Results 121 to 130 of about 18,238 (168)
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IEEE International Conference on Acoustics Speech and Signal Processing, 1993
High-resolution direction of arrival (DOA) estimates of cyclostationary signals in an environment with many more interferers than sensors is made possible using techniques like cyclic multiple signal classification (MUSIC) and variants. However, these techniques are only valid for narrowband signals.
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High-resolution direction of arrival (DOA) estimates of cyclostationary signals in an environment with many more interferers than sensors is made possible using techniques like cyclic multiple signal classification (MUSIC) and variants. However, these techniques are only valid for narrowband signals.
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33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C), 2003
The current status of ultra-wideband technology and its main applications such as radars and telecom are presented. The main system approaches for radars and communications are discussed and compared.
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The current status of ultra-wideband technology and its main applications such as radars and telecom are presented. The main system approaches for radars and communications are discussed and compared.
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On wideband broadcast channels
Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252), 2002We study the capacity regions of various broadband degraded broadcast channels including the degraded Poisson broadcast channel and the degraded very-noisy broadcast channel. It is shown that in the absence of dark current the capacity region of the degraded Poisson broadcast channel is achievable with a simple time-sharing strategy, and an analogous ...
A. Lapidoth, I.E. Telatar, R. Urbanke
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On Jamming in the Wideband Regime
2006 IEEE International Symposium on Information Theory, 2006We consider the problem of jamming in non-coherent wideband fading channels. While the problem is well understood for coherent channels, the results for the coherent case do not generalize in the non-coherent regime. We show that energy-limited jammers do not affect capacity in the wideband regime.
Siddharth Ray +2 more
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2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006
There are currently various mobile communication standards in use worldwide. Software-defined radio (SDR) enables the creation of multi-standard terminals, which can be flexibly used in various mobile communication systems by simply rewriting their software.
Ulrich L. Rohde, Ajay K. Poddar
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There are currently various mobile communication standards in use worldwide. Software-defined radio (SDR) enables the creation of multi-standard terminals, which can be flexibly used in various mobile communication systems by simply rewriting their software.
Ulrich L. Rohde, Ajay K. Poddar
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2013 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2013
This paper presents a simple method for the design of the multiplierless wideband comb compensator. The design of compensator depends only on the number of the cascaded comb filters. The proposed filter is a cascade of narrowband and wideband compensators, both working at low rate.
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This paper presents a simple method for the design of the multiplierless wideband comb compensator. The design of compensator depends only on the number of the cascaded comb filters. The proposed filter is a cascade of narrowband and wideband compensators, both working at low rate.
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Satellites for wideband access
IEEE Communications Magazine, 1996Communications satellites are used extensively in wideband communications systems today, due to their economic benefits and ability to meet requirements in unique ways. The satellite industry is satisfying the growing demand for wideband access by developing both new concepts that use existing systems and new satellite systems that are optimized for ...
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Applied Optics, 1974
This paper summarizes the design considerations and developmental status of a wideband holographic system breadboard designed to prove the feasibility of recording and reproducing digital data at 400 Mbits/sec and 40 Mbits/sec, respectively. The following critical system elements were investigated: multiplexer-demultiplexer electronics, linear data ...
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This paper summarizes the design considerations and developmental status of a wideband holographic system breadboard designed to prove the feasibility of recording and reproducing digital data at 400 Mbits/sec and 40 Mbits/sec, respectively. The following critical system elements were investigated: multiplexer-demultiplexer electronics, linear data ...
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Rate control for wideband radios
IEEE Communications Letters, 2002We show a technique to control the data rate emitted by wideband radio terminals. This technique is designed for adapting terminals to channel capacity variations. The proposal is based on notifying the application layer of the channel status. This information is generated by the packet scheduler, which is designed for guaranteeing appropriate channel ...
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