also this matters are important for networking students.

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DarkDown

yeah! all we want free software

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