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Ultra-Wideband (UWB) technology is a wireless transmission scheme having a bandwidth of more than 25% of a center frequency, or more than 1.5GHz. It uses very narrow band pulses of nano-seconds duration to provide very high data rate communications. The pulses in the UWB spread the energy of the signal over a large frequency range and it is extremely important to meet the requirements of ultra wideband...
Ultra-Wideband (UWB) technology is a wireless transmission scheme that occupies a bandwidth of more than 25% of a center frequency, or more than 1.5GHz. It uses very narrow band pulses of nano-seconds duration to provide very high data rate communications. These pulses spread the energy over a large frequency range because of which it is called ultra-wideband. Ultra wideband (UWB) technology, useful...
Ultra-wideband (UWB) employs very narrow band pulses of nano-seconds duration to provide high data rate communications. Pulses spread the energy over a wide frequency because of that it is called ultra-wideband. Ultra wideband (UWB) technology is very useful for both communication and sensing applications, uses the radio spectrum differently than the majority of radio communication technologies. In...
An Ultra-wideband (UWB) employs very narrow pulses, of the order of a few nano-seconds, in order to provide high data rate communications .These narrow pulses spread the energy over a wide frequency band, and hence the name ultra-wideband (also called Impulse radio). In this paper, we will discuss the basic techniques of UWB pulse modulation and transmission design considerations using Time Hopping...
Ultra-wideband (UWB) employs very narrow band pulses of nano-seconds duration to provide high data rate communications. Pulses spread the energy over a wide frequency because of that it is called ultra-wideband. Ultra wideband (UWB) technology, useful for both communication and sensing applications, uses the radio spectrum differently than the vast majority of radio communication technologies. In...
Ultra-wideband (UWB) uses narrow band pulses of nano-seconds to provide high data rate communications .These narrow pulses spread the energy across a wide frequency band that is why it is called ultra-wideband. In this paper, we will discuss the UWB pulse modulation and multiple access modulation schemes using Pulse Position Modulation technique .The simulations are done in MATLAB software.
Ultra-wideband (UWB) is a new promising technology that has the capability to revolutionize the field of wireless communications. It uses very narrow pulses, of the order of a few nano-seconds, in order to have very high data rate communications. These narrow pulses spread the energy over a wide frequency band, and hence the name ultra-wideband (also called Impulse radio). As one of the major concern...
This paper presents design and simulation of multiband Chaucer fractal patch antenna loaded with complementary square split ring resonator (CSSRR). CSSRR is single negative metamaterial having negative permittivity. The antenna resonates at 8GHz, 11GHz, 15GHz and 17GHz. Simulation results indicate that there is a fair value of return loss, gain, and bandwidth and directivity at all four resonant frequencies...
The adhoc networks are considered to be infrastructure less networks therefore the scarcity of resources (i.e. Bandwidth and Energy) are the main issues requiring attention. In this paper the routing applications/algorithms for optimizing battery life time are analyzed while taking into account the highly unreliable real time behavior of mica2 motes. Routing applications are run in Matlab based probabilistic...
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