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On efficient non-coherent detection of Grassmannian constellations
Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005In this paper we derive analytic expressions for the boundaries of the search region of a recently proposed efficient detector for non-coherent reception of Grassmannian constellations. These boundaries are designed to ensure that the restriction of the detection search space to the enclosed region does not incur significant performance degradation. In
Ramy H. Gohary, Timothy N. Davidson
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Non coherent coding for MIMO-OFDM systems
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009This paper deals with the problem of code design for non-coherent frequency-selective Multiple Input Multiple Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM) fading links, where neither the transmitter nor the receiver knows the channel. A simple and classical approach for non coherent (NC) coding for MIMO-OFDM system consists of coding
Raouia Ayadi +3 more
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On a definition of the ambiguity function for non-coherent radars
2012 IEEE 7th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012The ambiguity function is an important tool to study the performance of radar detectors. In this paper, motivated by Neyman-Pearson testing principles, we propose an alternative definition of the ambiguity function that directly associates with each pair of true and assumed target parameters the probability that the radar will declare a target present.
Anand Guruswamy, Rick S. Blum
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Adaptive synchronization for non-coherent UWB receivers
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004Ultra-wideband (UWB) radio transmits data using sub-nanosecond pulses with a very low duty-cycle. It is a promising candidate for short-range communications in dense multipath environments. However, UWB systems have to cope with great design challenges, including difficulties on synchronization, template signal design, and multipath energy combining ...
Ning He, Cihan Tepedelenlioglu
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Non-Coherent Bundles—Applications
1973The applications of non-coherent bundles of optical fibres constitute the major area of utilization of this technology at the present time, and this situation is likely to continue in the foreseeable future. This is because these are the simplest assemblies of optical fibres and therefore offer the greatest scope in variations of design and ...
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2017
Future indoor wireless networks will need alternative RF spectral resources to support the multi-gigabit per second (Gb/s) data speeds demanded by next generation multimedia applications. Although RF spectra in millimeter-wave, terahertz and optical bands are relatively uncongested, the communication systems operating in these frequency bands are ...
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Future indoor wireless networks will need alternative RF spectral resources to support the multi-gigabit per second (Gb/s) data speeds demanded by next generation multimedia applications. Although RF spectra in millimeter-wave, terahertz and optical bands are relatively uncongested, the communication systems operating in these frequency bands are ...
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A Novel Approach to Non Coherent UWB Reception
2008Ultra Wide Band (UWB), as allowed by the FCC, covers a spectrum that involves multiples of gigahertz. Therefore, reception of such a signal requires a slight change from conventional ways while using the same phenomena like demodulation, post amplification and detection. This paper details a novel approach towards reception of UWB following the current
Aamir Riaz +2 more
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Generalized non-coherent detection.
2009The objective of this thesis is to introduce new power efficient non-coherent receiver structures for linear (Quadrature Amplitude Modulated and Phase Shift Keyed) as well as Continuous Phase Modulated signals. A generalized non-coherent detection theory, addressing single or multi-amplitude/phase signals as well as operation in time dispersive ...
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Exact Coherent States and the Nonlinear Dynamics of Wall-Bounded Turbulent Flows
Annual Review of Fluid Mechanics, 2021Daniel Floryan, Michael Graham
exaly