Results 11 to 20 of about 12,863 (308)
On the K and KG fading channels [PDF]
Serbian Journal of Electrical Engineering, 2009 In this paper, the composite Rayleigh-Gamma and Nakagami-Gamma distributions are considered. Multipath short-term fading and long-term fading (shadowing) affect wireless channels.
Aleksić Danijela +4 more
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Multiple-channel optimized quantizers for Rayleigh fading channels [PDF]
Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004., 2005 We consider multiple description communication over Rayleigh fading channels with binary phase-shift keying (BPSK) modulators at the transmitter and soft-decision detectors at the receiver. The multiple-channel optimized quantizer design (MCOQD) method, introduced in Y.
null Yugang Zhou +2 more
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The Slashed‐Rayleigh Fading Channel Distribution
Mathematical Problems in Engineering, 2019 We propose an alternative distribution for modelling fading‐shadowing wireless channels. This distribution presents certain advantages over the Rayleigh‐lognormal distribution and the K distribution and has proved useful in the setting described. We obtain closed‐form expressions for the average channel capacity and for the average bit error rate of ...
E. Gómez-Déniz +2 more
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Bandwidth efficient QAM schemes for Rayleigh fading channels [PDF]
IEE Proceedings I Communications, Speech and Vision, 1991 Techniques to improve the BER performance of 16-level QAM transmission over Rayleigh fading channels for PCM systems are presented, simulations were carried out with a carrier frequency of 1.9GHz, data rate of 64 kbit/s and mobile speed of 30mph. The residual BER was reduced by over an order of magnitutde, by introducing circular constellation coupled ...
Webb, W T, Hanzo, L, Steele, R
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Three-channel single-wavelength lidar depolarization calibration [PDF]
Atmospheric Measurement Techniques, 2018 Linear depolarization measurement capabilities were added to the CANDAC Rayleigh–Mie–Raman lidar (CRL) at Eureka, Nunavut, in the Canadian High Arctic in 2010. This upgrade enables measurements of the phases (liquid versus ice) of cold and mixed-phase
E. M. McCullough +7 more
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Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems
EURASIP Journal on Wireless Communications and Networking, 2007 Antenna subarray formation is a novel RF preprocessing technique that reduces the hardware complexity of MIMO systems while alleviating the performance degradations of conventional antenna selection schemes.
Athanasios G. Kanatas +1 more
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Performance analysis of energy detection over hyper-Rayleigh fading channels
The Journal of Engineering, 2015 This study investigates the performance of energy detection (ED)-based spectrum sensing over two-wave with diffused power (TWDP) fading channels, which have been found to provide accurate characterisation for a variety of fading conditions. A closed-form
Eleftherios Chatziantoniou +2 more
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On the Second-Order Statistics of Correlated Cascaded Rayleigh Fading Channels
International Journal of Antennas and Propagation, 2012 The second-order statistics of two correlated cascaded (double) Rayleigh fading channels are analyzed, where different relevant second-order cross-correlation functions of in-phase and quadrature components of the cascaded Rayleigh channels are derived ...
Yawgeng A. Chau, Karl Y.-T. Huang
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Estimation of aircraft distances using transponder signal strength information
Cogent Engineering, 2018 The Federal Aviation Administration has recently mandated the installation of transponders that provide position reporting (Extended Mode S) in aircraft operating in most types of domestic controlled airspace by January 1, 2020.
John H. Mott
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Sensors, 2015 Recently, a novel resource-efficient technique for the reporting channel transmissions in cooperative spectrum sensing was proposed. In this technique, secondary users are allowed to simultaneously send their local decisions to the fusion center, saving ...
Dayan Adionel Guimarães +1 more
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