Underwater wireless communications can enable
many scientific, environmental, commercial,
safety, and military applications. Wireless signal
transmission is also crucial to remotely control
instruments in ocean observatories and to enable
coordination of swarms of autonomous underwater
vehicles and robots, which will play the role
of mobile nodes in future ocean observation networks
by virtue of their flexibility and reconfigurability.
To make underwater applications
viable, efficient communication protocols among
underwater devices, ....etc

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in ieee format
topic - overview of networking protocols for underwater wireless communications ....etc

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please give ppt for seminar on terahertz photonics for wireless communication ....etc

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data communications and networking by forouzan in 4th edition i want to go with topics overview, so i want ppts related to that text book. Can u help me........ ....etc

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Definition
Laser communications offer a viable alternative to RF communications for inter satellite links and other applications where high-performance links are a necessity. High data rate, small antenna size, narrow beam divergence, and a narrow field of view are characteristics of laser communications that offer a number of potential advantages for system design.

Lasers have been considered for space communications since their realization in 1960. Specific advancements were needed in component performance and system engineering particula ....etc

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The communication needs of Earth observation satellites is steadily increasing. Within a few
years, the data rate of such satellites will exceed 1 Gbps, the angular resolution of sensors will be
less than 1 μrad, and the memory size of onboard data recorders will be beyond 1 Tbytes.
Compared to radio frequency links, optical communications in space offer various advantages
such as smaller and lighter equipment, higher data rates, limited risk of interference with other
communications systems, and the effective use of freque ....etc

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Definition
Lasers have been considered for space communications since their realization in 1960. However, it was soon recognized that, although the laser had potential for the transfer of data at extremely high rates, specific advancements were needed in component performance and systems engineering, particularly for space-qualified hardware. Advances in system architecture, data formatting, and component technology over the past three decades have made laser communications in space not only a viable but also a attractive approach to intersate ....etc

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The demand for making air traveling more 'pleasant, secure and productive for passengers is one of the winning factors for airlines and aircraft industry. Current trends are towards high data rate communication services, in particular Internet applications. In an aeronautical scenario global coverage is essential for providing continuous service. Therefore satellite communication becomes indispensable, and together with the ever increasing data rate requirements of applications, aeronautical satellite communication meets an expansive market. Wi ....etc

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Definition
Lasers have been considered for space communications since their realization in 1960. However, it was soon recognized that, although the laser had potential for the transfer of data at extremely high rates, specific advancements were needed in component performance and systems engineering, particularly for space-qualified hardware. Advances in system architecture, data formatting, and component technology over the past three decades have made laser communications in space not only a viable but also a attractive approach to intersate ....etc

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Roke Manor Research is a leading provider of mobile telecommunications technology for both terminals and base stations. We add value to our clients' projects by reducing time-to-market and lowering production costs, and provide lasting benefits through building long-term relationships and working in partnership with our customers.
We have played an active role in cellular communications technology since the 1980's, working initially in GSM and more recently in the definition and development of 3G (UMTS). Roke Manor Research has over 200 engine ....etc

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